目的:分析芒果苷(mangiferin)联合硼替佐米对人Burkitt淋巴瘤Raji细胞增殖、侵袭、凋亡和自噬的作用及对CXC趋化因子受体家族(CXCR)表达的影响,并探究其间存在的分子机制,为Burkitt淋巴瘤基础研究与临床提供科学依据。方法:采用不同浓度...目的:分析芒果苷(mangiferin)联合硼替佐米对人Burkitt淋巴瘤Raji细胞增殖、侵袭、凋亡和自噬的作用及对CXC趋化因子受体家族(CXCR)表达的影响,并探究其间存在的分子机制,为Burkitt淋巴瘤基础研究与临床提供科学依据。方法:采用不同浓度Mangiferin、硼替佐米单药或联合干预Raji细胞,利用CCK-8法检测细胞增殖,Transwell小室法检测细胞侵袭能力,Annexin V/PI双染流式细胞术检测细胞凋亡,Western blot检测凋亡、自噬及Akt/m TOR通路蛋白表达情况,实时荧光定量PCR检测CXCR家族的表达变化。结果:不同浓度Mangiferin干预Raji细胞不同时间后,可抑制Raji细胞活力,且呈浓度及时间依赖性(r=-0.682,r=-0.836);与单药组相比,Mangiferin联合硼替佐米干预Raji细胞时,细胞增殖与侵袭能力显著下降、凋亡水平显著升高(P<0.01)。Mangiferin联合硼替佐米干预Raji细胞后,可上调促凋亡蛋白Bax表达并显著下调抗凋亡蛋白Bcl-2的表达,同时亦使Caspase-3水解活化,继而诱导Raji细胞发生凋亡。Mangiferin联合硼替佐米干预Raji细胞后可上调LC3Ⅱ蛋白的表达,且细胞中LC3Ⅱ/LC3Ⅰ比值较单药或对照组显著上调(P<0.01)。Mangiferin联合硼替佐米可显著抑制Akt和m TOR的磷酸化水平,通过抑制Akt/m TOR通路来使Raji细胞增殖及侵袭受抑,并诱导细胞发生自噬与凋亡。Mangiferin及硼替佐米单药干预Raji细胞后,可下调CXCR4、CXCR7 m RNA的表达,当两药联合时CXCR4、CXCR7 m RNA表达下调更为显著(P<0.01)。Mangiferin单药或联合硼替佐米干预Raji细胞后CXCR5 m RNA表达无显著变化(P>0.05),但两药联合时可使CXCR3表达下调(P<0.05)。结论:Mangiferin联合硼替佐米能协同抑制Raji细胞增殖、侵袭,并诱导其发生自噬与凋亡,机制可能与抑制Akt/m TOR信号通路并通过下调抗凋亡蛋白Bcl-2和上调促凋亡蛋白Bax以及使CXCR家族表达受抑等有关。展开更多
Background: Burkitt’s lymphoma of the testis (TBL) is a rare and extremely aggressive malignant usually diagnosed in front of a testicular mass. We describe an interesting single case of TBL managed by a combined mul...Background: Burkitt’s lymphoma of the testis (TBL) is a rare and extremely aggressive malignant usually diagnosed in front of a testicular mass. We describe an interesting single case of TBL managed by a combined multimodal approach with a review of the literature. Case Report: A patient aged 69-year-old male, newly hypertensive, who presented with a twelve-month history of right testis progressive painful scrotal swelling, which worsens following a motorbike accident. Clinical examination revealed a large tender mass in an erythematous right scrotal bursa. A scrotal ultrasound showed a right heterogenous intra-testicular mass. The patient underwent unilateral (right) radical orchiectomy. Histopathological examination revealed presence of monomorphic lymphoid cells, with moderate to increased size, dissociated inconstantly by macrophages consistent with a Burkitt’s-like non-Hodgkin Lymphoma. After surgery, the patient was transferred to oncologist for adjuvant chemotherapy. Conclusion: A testicular mass is a usual circumstance for the discovery of a primary tumour of the testicle. Burkitt’s testicular lymphoma is a rare tumour whose diagnosis is based on histological findings. There are non-consensual etiological or predisposing factors. The treatment depends imperatively on the stage of the disease. Therapeutic modalities relay on in surgical excision, chemotherapy and radiation therapy but the accurate procedures are not standardized.展开更多
BACKGROUND Burkitt lymphoma(BL)is an exceptionally aggressive malignant neoplasm that arises from either the germinal center or post-germinal center B cells.Patients with BL often present with rapid tumor growth and r...BACKGROUND Burkitt lymphoma(BL)is an exceptionally aggressive malignant neoplasm that arises from either the germinal center or post-germinal center B cells.Patients with BL often present with rapid tumor growth and require high-intensity multidrug therapy combined with adequate intrathecal chemotherapy prophylaxis,however,a standard treatment program for BL has not yet been established.It is important to identify biomarkers for predicting the prognosis of BLs and discriminating patients who might benefit from the therapy.Microarray data and sequencing information from public databases could offer opportunities for the discovery of new diagnostic or therapeutic targets.AIM To identify hub genes and perform gene ontology(GO)and survival analysis in BL.METHODS Gene expression profiles and clinical traits of BL patients were collected from the Gene Expression Omnibus database.Weighted gene co-expression network analysis(WGCNA)was applied to construct gene co-expression modules,and the cytoHubba tool was used to find the hub genes.Then,the hub genes were analyzed using GO and Kyoto Encyclopedia of Genes and Genomes analysis.Additionally,a Protein-Protein Interaction network and a Genetic Interaction network were constructed.Prognostic candidate genes were identified through overall survival analysis.Finally,a nomogram was established to assess the predictive value of hub genes,and drug-gene interactions were also constructed.RESULTS In this study,we obtained 8 modules through WGCNA analysis,and there was a significant correlation between the yellow module and age.Then we identified 10 hub genes(SRC,TLR4,CD40,STAT3,SELL,CXCL10,IL2RA,IL10RA,CCR7 and FCGR2B)by cytoHubba tool.Within these hubs,two genes were found to be associated with OS(CXCL10,P=0.029 and IL2RA,P=0.0066)by survival analysis.Additionally,we combined these two hub genes and age to build a nomogram.Moreover,the drugs related to IL2RA and CXCL10 might have a potential therapeutic role in relapsed and refractory BL.CONCLUSION From WGCNA and survival analysis,we identified CXCL10 and IL2RA that might be prognostic markers for BL.展开更多
Adult intussusception is rare, highly associated with a malignant lead point, and often requires emergent surgical management. We report the case of a 44-year-old male who presented with generalized abdominal pain and...Adult intussusception is rare, highly associated with a malignant lead point, and often requires emergent surgical management. We report the case of a 44-year-old male who presented with generalized abdominal pain and was found to have early ileocolic intussusception secondary to a large ileocecal mass. Biopsies of the mass and an enlarged cardiophrenic lymph node, as well as pleural fluid cytology were all consistent with Burkitt lymphoma (BL). Curiously, the patient’s abdominal exam was reassuring, and the intussusception and malignant bowel obstruction resolved over 36 hours with conservative management alone. With a Burkitt lymphoma international prognostic index (BL-IPI) score of 2, the patient proceeded to treatment with combination chemoimmunotherapy and attained a complete response after four cycles. There was no bowel perforation or recurrent intussusception throughout treatment. Thus, this report marks the first reported case of adult BL-associated intussusception to resolve with non-invasive management and establishes a precedent for conservative management in select patients.展开更多
目的:探讨成人原发性胃肠道Burkitt样淋巴瘤的流行病学、临床病理特点、诊断和治疗.方法:利用韩国延世大学图书馆平台在Medline/Pub Med、Web of Science、Directory of Open Access Journals(DOAJ)、Springer Link等15家英文文献数据...目的:探讨成人原发性胃肠道Burkitt样淋巴瘤的流行病学、临床病理特点、诊断和治疗.方法:利用韩国延世大学图书馆平台在Medline/Pub Med、Web of Science、Directory of Open Access Journals(DOAJ)、Springer Link等15家英文文献数据库和中国知网中文期刊全文数据库中检索1995年以来发表的符合纳入条件的相关文献,共获得来自6篇文献的6例成人原发性胃肠道Burkitt样淋巴瘤的患者资料.结果:成人原发性胃肠道Burkitt样淋巴瘤主要分布在东亚的日本和中国(4例,66.7%);6例患者均为男性,平均年龄57.6岁;2例发生于回盲部,1例发生于胃,1例发生于结肠肝曲,1例发生于末端回肠,还有1例在胃和小肠同时发生;因发现腹部肿块就诊者4例,伴随B症状:体质量减轻4例;乏力2例;所有患者均行消化道内镜检查,行计算机断层扫描(computed tomography,CT)检查者5例,行B超检查者3例;行手术治疗者4例,行联合化疗者5例,行手术+术后化疗者3例;1例患者在1年内死亡;最长1例患者随访5年仍存活;6例患者中行CD20检测者4例,均为阳性;行C D10检测者6例,4例为阳性;行K i-67检测者3例,均为阳性;行B淋巴细胞瘤-2(B-cell lymphoma-2,Bcl-2)检测者3例,均为阴性;行CD23检测者2例,均为阴性;行CD5检测者2例,均为阴性.结论:成人原发性胃肠道Burkitt样淋巴瘤临床罕见,属于高度恶性的非霍奇金淋巴瘤,进展快,死亡率高.其临床表现缺乏特异性,在进行临床干预治疗之前,建议行全面的检查以明确诊断,最终诊断仍依赖于细针穿刺活组织检查或手术切除病理检查.治疗上应在诊断明确后尽早实施外科手术及术后的多药联合辅助化疗.临床医师应该提高对本病的认识,重视该病的临床诊治,以改善患者的预后.展开更多
文摘目的:分析芒果苷(mangiferin)联合硼替佐米对人Burkitt淋巴瘤Raji细胞增殖、侵袭、凋亡和自噬的作用及对CXC趋化因子受体家族(CXCR)表达的影响,并探究其间存在的分子机制,为Burkitt淋巴瘤基础研究与临床提供科学依据。方法:采用不同浓度Mangiferin、硼替佐米单药或联合干预Raji细胞,利用CCK-8法检测细胞增殖,Transwell小室法检测细胞侵袭能力,Annexin V/PI双染流式细胞术检测细胞凋亡,Western blot检测凋亡、自噬及Akt/m TOR通路蛋白表达情况,实时荧光定量PCR检测CXCR家族的表达变化。结果:不同浓度Mangiferin干预Raji细胞不同时间后,可抑制Raji细胞活力,且呈浓度及时间依赖性(r=-0.682,r=-0.836);与单药组相比,Mangiferin联合硼替佐米干预Raji细胞时,细胞增殖与侵袭能力显著下降、凋亡水平显著升高(P<0.01)。Mangiferin联合硼替佐米干预Raji细胞后,可上调促凋亡蛋白Bax表达并显著下调抗凋亡蛋白Bcl-2的表达,同时亦使Caspase-3水解活化,继而诱导Raji细胞发生凋亡。Mangiferin联合硼替佐米干预Raji细胞后可上调LC3Ⅱ蛋白的表达,且细胞中LC3Ⅱ/LC3Ⅰ比值较单药或对照组显著上调(P<0.01)。Mangiferin联合硼替佐米可显著抑制Akt和m TOR的磷酸化水平,通过抑制Akt/m TOR通路来使Raji细胞增殖及侵袭受抑,并诱导细胞发生自噬与凋亡。Mangiferin及硼替佐米单药干预Raji细胞后,可下调CXCR4、CXCR7 m RNA的表达,当两药联合时CXCR4、CXCR7 m RNA表达下调更为显著(P<0.01)。Mangiferin单药或联合硼替佐米干预Raji细胞后CXCR5 m RNA表达无显著变化(P>0.05),但两药联合时可使CXCR3表达下调(P<0.05)。结论:Mangiferin联合硼替佐米能协同抑制Raji细胞增殖、侵袭,并诱导其发生自噬与凋亡,机制可能与抑制Akt/m TOR信号通路并通过下调抗凋亡蛋白Bcl-2和上调促凋亡蛋白Bax以及使CXCR家族表达受抑等有关。
文摘Background: Burkitt’s lymphoma of the testis (TBL) is a rare and extremely aggressive malignant usually diagnosed in front of a testicular mass. We describe an interesting single case of TBL managed by a combined multimodal approach with a review of the literature. Case Report: A patient aged 69-year-old male, newly hypertensive, who presented with a twelve-month history of right testis progressive painful scrotal swelling, which worsens following a motorbike accident. Clinical examination revealed a large tender mass in an erythematous right scrotal bursa. A scrotal ultrasound showed a right heterogenous intra-testicular mass. The patient underwent unilateral (right) radical orchiectomy. Histopathological examination revealed presence of monomorphic lymphoid cells, with moderate to increased size, dissociated inconstantly by macrophages consistent with a Burkitt’s-like non-Hodgkin Lymphoma. After surgery, the patient was transferred to oncologist for adjuvant chemotherapy. Conclusion: A testicular mass is a usual circumstance for the discovery of a primary tumour of the testicle. Burkitt’s testicular lymphoma is a rare tumour whose diagnosis is based on histological findings. There are non-consensual etiological or predisposing factors. The treatment depends imperatively on the stage of the disease. Therapeutic modalities relay on in surgical excision, chemotherapy and radiation therapy but the accurate procedures are not standardized.
文摘BACKGROUND Burkitt lymphoma(BL)is an exceptionally aggressive malignant neoplasm that arises from either the germinal center or post-germinal center B cells.Patients with BL often present with rapid tumor growth and require high-intensity multidrug therapy combined with adequate intrathecal chemotherapy prophylaxis,however,a standard treatment program for BL has not yet been established.It is important to identify biomarkers for predicting the prognosis of BLs and discriminating patients who might benefit from the therapy.Microarray data and sequencing information from public databases could offer opportunities for the discovery of new diagnostic or therapeutic targets.AIM To identify hub genes and perform gene ontology(GO)and survival analysis in BL.METHODS Gene expression profiles and clinical traits of BL patients were collected from the Gene Expression Omnibus database.Weighted gene co-expression network analysis(WGCNA)was applied to construct gene co-expression modules,and the cytoHubba tool was used to find the hub genes.Then,the hub genes were analyzed using GO and Kyoto Encyclopedia of Genes and Genomes analysis.Additionally,a Protein-Protein Interaction network and a Genetic Interaction network were constructed.Prognostic candidate genes were identified through overall survival analysis.Finally,a nomogram was established to assess the predictive value of hub genes,and drug-gene interactions were also constructed.RESULTS In this study,we obtained 8 modules through WGCNA analysis,and there was a significant correlation between the yellow module and age.Then we identified 10 hub genes(SRC,TLR4,CD40,STAT3,SELL,CXCL10,IL2RA,IL10RA,CCR7 and FCGR2B)by cytoHubba tool.Within these hubs,two genes were found to be associated with OS(CXCL10,P=0.029 and IL2RA,P=0.0066)by survival analysis.Additionally,we combined these two hub genes and age to build a nomogram.Moreover,the drugs related to IL2RA and CXCL10 might have a potential therapeutic role in relapsed and refractory BL.CONCLUSION From WGCNA and survival analysis,we identified CXCL10 and IL2RA that might be prognostic markers for BL.
文摘Adult intussusception is rare, highly associated with a malignant lead point, and often requires emergent surgical management. We report the case of a 44-year-old male who presented with generalized abdominal pain and was found to have early ileocolic intussusception secondary to a large ileocecal mass. Biopsies of the mass and an enlarged cardiophrenic lymph node, as well as pleural fluid cytology were all consistent with Burkitt lymphoma (BL). Curiously, the patient’s abdominal exam was reassuring, and the intussusception and malignant bowel obstruction resolved over 36 hours with conservative management alone. With a Burkitt lymphoma international prognostic index (BL-IPI) score of 2, the patient proceeded to treatment with combination chemoimmunotherapy and attained a complete response after four cycles. There was no bowel perforation or recurrent intussusception throughout treatment. Thus, this report marks the first reported case of adult BL-associated intussusception to resolve with non-invasive management and establishes a precedent for conservative management in select patients.
文摘目的:探讨成人原发性胃肠道Burkitt样淋巴瘤的流行病学、临床病理特点、诊断和治疗.方法:利用韩国延世大学图书馆平台在Medline/Pub Med、Web of Science、Directory of Open Access Journals(DOAJ)、Springer Link等15家英文文献数据库和中国知网中文期刊全文数据库中检索1995年以来发表的符合纳入条件的相关文献,共获得来自6篇文献的6例成人原发性胃肠道Burkitt样淋巴瘤的患者资料.结果:成人原发性胃肠道Burkitt样淋巴瘤主要分布在东亚的日本和中国(4例,66.7%);6例患者均为男性,平均年龄57.6岁;2例发生于回盲部,1例发生于胃,1例发生于结肠肝曲,1例发生于末端回肠,还有1例在胃和小肠同时发生;因发现腹部肿块就诊者4例,伴随B症状:体质量减轻4例;乏力2例;所有患者均行消化道内镜检查,行计算机断层扫描(computed tomography,CT)检查者5例,行B超检查者3例;行手术治疗者4例,行联合化疗者5例,行手术+术后化疗者3例;1例患者在1年内死亡;最长1例患者随访5年仍存活;6例患者中行CD20检测者4例,均为阳性;行C D10检测者6例,4例为阳性;行K i-67检测者3例,均为阳性;行B淋巴细胞瘤-2(B-cell lymphoma-2,Bcl-2)检测者3例,均为阴性;行CD23检测者2例,均为阴性;行CD5检测者2例,均为阴性.结论:成人原发性胃肠道Burkitt样淋巴瘤临床罕见,属于高度恶性的非霍奇金淋巴瘤,进展快,死亡率高.其临床表现缺乏特异性,在进行临床干预治疗之前,建议行全面的检查以明确诊断,最终诊断仍依赖于细针穿刺活组织检查或手术切除病理检查.治疗上应在诊断明确后尽早实施外科手术及术后的多药联合辅助化疗.临床医师应该提高对本病的认识,重视该病的临床诊治,以改善患者的预后.
基金Specific Disease Foundationfor Lymphoma of Sun Yat-sen University Cancer Center(No.2008-00652)~~
文摘背景与目的:散发性Burkitt's淋巴瘤(sporadic Burkitt's lymphoma,sBL)少见,中国sBL的EB病毒(Epstein-Barrvirus,EBV)感染状况尚未见报道。本研究探讨广州地区sBL的临床特点、形态学特征、免疫表型及EBV的感染状况。方法:分析总结21例sBL患者的临床资料,并作一系列免疫组织化学染色确定免疫表型,EBV编码的小RNA(EBV-encoded small RNAs,EBERs)原位杂交检测EBV感染情况。结果:中山大学肿瘤防治中心2000年1月～2007年10月收治的2416例非霍奇金淋巴瘤中,明确诊断21例sBL(0.87%)。男女之比为4.25:1(17/4);中位年龄23岁。21例患者中,19例(90.48%)有淋巴结侵犯;16例(76.19%)多部位受累;12例(57.14%)临床分期为Ⅲ/Ⅳ期;15例化疗或手术加化疗患者的2年生存率为56.00%。20例形态学上表现为经典BL,另1例为伴有浆细胞样分化的BL变异型。该21例sBL主要的免疫表型为sIgM+/CD20+/CD10+/Bcl-6+/Bcl-2-[或Bcl-6+(>95%)/Bcl-2+(<10%)]/TdT-/Ki-67+100%。20例可检测病例中,11例有少数肿瘤细胞(3%～20%)表达CD5。10例肿瘤(47.62%)呈P53蛋白过表达。6例(28.57%)肿瘤细胞感染EBV,表达EBNA1和EBERs,但不表达LMP1。EBV阳性及阴性病例在形态学和免疫表型上均无显著差异。结论:广州地区sBL少见,主要见于儿童及年轻成年男性。多数病例有淋巴结的侵犯。形态学及免疫表型与地方性BL类同。28.57%病例呈EBVI型潜伏感染。
