报告题目:Modeling HIV multiple infections
报告人:邱志鹏教授(南京理工大学)
报告时间:2020年12月8日晚上20:00-21:30
报告地点:复杂系统研究所(腾讯会议)
报告摘要:
Multiple infection of target cells by human immunodeficiency virus (HIV) may lead to viral escape from host immune responses and drug resistance to antiretroviral therapy, bringing more challenges to the control of infection. The mechanisms underlying HIV multiple infection and their relative contributions are not fully understood. In this paper, we develop and analyze a mathematical model that includes sequential cell-free virus infection (i.e. one virus is transmitted each time in a sequential infection of target cells by virus) and cell-to-cell transmission (i.e. multiple viral genomes are transmitted simultaneously from infected to uninfected cells). By comparing model prediction with the distribution data of proviral genomes in HIV-infected spleen cells, we find that multiple infection can be well explained when the two modes of viral transmission are both included. Numerical simulation using the parameter estimates from data fitting shows that the majority of T cell infections are attributed to cell-to-cell transmission and this transmission mode also accounts for more than half of cell’s multiple infections. These results suggest that cell-to-cell transmission plays a critical role in forming HIV multiple infection and thus has important implications for HIV evolution and pathogenesis. This is a joint work with Ting Guo, Kosaku Kitagawa, Shingo Iwami and Libin Rong.
报告人简介:
邱志鹏:南京理工大学江阴校区基础教学与实验中心主任、教授、博士生导师。1996年和1999年从西南师大数学系分别获得学士和硕士学位后进入南京理工大学理学院从事教学和科研工作;2003年获南京理工大学控制科学与工程专业博士学位;2003年7月至2005年7月在中国科大数学系从事博士后研究工作;2008年8月至2009年8月和2011年8月至2012年5月两次美国普渡大学做访问学者(访问助理教授)和合作交流;2013年7月至2014年7月在加拿大York大学做访问学者和合作交流;先后还短期(三个月以内)访问过意大利Trento大学,加拿大Alberta大学和美国Flordia大学。主要从事常微分方程、动力系统与生物数学的研究工作,主持完成国家自然科学基金青年基金1项,面上项目1项,教育部留学回国基金1项,参加完成国家自然科学基金面上项目1项,目前正在主持国家自然科学基金面上项目1项,参加国家自然科学基金面上项目和江苏省自然科学基金青年项目1项,已在Bull. Math. Biol., Math. Biosci., J. Diff. Equs., SIAM J. Appl. Math., J. Math. Biol., J. Theor. Biol., J. Math. Anal. Appl.等期刊上发表论文40余篇。