AIM: To explore the effect of Gui Zhi decoction on enteric mucosal immune in type Ⅱ collagen-induced arthritis (CIA)in DBA mice.METHODS: Eighty DBA/1, weighing 18-22 g, were randomly divided into four groups with 20 ...AIM: To explore the effect of Gui Zhi decoction on enteric mucosal immune in type Ⅱ collagen-induced arthritis (CIA)in DBA mice.METHODS: Eighty DBA/1, weighing 18-22 g, were randomly divided into four groups with 20 in each group:control group, CIA group, treatment groups at high dosage and low dosage (GZH and GZL). CIA was induced by immunization with type Ⅱ collagen (CⅡ) emulsified with equal complete adjuvant at 0.1 mg CⅡ each mouse. Blood lymphocyte suspension was screened for CD4 and CD8 expression using a flow cytometry, the CD4 and CD8 and secretory IgA (sIgA)-positive cells in enteric lamina propria tested with immunohistochemical staining. Tumor necrosis factor-alpha (TNF-α), interleukin-L (IL-1)-β, and IL-6 concentrations in serum were assayed with RIA.RESULTS: Gui Zhi decoction can lower the arthritic scores and decrease the occurrence of arthritis. The CD4, CD8,and sIgA-positive cells in CIA mice are less than in control mice, and in Gui Zhi decoction at high dosage could restore the lowered CD4- and CD8-positive cells in lamina propria,and at both high and low dosages could increase the lowered sIgA-positive cells in lamina propria, even still lower than in normal mice. In periphery, the CD4 cells in periphery are higher in CIA mice than in control mice,and Gui Zhi decoction at high and low dosages could decrease the CD4 and CD8 cells. Also, Gui Zhi decoction at high dosage could decrease the IL-6 and TNF-αconcentration in serum.CONCLUSION: Gui Zhi decoction can lower the arthritic scores and decrease the incidence of CIA in mice, and the mechanism is in part regulating enteric mucosal immune.展开更多
Qi-Yu-San-Long decoction(QYSLD)is a traditional Chinese medicine that has been clinically used in the treatment of non-small-cell lung cancer(NSCLC)for more than 20 years.However,to date,metabolicrelated studies on QY...Qi-Yu-San-Long decoction(QYSLD)is a traditional Chinese medicine that has been clinically used in the treatment of non-small-cell lung cancer(NSCLC)for more than 20 years.However,to date,metabolicrelated studies on QYSLD have not been performed.In this study,a post-targeted screening strategy based on ultra-performance liquid chromatography coupled with quadrupole time-of-flight full information tandem mass spectrometry(UPLC-QTOF-MS^(E))was developed to identify QYSLD-related xenobiotics in rat urine.The chemical compound database of QYSLD constituents was established from previous research,and metabolites related to these compounds were predicted in combination with their possible metabolic pathways.The metabolites were identified by extracted ion chromatograms using predicted m/z values as well as retention time,excimer ions,and fragmentation behavior.Overall,85 QYSLD-related xenobiotics(20 prototype compounds and 65 metabolites)were characterized from rat urine.The main metabolic reactions and elimination features of QYSLD included oxidation,reduction,decarboxylation,hydrolysis,demethylation,glucuronidation,sulfation,methylation,deglycosylation,acetylation,and associated combination reactions.Of the identified molecules,14 prototype compounds and 58 metabolites were slowly eliminated,thus accumulating in vivo over an extended period,while five prototypes and two metabolites were present in vivo for a short duration.Furthermore,one prototype and five metabolites underwent the process of“appearing-disappearing-reappearing”in vivo.Overall,the metabolic profile and characteristics of QYSLD in rat urine were determined,which is useful in elucidating the active components of the decoction in vivo,thus providing the basis for studying its mechanism of action.展开更多
ObjectiveTo provide comprehensive evidence for the anti-cancer cachexia effect of Jianpi Decoction(JP)and to explore its mechanism of anti-cancer cachexia.MethodsA mouse model of colon cancer(CT26)-induced cancer cach...ObjectiveTo provide comprehensive evidence for the anti-cancer cachexia effect of Jianpi Decoction(JP)and to explore its mechanism of anti-cancer cachexia.MethodsA mouse model of colon cancer(CT26)-induced cancer cachexia(CC)was used to investigate the anti-CC effect of JP combined with medroxyprogesterone acetate(MPA).Thirty-six mice were equally divided into 6 groups:normal control,CC,MPA(100 mg·kg^(−1)·d^(−1)),MPA+low-dose(20 mg·kg^(−1)·d^(−1))JP(L-JP),MPA+medium-dose(30 mg·kg^(−1)·d^(−1))JP(M-JP),and MPA+high-dose(40 mg·kg^(−1)·d^(−1))JP(H-JP)groups.After successful modeling,the mice were administered by gavage for 11 d.The body weight and tumor volume were measured and recorded every 2 d starting on the 8th day after implantation.The liver,heart,spleen,lung,kidney,tumor and gastrocnemius muscle of mice were collected and weighed.The pathological changes of the tumor was observed,and the cross-sectional area of the gastrocnemius muscle was calculated.The protein expressions of STAT3 and E3 ubiquitinase in the gastrocnemius muscle were measured by Western blot.In addition,an in vitro C2C12 myotube formation model was established to investigate the role of JP in hindering dexamethasone-induced muscle atrophy.In vitro experiments were divided into control,model,and JP serum groups.After 2-d administration,microscopic photographs were taken and myotube diameters were calculated.Western blot was performed to measure the protein expressions of STAT3 and E3 ubiquitinase.ResultsJP combined with MPA restored tumor-induced weight loss(P<0.05,vs.CC)and muscle fiber size(P<0.01,vs.CC).Mechanistically,JP reduced the expression of atrophy-related proteins MuRF1 and MAFbx in tumor-induced muscle atrophy in vivo(P<0.05,vs.CC).In addition,JP reduced the expression of atrophy-related proteins MuRF1 and MAFbx and p-STAT3 phosphorylation(P<0.05 or P<0.01 vs.model group)in C2C12 myotubes treated with dexamethasone in vitro.ConclusionsAdministration of JP combined with MPA restores tumor-induced cachexia conditions.In addition,the profound effect of JP combined with MPA on tumor-induced cachexia may be due to its inhibition of muscle proteolysis(E3 ubiquitinase system).展开更多
基金Supported by the project of National Natural Science Foundation of China, No. 30171133 and 39870952
文摘AIM: To explore the effect of Gui Zhi decoction on enteric mucosal immune in type Ⅱ collagen-induced arthritis (CIA)in DBA mice.METHODS: Eighty DBA/1, weighing 18-22 g, were randomly divided into four groups with 20 in each group:control group, CIA group, treatment groups at high dosage and low dosage (GZH and GZL). CIA was induced by immunization with type Ⅱ collagen (CⅡ) emulsified with equal complete adjuvant at 0.1 mg CⅡ each mouse. Blood lymphocyte suspension was screened for CD4 and CD8 expression using a flow cytometry, the CD4 and CD8 and secretory IgA (sIgA)-positive cells in enteric lamina propria tested with immunohistochemical staining. Tumor necrosis factor-alpha (TNF-α), interleukin-L (IL-1)-β, and IL-6 concentrations in serum were assayed with RIA.RESULTS: Gui Zhi decoction can lower the arthritic scores and decrease the occurrence of arthritis. The CD4, CD8,and sIgA-positive cells in CIA mice are less than in control mice, and in Gui Zhi decoction at high dosage could restore the lowered CD4- and CD8-positive cells in lamina propria,and at both high and low dosages could increase the lowered sIgA-positive cells in lamina propria, even still lower than in normal mice. In periphery, the CD4 cells in periphery are higher in CIA mice than in control mice,and Gui Zhi decoction at high and low dosages could decrease the CD4 and CD8 cells. Also, Gui Zhi decoction at high dosage could decrease the IL-6 and TNF-αconcentration in serum.CONCLUSION: Gui Zhi decoction can lower the arthritic scores and decrease the incidence of CIA in mice, and the mechanism is in part regulating enteric mucosal immune.
基金supported by grants from the National Natural Science Foundation of China(Grant No.:81903765)the Open Fund Project of Key Laboratory of Traditional Chinese Medicine for Prevention and Treatment of Major Pulmonary Diseases of the Anhui Provincial Department of Education(Grant No.:JYTKF2020-5)the Graduate Science and Technology Innovation Fund project of Anhui University of Chinese Medicine(Grant No.:2020YB06).
文摘Qi-Yu-San-Long decoction(QYSLD)is a traditional Chinese medicine that has been clinically used in the treatment of non-small-cell lung cancer(NSCLC)for more than 20 years.However,to date,metabolicrelated studies on QYSLD have not been performed.In this study,a post-targeted screening strategy based on ultra-performance liquid chromatography coupled with quadrupole time-of-flight full information tandem mass spectrometry(UPLC-QTOF-MS^(E))was developed to identify QYSLD-related xenobiotics in rat urine.The chemical compound database of QYSLD constituents was established from previous research,and metabolites related to these compounds were predicted in combination with their possible metabolic pathways.The metabolites were identified by extracted ion chromatograms using predicted m/z values as well as retention time,excimer ions,and fragmentation behavior.Overall,85 QYSLD-related xenobiotics(20 prototype compounds and 65 metabolites)were characterized from rat urine.The main metabolic reactions and elimination features of QYSLD included oxidation,reduction,decarboxylation,hydrolysis,demethylation,glucuronidation,sulfation,methylation,deglycosylation,acetylation,and associated combination reactions.Of the identified molecules,14 prototype compounds and 58 metabolites were slowly eliminated,thus accumulating in vivo over an extended period,while five prototypes and two metabolites were present in vivo for a short duration.Furthermore,one prototype and five metabolites underwent the process of“appearing-disappearing-reappearing”in vivo.Overall,the metabolic profile and characteristics of QYSLD in rat urine were determined,which is useful in elucidating the active components of the decoction in vivo,thus providing the basis for studying its mechanism of action.
基金Supported by Guangdong Key Lab of Traditional Chinese Medicine Information Technology(No.2021B1212040007)“3030”Project of Shenzhen Hospital of Traditional Chinese Medicine in 2021。
文摘ObjectiveTo provide comprehensive evidence for the anti-cancer cachexia effect of Jianpi Decoction(JP)and to explore its mechanism of anti-cancer cachexia.MethodsA mouse model of colon cancer(CT26)-induced cancer cachexia(CC)was used to investigate the anti-CC effect of JP combined with medroxyprogesterone acetate(MPA).Thirty-six mice were equally divided into 6 groups:normal control,CC,MPA(100 mg·kg^(−1)·d^(−1)),MPA+low-dose(20 mg·kg^(−1)·d^(−1))JP(L-JP),MPA+medium-dose(30 mg·kg^(−1)·d^(−1))JP(M-JP),and MPA+high-dose(40 mg·kg^(−1)·d^(−1))JP(H-JP)groups.After successful modeling,the mice were administered by gavage for 11 d.The body weight and tumor volume were measured and recorded every 2 d starting on the 8th day after implantation.The liver,heart,spleen,lung,kidney,tumor and gastrocnemius muscle of mice were collected and weighed.The pathological changes of the tumor was observed,and the cross-sectional area of the gastrocnemius muscle was calculated.The protein expressions of STAT3 and E3 ubiquitinase in the gastrocnemius muscle were measured by Western blot.In addition,an in vitro C2C12 myotube formation model was established to investigate the role of JP in hindering dexamethasone-induced muscle atrophy.In vitro experiments were divided into control,model,and JP serum groups.After 2-d administration,microscopic photographs were taken and myotube diameters were calculated.Western blot was performed to measure the protein expressions of STAT3 and E3 ubiquitinase.ResultsJP combined with MPA restored tumor-induced weight loss(P<0.05,vs.CC)and muscle fiber size(P<0.01,vs.CC).Mechanistically,JP reduced the expression of atrophy-related proteins MuRF1 and MAFbx in tumor-induced muscle atrophy in vivo(P<0.05,vs.CC).In addition,JP reduced the expression of atrophy-related proteins MuRF1 and MAFbx and p-STAT3 phosphorylation(P<0.05 or P<0.01 vs.model group)in C2C12 myotubes treated with dexamethasone in vitro.ConclusionsAdministration of JP combined with MPA restores tumor-induced cachexia conditions.In addition,the profound effect of JP combined with MPA on tumor-induced cachexia may be due to its inhibition of muscle proteolysis(E3 ubiquitinase system).
