Objectives:To investigate the effect of Chinese herbal medicine"heche assisted preg-nancy recipe (HCAPR)" on estrogen receptor(ER), progesterone receptor (PR), pro-lifierating cell nuclear antigen(PCNA) and ...Objectives:To investigate the effect of Chinese herbal medicine"heche assisted preg-nancy recipe (HCAPR)" on estrogen receptor(ER), progesterone receptor (PR), pro-lifierating cell nuclear antigen(PCNA) and vascular endothelial growth factor (VEGF)in endometrium of infertile women.Methods: The S-P immunohistochemical assay was used to observe expression ofER, PR , PCNA and VEGF in late proliferative phase before and after the HCAPR treat-ment.Results: After the treatment, the expression of ER,PR,PCNA and VEGF in nucleiof glandular epithelium and stromal cells was significantly stronger (all P<0. 001) re-spectively than that before treatment , especially the expression of PCNA and VEGF.Conclusions: These results suggest that traditional Chinese medicine HCAPR oftonifying kidney and regulating menstruation increased the synthesis of ER,PR, PCNAand VEGF, which may promote normal growth and development of the endometrium ,improve the micro-environment of the endometrium, and enhance uterine receptivity.The evidence may provide theoretical basis for therapy infertility with Chinese herbalmedicine.展开更多
AIM:To investigate the antiangiogenic effects of endostatin on colonic carcinoma cell line implanted in nude mice and its mechanism. METHODS:Nude mice underwent subcutaneous injection with LS-174t colonic carcinoma ce...AIM:To investigate the antiangiogenic effects of endostatin on colonic carcinoma cell line implanted in nude mice and its mechanism. METHODS:Nude mice underwent subcutaneous injection with LS-174t colonic carcinoma cell line to generate carcinoma and were randomly separated into two groups.Mice received injection of vehicle or endostatin every day for two weeks. After the tumor was harvested,the tumor volumes were determined,and the expressions of CD34,VEGF and FIk-1 were examined by immunohistochemical method. RESULTS:Tumor volume was significantly inhibited in the endostatin group(84.17%)and tumor weight was significantly inhibited in the endostatin group(0.197±0.049) compared to the control group(1.198±0.105)(F=22.56, P=0.001),microvessel density(MVD)was significantly decreased in the treated group(31.857±3.515)compared to the control group(100.143±4.290)(F=151.62,P<0.001). Furthermore,the expression of FIk-1 was significantly inhibited in the treated group(34.29%) ompared to the control group(8.57%)(X^2=13.745,P=0.001).However no significant decrease was observed in the expression of vascular endothelial growth factor(VEGF)between these two groups(X^2=0.119,P=0.730). CONCLUSION:Endostatin can inhibit tumor growth and angiogenesis by blocking Vegf/FIk-1 pathway.This experiment provides the theory basis for developing a new anti-carcinoma drug through studying the properties of anti-angiogenesis inhibitors.展开更多
Objective: To investigate the expressions of vascular endothelial growth factor (VEGF) and proliferating cell nuclear antigen (Ki-67) in patients with rectal adenocarcinoma and their associations with neoadjuvant...Objective: To investigate the expressions of vascular endothelial growth factor (VEGF) and proliferating cell nuclear antigen (Ki-67) in patients with rectal adenocarcinoma and their associations with neoadjuvant therapy. Methods: The expressions of Ki-67 and VEGF in 32 cases of rectal adenocarcinoma, including both pretreatment tumor biopsies and postoperative specimen, were detected by immunohistochemistry using specific antibodies, and were correlated with clinicopathological factors. Results: The intensity of VEGF staining was significantly correlated with lymph nodal metastasis (P =0.033), depth of tumor invasion (P =0.007) and tumor stage (P= 0.016), but not with histological types, tumor sizes, patients' ages and genders (P 〉 0.05). Low level of VEGF expression had significant correlation with the high sensitivity of response to neoadjuvant therapy (P = 0.016). The transient increase of VEGF expression could be seen after neoadjuvant therapy (P = 0.035). Ki-67 labeling index (Ki-67-LI) was significantly correlated with lymph node metastasis (P = 0.028), but not correlated to tumor sizes, patients' ages and genders (P 〉 0.05). Tumors with lower Ki-67-LI were more sensitive to neoadjuvant therapy (P = 0.032). The Ki-67 level decreased after neoadjuvant therapy, but no statistical significance was found (P 〉 0.05). Conclusion: Our results demonstrate that the expression of VEGF and Ki-67 in pretreatment rectal adenocarcinoma biopsies may be predictive of tumor response to neoadjuvant therapy.展开更多
Purpose:To investigate the spatial and temporal regulation effect of vascular endothelial growth factor(VEGF)on human fetal choroid vascularization.Methods:The eyeballs of 54human fetuses from the 9th week to the40th ...Purpose:To investigate the spatial and temporal regulation effect of vascular endothelial growth factor(VEGF)on human fetal choroid vascularization.Methods:The eyeballs of 54human fetuses from the 9th week to the40th week due to accidental abortion were studied by immunohistochemically staining for the expression of VEGF and proliferation cell nuclear antigen(PCNA).Results:(1)The distribution of VEGF expression in the retinal pigment epithelium(RPE)decreased with the increase of age,the peak of which was between the 9th and 14th week,(2)PCNAimmunoreactivity was localized within choriocapillaris endothe-lium,THe expression level decreased alone with fetus age,In this period the chori-ocapillaris endothelium kept proliferation,differentiation.canalization and remodelled to form the choroid vessels.(3)Statistically significant correlations were shown between the expression of VEGF in the PRE and that of PCNAin choriocapillaris endothelium(r=0.933,P<0.01).Conclusion:VEGF expression in PRE was positively involved in modulating human fetal choroid vascularization.Eye Science2000;16:11-14.展开更多
The dependence of tumor growth on neovascularization has become an important aspect of cancer biology.Tumor angiogenesis is one of the key mechanisms of tumorigenesis,growth and metastasis.The key events involved in t...The dependence of tumor growth on neovascularization has become an important aspect of cancer biology.Tumor angiogenesis is one of the key mechanisms of tumorigenesis,growth and metastasis.The key events involved in this process are endothelial cell proliferation,migration,and vascular formation.Recent studies have revealed the importance of tumor-associated endothelial cells(TECs)in the development and progression of colorectal cancer(CRC),including epithelial proliferation,stem cell maintenance,angiogenesis,and immune remodeling.Decades of research have identified that the molecular basis of tumor angiogenesis includes vascular endothelial growth factors(VEGFs)and their receptor family,which are the main targets of antiangiogenesis therapy.VEGFs and their receptors play key roles in the pathology of angiogenesis,and their overexpression indicates poor prognosis in CRC.This article reviews the characteristics of the tumor vasculature and the role of TECs in different stages of CRC and immune remodeling.We also discuss the biological effects of VEGFs and their receptor family as angiogenesis regulators and emphasize the clinical implications of TECs in clinical treatment.展开更多
Background:Pancreatic cancer is a malignant tumor of the gastrointestinal tract.Due to its insidious onset,most patients with newly diagnosed pancreatic cancer have missed the opportunity for radical surgery,which off...Background:Pancreatic cancer is a malignant tumor of the gastrointestinal tract.Due to its insidious onset,most patients with newly diagnosed pancreatic cancer have missed the opportunity for radical surgery,which offers patients the best chance of survival.The 5-year survival rate of patients with pancreatic cancer can be improved with early diagnosis,and serum tumor makers are an inexpensive and convenient diagnostic tool that is widely used in the diagnosis of malignancies.Objective:To determine the diagnostic value of vascular endothelial growth factor(VEGF),carbohydrate antigen 19-9(CA 19-9),and carcinoembryonic antigen(CEA)in patients with pancreatic cancer and the risk factors of vascular invasion.Methods:An experimental group comprising 52 patients with pancreatic cancer admitted to our department from July 2021 to July 2022 and a control group comprising 21 patients with benign pancreatic diseases during the same period were included in our study.Their serum VEGF,CA 19-9,and CEA levels were detected and compared between the two groups,and the correlation between the three markers in the invaded vessel and non-invaded vessel groups was investigated.The diagnostic value of a single tumor marker and in combination for pancreatic cancer was analyzed,and the three tumor marker levels of the experimental group in different pathological characteristics were detected and compared.Results:The experimental group had higher serum VEGF,CA 19-9,and CEA levels than the control group(P<0.05).Through a receiver operating characteristic(ROC)curve analysis,the combined detection had the highest value for the diagnosis of pancreatic cancer,in which the area under the curve(AUC)was 0.9158(95%CI:0.8415-0.9900),while the sensitivity and specificity were 76.19%and 98.08%,respectively.Serum VEGF and CA 19-9 levels were higher in stage Ⅲ-Ⅳ pancreatic cancer patients and those with tumor metastasis compared with stage Ⅰ-Ⅱ patients and those without metastasis(P<0.05),respectively.Binary logistic regression analysis was performed to determine the risk factors of vascular invasion in pancreatic cancer,and the results showed that only serum VEGF was a risk factor(P<0.05),OR(95%CI):1.001-1.006.Conclusion:Patients with pancreatic cancer have significantly higher serum VEGF,CA 19-9,and CEA levels,and the combined detection of tumor markers is of high clinical value in its diagnosis.In addition,serum VEGF is an independent risk factor of vascular invasion in pancreatic cancer,which can predict vascular invasion to a certain extent.展开更多
OBJECTIVE: To investigate the protective effects of electroacupuncture and LGNHFD on cerebral ischemia-reperfusion injury, and their effects on the expression of cluster of differentiation 34(CD 34), vascular endothel...OBJECTIVE: To investigate the protective effects of electroacupuncture and LGNHFD on cerebral ischemia-reperfusion injury, and their effects on the expression of cluster of differentiation 34(CD 34), vascular endothelial growth factor(VEGF), and basic fibroblast growth factor(b FGF) in the peripheral tissue of the cerebral ischemic semi-dark zone in rats.The influence and mechanism of expression.METHODS: Healthy male Sprague-Dawley rats were randomly divided into the sham operation group, model group, Traditional Chinese Medicine (TCM) group, electroacupuncture group, and acupuncture group. The cerebral ischemia model was prepared by middle artery occlusion. The electroacupuncture and TCM groups received electroacupuncture at the "Neiguan(PC6)", "Baihui(GV20)", and "Renzhong(GV26)" acupoints from 4 h after modeling, once daily for 14 d. After modeling,the acupuncture and TCM groups were administered LGNHFD once daily for 14 d. After treatment,the infarct volume and regional cerebral blood flow(r CBF) were measured in each group, the expression of CD34 in the surrounding ischemic penumbra was determined using immunohistochemistry,and the expression of angiogenesis-related factors in the ischemic hemisphere was detected by western blot.RESULTS: Compared with the sham operation group, r CBF was significantly decreased(P < 0.01)and cerebral infarction volume was significantly increased(P < 0.01) in the model group at four time points(5 min and 3, 7, and 14 d after modeling). At three postoperative time points(3, 7, and 14 d), the number of CD34 + cells in the model group were significantly increased(P < 0.01), and the relative expression levels of VEGF, b FGF, and CD34+ in the ischemic hemisphere were significantly increased(P < 0.01, P < 0.05). Compared with the model group, the r CBF of the acupuncture group was significantly increased at 3, 7, and 14 d after intervention(P < 0.01), while the r CBF of the electroacupuncture and TCM groups was significantly increased at 7 and 14 d after intervention(P < 0.01).After 3, 7, and 14 d of intervention, infarct volume was significantly reduced(P < 0.01), the number of CD34 + cells was significantly increased(P < 0.01,P < 0.05), and the relative expression levels of VEGF,b FGF, and CD34 in the ischemic hemisphere were significantly increased(P < 0.01, P < 0.05). Compared with the electroacupuncture and TCM groups, the r CBF of the acupuncture group was significantly increased(P < 0.01), the infarct volume was significantly reduced(P < 0.01), and the relative expression levels of VEGF, b FGF, and CD34 were significantly increased(P < 0.05, P < 0.01) after 3, 7,and 14 d of intervention.CONCLUSION: Acupuncture therapy is superior to simple drug and electroacupuncture therapy for reducing infarct volume, increasing r CBF and CD34 expression in cells, and promoting capillary regeneration in rats with cerebral ischemia. This may be related to the increased expression of VEGF, b FGF,and CD34 — which are related to cerebrovascular neovascularization — in the ischemic hemispheres of such rats.展开更多
The disease burden related to hepatocellular carcinoma(HCC) is increasing. Most HCC patients are diagnosed at the advanced stage and multikinase inhibitors have been the only treatment choice for them. Recently, the a...The disease burden related to hepatocellular carcinoma(HCC) is increasing. Most HCC patients are diagnosed at the advanced stage and multikinase inhibitors have been the only treatment choice for them. Recently, the approval of immune checkpoint inhibitors(ICIs) has provided a new therapeutic strategy for HCC. It is noteworthy that the positive outcomes of the phase Ⅲ clinical trial IMBrave150 [atezolizumab(anti-programmed cell death ligand 1 antibody) combined with bevacizumab(anti-vascular endothelial growth factor monoclonal antibody)],showed that overall survival and progression-free survival were significantly better with sorafenib. This combination therapy has become the new standard therapy for advanced HCC and has also attracted more attention in the treatment of HCC with anti-angiogenesis-immune combination therapy. Currently, the synergistic antitumor efficacy of this combination has been shown in many preclinical and clinical studies. In this review, we discuss the mechanism and clinical application of anti-angiogenics and immunotherapy in HCC, outline the relevant mechanism and rationality of the combined application of antiangiogenics and ICIs, and point out the existing challenges of the combination therapy.展开更多
Objective:To investigate the effect of Kanglaite injection combined with docetaxel in advanced esophageal cancer on tumor markers, angiogenesis and immune function in elderly patients.Method:A total of 130 patients wi...Objective:To investigate the effect of Kanglaite injection combined with docetaxel in advanced esophageal cancer on tumor markers, angiogenesis and immune function in elderly patients.Method:A total of 130 patients with advanced esophageal cancer admitted in our hospital from October 2014 to July 2017were selected and divided into two groups according to the time of admission, 65 cases in each group, set as observation group and control group, all patients were treated with conventional radiotherapy (cisplatin combined with 5-fluorouracil), the observation group was given Kanglaite injection combined with docetaxel on the basis of this, while the control group only was given docetaxel treatment, the treatment period was 6 weeks, tumor markers, VEGF and immune function of both group after treatment were compared.Result: After treatment, the levels of carbohydrate antigen 125 (CA125), carbohydrate antigen 19-9 (CA19-9) and carcino-embryonic antigen (CEA) in the observation group were lower than those in the control group, the difference was statistically significant;VEGF level in the observation group after treatment was lower than the control group, the difference was statistically significant;After treatment, the levels of CD3+, CD4+ and CD4+/CD8+ in the observation group were higher than those in the control group, while the levels of CD8+ in the observation group was lower than those in the control group, the difference was statistically significant.Conclusion: Kanglaite injection combined with docetaxel in the treatment of elderly patients with advanced esophageal cancer is better, effectively reducing the level of tumor markers and vascular endothelial growth factor, improve immune function, it isworthy of clinical application.展开更多
Colon cancer is the third most common malignancy and the fifth most frequent cause of death from neoplastic disease worldwide.At the time of diagnosis,more than 20%of patients already have metastatic disease.In the la...Colon cancer is the third most common malignancy and the fifth most frequent cause of death from neoplastic disease worldwide.At the time of diagnosis,more than 20%of patients already have metastatic disease.In the last 20 years,the natural course of the disease has changed due to major changes in the management of metastatic disease such as the advent of novel surgical and local therapy approaches as well as the introduction of novel chemotherapy drugs and targeted agents such as anti-epidermal growth factor receptor,anti-BRAF and antiangiogenics.Angiogenesis is a complex biological process of new vessel formation from existing ones and is an integral component of tumor progression supporting cancer cells to grow,proliferate and metastasize.Many molecules are involved in this proangiogenic process,such as vascular endothelial growth factor and its receptors on endothelial cells.A well-standardized methodology that is applied to assess angiogenesis in the tumor microenvironment is microvascular density by using immunohistochemistry with antibodies against endothelial CD31,CD34 and CD105 antigens.Even smaller molecules,such as the micro-RNAs,which are small non-coding RNAs,are being studied for their usefulness as surrogate biomarkers of angiogenesis and prognosis.In this review,we will discuss recent advances regarding the investigation of angiogenesis,the crosstalk between elements of the immune microenvironment and angiogenesis and how a disorganized tumor vessel network affects the trafficking of CD8+T cells in the tumor bed.Furthermore,we will present recent data from clinical trials that combine antiangiogenic therapies with immune checkpoint inhibitors in colorectal cancer.展开更多
Objective:To explore effect of Pemetrexed combined with cis-platinum chemotherapy on matrix metalloproteinase (MMPs), vascular esandothelial growth factor (VEGF), NK cells and immune function in patients with non-squa...Objective:To explore effect of Pemetrexed combined with cis-platinum chemotherapy on matrix metalloproteinase (MMPs), vascular esandothelial growth factor (VEGF), NK cells and immune function in patients with non-squamous non-small cell lung cancer.Method:A total of86 cases of non-squamous non-small cell lung cancer patients were divided into control group (n=44) and observation group (n=42), control group was given docetaxel combined cis-platinum chemotherapy, pemetrexed combined cis-platinum chemotherapy, was applied for observation group. Compared MMP-2, MMP-9, VEGF, NK cells and immune function level before and after treatment in both groups.Results: MMP-2, MMP-9, VEGF, NK cells, CD3+, CD4+, CD8+, CD4+/CD8+ level in both groups before treatment was no significant difference. After treatment, MMP-2, MMP-9, VEGF, CD8+level in both groups was significant lower than before treatment intra-group, and observation was lower than control group, there was significant difference. After treatment, NK cells, CD3+, CD4+, CD8+, CD4+/CD8+ level in both groups was increased dramatically than before treatment of intra-group, moreover, NK cells, CD3+, CD4+, CD8+, CD4+/CD8+level in observation group after treatment was obvious higher than in control group after treatment, there was significant difference.Conclusion:Pemetrexed combined with cis-platinum chemotherapy for non-squamous non-small cell lung cancer could effectively decrease serum MMPs, VEGF level and increase NK cell level, regulate immune function, with definite clinical significance.展开更多
文摘Objectives:To investigate the effect of Chinese herbal medicine"heche assisted preg-nancy recipe (HCAPR)" on estrogen receptor(ER), progesterone receptor (PR), pro-lifierating cell nuclear antigen(PCNA) and vascular endothelial growth factor (VEGF)in endometrium of infertile women.Methods: The S-P immunohistochemical assay was used to observe expression ofER, PR , PCNA and VEGF in late proliferative phase before and after the HCAPR treat-ment.Results: After the treatment, the expression of ER,PR,PCNA and VEGF in nucleiof glandular epithelium and stromal cells was significantly stronger (all P<0. 001) re-spectively than that before treatment , especially the expression of PCNA and VEGF.Conclusions: These results suggest that traditional Chinese medicine HCAPR oftonifying kidney and regulating menstruation increased the synthesis of ER,PR, PCNAand VEGF, which may promote normal growth and development of the endometrium ,improve the micro-environment of the endometrium, and enhance uterine receptivity.The evidence may provide theoretical basis for therapy infertility with Chinese herbalmedicine.
基金Supported by the Key Technologies Research and Development Program of Heilongjiang Province During the 9th Five-Year Plan Period,No.G99C 19-5
文摘AIM:To investigate the antiangiogenic effects of endostatin on colonic carcinoma cell line implanted in nude mice and its mechanism. METHODS:Nude mice underwent subcutaneous injection with LS-174t colonic carcinoma cell line to generate carcinoma and were randomly separated into two groups.Mice received injection of vehicle or endostatin every day for two weeks. After the tumor was harvested,the tumor volumes were determined,and the expressions of CD34,VEGF and FIk-1 were examined by immunohistochemical method. RESULTS:Tumor volume was significantly inhibited in the endostatin group(84.17%)and tumor weight was significantly inhibited in the endostatin group(0.197±0.049) compared to the control group(1.198±0.105)(F=22.56, P=0.001),microvessel density(MVD)was significantly decreased in the treated group(31.857±3.515)compared to the control group(100.143±4.290)(F=151.62,P<0.001). Furthermore,the expression of FIk-1 was significantly inhibited in the treated group(34.29%) ompared to the control group(8.57%)(X^2=13.745,P=0.001).However no significant decrease was observed in the expression of vascular endothelial growth factor(VEGF)between these two groups(X^2=0.119,P=0.730). CONCLUSION:Endostatin can inhibit tumor growth and angiogenesis by blocking Vegf/FIk-1 pathway.This experiment provides the theory basis for developing a new anti-carcinoma drug through studying the properties of anti-angiogenesis inhibitors.
文摘Objective: To investigate the expressions of vascular endothelial growth factor (VEGF) and proliferating cell nuclear antigen (Ki-67) in patients with rectal adenocarcinoma and their associations with neoadjuvant therapy. Methods: The expressions of Ki-67 and VEGF in 32 cases of rectal adenocarcinoma, including both pretreatment tumor biopsies and postoperative specimen, were detected by immunohistochemistry using specific antibodies, and were correlated with clinicopathological factors. Results: The intensity of VEGF staining was significantly correlated with lymph nodal metastasis (P =0.033), depth of tumor invasion (P =0.007) and tumor stage (P= 0.016), but not with histological types, tumor sizes, patients' ages and genders (P 〉 0.05). Low level of VEGF expression had significant correlation with the high sensitivity of response to neoadjuvant therapy (P = 0.016). The transient increase of VEGF expression could be seen after neoadjuvant therapy (P = 0.035). Ki-67 labeling index (Ki-67-LI) was significantly correlated with lymph node metastasis (P = 0.028), but not correlated to tumor sizes, patients' ages and genders (P 〉 0.05). Tumors with lower Ki-67-LI were more sensitive to neoadjuvant therapy (P = 0.032). The Ki-67 level decreased after neoadjuvant therapy, but no statistical significance was found (P 〉 0.05). Conclusion: Our results demonstrate that the expression of VEGF and Ki-67 in pretreatment rectal adenocarcinoma biopsies may be predictive of tumor response to neoadjuvant therapy.
文摘Purpose:To investigate the spatial and temporal regulation effect of vascular endothelial growth factor(VEGF)on human fetal choroid vascularization.Methods:The eyeballs of 54human fetuses from the 9th week to the40th week due to accidental abortion were studied by immunohistochemically staining for the expression of VEGF and proliferation cell nuclear antigen(PCNA).Results:(1)The distribution of VEGF expression in the retinal pigment epithelium(RPE)decreased with the increase of age,the peak of which was between the 9th and 14th week,(2)PCNAimmunoreactivity was localized within choriocapillaris endothe-lium,THe expression level decreased alone with fetus age,In this period the chori-ocapillaris endothelium kept proliferation,differentiation.canalization and remodelled to form the choroid vessels.(3)Statistically significant correlations were shown between the expression of VEGF in the PRE and that of PCNAin choriocapillaris endothelium(r=0.933,P<0.01).Conclusion:VEGF expression in PRE was positively involved in modulating human fetal choroid vascularization.Eye Science2000;16:11-14.
基金Supported by the National Natural Science Foundation of China,No.81502564,No.81972598the Natural Science Foundation of Zhejiang Province,No.LY16H160018,No.LY18H160001the scholarship from China Scholarship Council(CSC)under the Grant CSC,No.201706325003
文摘The dependence of tumor growth on neovascularization has become an important aspect of cancer biology.Tumor angiogenesis is one of the key mechanisms of tumorigenesis,growth and metastasis.The key events involved in this process are endothelial cell proliferation,migration,and vascular formation.Recent studies have revealed the importance of tumor-associated endothelial cells(TECs)in the development and progression of colorectal cancer(CRC),including epithelial proliferation,stem cell maintenance,angiogenesis,and immune remodeling.Decades of research have identified that the molecular basis of tumor angiogenesis includes vascular endothelial growth factors(VEGFs)and their receptor family,which are the main targets of antiangiogenesis therapy.VEGFs and their receptors play key roles in the pathology of angiogenesis,and their overexpression indicates poor prognosis in CRC.This article reviews the characteristics of the tumor vasculature and the role of TECs in different stages of CRC and immune remodeling.We also discuss the biological effects of VEGFs and their receptor family as angiogenesis regulators and emphasize the clinical implications of TECs in clinical treatment.
文摘Background:Pancreatic cancer is a malignant tumor of the gastrointestinal tract.Due to its insidious onset,most patients with newly diagnosed pancreatic cancer have missed the opportunity for radical surgery,which offers patients the best chance of survival.The 5-year survival rate of patients with pancreatic cancer can be improved with early diagnosis,and serum tumor makers are an inexpensive and convenient diagnostic tool that is widely used in the diagnosis of malignancies.Objective:To determine the diagnostic value of vascular endothelial growth factor(VEGF),carbohydrate antigen 19-9(CA 19-9),and carcinoembryonic antigen(CEA)in patients with pancreatic cancer and the risk factors of vascular invasion.Methods:An experimental group comprising 52 patients with pancreatic cancer admitted to our department from July 2021 to July 2022 and a control group comprising 21 patients with benign pancreatic diseases during the same period were included in our study.Their serum VEGF,CA 19-9,and CEA levels were detected and compared between the two groups,and the correlation between the three markers in the invaded vessel and non-invaded vessel groups was investigated.The diagnostic value of a single tumor marker and in combination for pancreatic cancer was analyzed,and the three tumor marker levels of the experimental group in different pathological characteristics were detected and compared.Results:The experimental group had higher serum VEGF,CA 19-9,and CEA levels than the control group(P<0.05).Through a receiver operating characteristic(ROC)curve analysis,the combined detection had the highest value for the diagnosis of pancreatic cancer,in which the area under the curve(AUC)was 0.9158(95%CI:0.8415-0.9900),while the sensitivity and specificity were 76.19%and 98.08%,respectively.Serum VEGF and CA 19-9 levels were higher in stage Ⅲ-Ⅳ pancreatic cancer patients and those with tumor metastasis compared with stage Ⅰ-Ⅱ patients and those without metastasis(P<0.05),respectively.Binary logistic regression analysis was performed to determine the risk factors of vascular invasion in pancreatic cancer,and the results showed that only serum VEGF was a risk factor(P<0.05),OR(95%CI):1.001-1.006.Conclusion:Patients with pancreatic cancer have significantly higher serum VEGF,CA 19-9,and CEA levels,and the combined detection of tumor markers is of high clinical value in its diagnosis.In addition,serum VEGF is an independent risk factor of vascular invasion in pancreatic cancer,which can predict vascular invasion to a certain extent.
基金Supported by Sino-British International Cooperation Project。
文摘OBJECTIVE: To investigate the protective effects of electroacupuncture and LGNHFD on cerebral ischemia-reperfusion injury, and their effects on the expression of cluster of differentiation 34(CD 34), vascular endothelial growth factor(VEGF), and basic fibroblast growth factor(b FGF) in the peripheral tissue of the cerebral ischemic semi-dark zone in rats.The influence and mechanism of expression.METHODS: Healthy male Sprague-Dawley rats were randomly divided into the sham operation group, model group, Traditional Chinese Medicine (TCM) group, electroacupuncture group, and acupuncture group. The cerebral ischemia model was prepared by middle artery occlusion. The electroacupuncture and TCM groups received electroacupuncture at the "Neiguan(PC6)", "Baihui(GV20)", and "Renzhong(GV26)" acupoints from 4 h after modeling, once daily for 14 d. After modeling,the acupuncture and TCM groups were administered LGNHFD once daily for 14 d. After treatment,the infarct volume and regional cerebral blood flow(r CBF) were measured in each group, the expression of CD34 in the surrounding ischemic penumbra was determined using immunohistochemistry,and the expression of angiogenesis-related factors in the ischemic hemisphere was detected by western blot.RESULTS: Compared with the sham operation group, r CBF was significantly decreased(P < 0.01)and cerebral infarction volume was significantly increased(P < 0.01) in the model group at four time points(5 min and 3, 7, and 14 d after modeling). At three postoperative time points(3, 7, and 14 d), the number of CD34 + cells in the model group were significantly increased(P < 0.01), and the relative expression levels of VEGF, b FGF, and CD34+ in the ischemic hemisphere were significantly increased(P < 0.01, P < 0.05). Compared with the model group, the r CBF of the acupuncture group was significantly increased at 3, 7, and 14 d after intervention(P < 0.01), while the r CBF of the electroacupuncture and TCM groups was significantly increased at 7 and 14 d after intervention(P < 0.01).After 3, 7, and 14 d of intervention, infarct volume was significantly reduced(P < 0.01), the number of CD34 + cells was significantly increased(P < 0.01,P < 0.05), and the relative expression levels of VEGF,b FGF, and CD34 in the ischemic hemisphere were significantly increased(P < 0.01, P < 0.05). Compared with the electroacupuncture and TCM groups, the r CBF of the acupuncture group was significantly increased(P < 0.01), the infarct volume was significantly reduced(P < 0.01), and the relative expression levels of VEGF, b FGF, and CD34 were significantly increased(P < 0.05, P < 0.01) after 3, 7,and 14 d of intervention.CONCLUSION: Acupuncture therapy is superior to simple drug and electroacupuncture therapy for reducing infarct volume, increasing r CBF and CD34 expression in cells, and promoting capillary regeneration in rats with cerebral ischemia. This may be related to the increased expression of VEGF, b FGF,and CD34 — which are related to cerebrovascular neovascularization — in the ischemic hemispheres of such rats.
基金Guangdong Basic and Applied Basic Research Foundation,No.2019A1515110654the National Natural Science Foundation of China,No.82103448China Organ Transplantation Development Foundation,No.YZLC-2021-003.
文摘The disease burden related to hepatocellular carcinoma(HCC) is increasing. Most HCC patients are diagnosed at the advanced stage and multikinase inhibitors have been the only treatment choice for them. Recently, the approval of immune checkpoint inhibitors(ICIs) has provided a new therapeutic strategy for HCC. It is noteworthy that the positive outcomes of the phase Ⅲ clinical trial IMBrave150 [atezolizumab(anti-programmed cell death ligand 1 antibody) combined with bevacizumab(anti-vascular endothelial growth factor monoclonal antibody)],showed that overall survival and progression-free survival were significantly better with sorafenib. This combination therapy has become the new standard therapy for advanced HCC and has also attracted more attention in the treatment of HCC with anti-angiogenesis-immune combination therapy. Currently, the synergistic antitumor efficacy of this combination has been shown in many preclinical and clinical studies. In this review, we discuss the mechanism and clinical application of anti-angiogenics and immunotherapy in HCC, outline the relevant mechanism and rationality of the combined application of antiangiogenics and ICIs, and point out the existing challenges of the combination therapy.
文摘Objective:To investigate the effect of Kanglaite injection combined with docetaxel in advanced esophageal cancer on tumor markers, angiogenesis and immune function in elderly patients.Method:A total of 130 patients with advanced esophageal cancer admitted in our hospital from October 2014 to July 2017were selected and divided into two groups according to the time of admission, 65 cases in each group, set as observation group and control group, all patients were treated with conventional radiotherapy (cisplatin combined with 5-fluorouracil), the observation group was given Kanglaite injection combined with docetaxel on the basis of this, while the control group only was given docetaxel treatment, the treatment period was 6 weeks, tumor markers, VEGF and immune function of both group after treatment were compared.Result: After treatment, the levels of carbohydrate antigen 125 (CA125), carbohydrate antigen 19-9 (CA19-9) and carcino-embryonic antigen (CEA) in the observation group were lower than those in the control group, the difference was statistically significant;VEGF level in the observation group after treatment was lower than the control group, the difference was statistically significant;After treatment, the levels of CD3+, CD4+ and CD4+/CD8+ in the observation group were higher than those in the control group, while the levels of CD8+ in the observation group was lower than those in the control group, the difference was statistically significant.Conclusion: Kanglaite injection combined with docetaxel in the treatment of elderly patients with advanced esophageal cancer is better, effectively reducing the level of tumor markers and vascular endothelial growth factor, improve immune function, it isworthy of clinical application.
文摘Colon cancer is the third most common malignancy and the fifth most frequent cause of death from neoplastic disease worldwide.At the time of diagnosis,more than 20%of patients already have metastatic disease.In the last 20 years,the natural course of the disease has changed due to major changes in the management of metastatic disease such as the advent of novel surgical and local therapy approaches as well as the introduction of novel chemotherapy drugs and targeted agents such as anti-epidermal growth factor receptor,anti-BRAF and antiangiogenics.Angiogenesis is a complex biological process of new vessel formation from existing ones and is an integral component of tumor progression supporting cancer cells to grow,proliferate and metastasize.Many molecules are involved in this proangiogenic process,such as vascular endothelial growth factor and its receptors on endothelial cells.A well-standardized methodology that is applied to assess angiogenesis in the tumor microenvironment is microvascular density by using immunohistochemistry with antibodies against endothelial CD31,CD34 and CD105 antigens.Even smaller molecules,such as the micro-RNAs,which are small non-coding RNAs,are being studied for their usefulness as surrogate biomarkers of angiogenesis and prognosis.In this review,we will discuss recent advances regarding the investigation of angiogenesis,the crosstalk between elements of the immune microenvironment and angiogenesis and how a disorganized tumor vessel network affects the trafficking of CD8+T cells in the tumor bed.Furthermore,we will present recent data from clinical trials that combine antiangiogenic therapies with immune checkpoint inhibitors in colorectal cancer.
文摘Objective:To explore effect of Pemetrexed combined with cis-platinum chemotherapy on matrix metalloproteinase (MMPs), vascular esandothelial growth factor (VEGF), NK cells and immune function in patients with non-squamous non-small cell lung cancer.Method:A total of86 cases of non-squamous non-small cell lung cancer patients were divided into control group (n=44) and observation group (n=42), control group was given docetaxel combined cis-platinum chemotherapy, pemetrexed combined cis-platinum chemotherapy, was applied for observation group. Compared MMP-2, MMP-9, VEGF, NK cells and immune function level before and after treatment in both groups.Results: MMP-2, MMP-9, VEGF, NK cells, CD3+, CD4+, CD8+, CD4+/CD8+ level in both groups before treatment was no significant difference. After treatment, MMP-2, MMP-9, VEGF, CD8+level in both groups was significant lower than before treatment intra-group, and observation was lower than control group, there was significant difference. After treatment, NK cells, CD3+, CD4+, CD8+, CD4+/CD8+ level in both groups was increased dramatically than before treatment of intra-group, moreover, NK cells, CD3+, CD4+, CD8+, CD4+/CD8+level in observation group after treatment was obvious higher than in control group after treatment, there was significant difference.Conclusion:Pemetrexed combined with cis-platinum chemotherapy for non-squamous non-small cell lung cancer could effectively decrease serum MMPs, VEGF level and increase NK cell level, regulate immune function, with definite clinical significance.