题目:活体流式细胞仪技术
时间:2017年6月9日(周五)下午2:30
地点:光电工程学院1118会议室
报告人:魏勋斌教授
主持人:屈军乐教授
内容:Bone marrow-derived mesenchymal stem cells (MSCs) can localize in injured, inflamed, and cancerous tissues after systemic infusion. However, the dynamic homing profile of MSCs in the peripheral blood is not well characterized. Here, using in vivo flow cytometry to non-invasively monitor the dynamics of fluorescence-labeled cells, we found different clearance kinetics of systemically infused MSCs between healthy and tumor mouse models. The circulation times of MSCs in healthy mice and mice with subcutaneous tumors, orthotopically transplanted liver tumors, or metastatic lung tumors were 30, 24, 18, and 12 hours, respectively, suggesting that MSCs actively home to tumor environments. MSCs infiltrated into hepatocellular carcinoma sites and preferentially engrafted to micrometastatic regions both in vivo and in vitro. The expression of EGF, CXCL9, CCL25, and MMP-9 by hepatocellular carcinoma cells differed between primary tumor sites and metastatic regions. By characterizing the homing profiles of systemically perfused MSCs under physiological and cancerous conditions, these findings increase our understanding of the migration of MSCs from the circulation to tumor sites and constitute a basis for developing MSC-based anti-cancer therapeutic strategies.
简历:魏勋斌,博士,博士生导师,上海交通大学特聘教授,SPIE(国际光学工程学会)Fellow。1993年于中国科技大学物理系光电子技术专业获学士,1999年获美国加州大学Irvine分校生物物理学博士,1999-2001年在哈佛大学医学院从事博士后研究。2001-2006年任哈佛大学医学院研究助理教授。 2006年回国,任复旦大学生物医学研究院研究员、副院长,化学系教授。共发表NATURE、PNAS等SCI论文70余篇,他引800余次。获得国家三类医疗器械注册证一项,国内外专利五项。现任上海交通大学特聘教授(生物医学工程学院与MED-X研究院),生物医疗仪器学科负责人,国家杰出青年基金获得者,SPIE(国际光学工程学会)Fellow(会士),中国仪器仪表学会医疗仪器分会副理事长,中国光学学会激光医学专业委员会副主任委员,中国生物物理学会分子影像专业委员会常务委员,中国光学学会生物医学光子学专业委员会常务委员。受邀担任细胞分析领域期刊Cytometry Part A (影响因子3.71)的副主编,国家外专局“海外计划”评审专家,国家基金委医学部会评专家。主要研究肿瘤与免疫的光学成像与检测技术及治疗。