期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1977
卷号:74
期号:12
页码:5559-5563
DOI:10.1073/pnas.74.12.5559
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:Vinblastine injections in newborn mice produce severe atrophy of sympathetic ganglia; after a 7-day treatment the ganglia are 80% reduced in volume. Histological examinations show that this effect is due to a marked decrease in the neuronal cell population. The most precocious ultra-structural alterations are localized in the nuclear compartment, followed by axonal swelling and microtubule disappearance. Simultaneous injections of nerve growth factor entirely prevent the noxious effects of the vinca alkaloid, and result in partial appearance of the growth effects of nerve growth factor. Such protective action is not due to inhibition of vinblastine uptake which is the same in control mice and in mice pretreated with nerve growth factor. It is suggested that nerve growth factor prevents the vinca alkaloid action by favoring the assembly or organization, or both, of microtubules, which, from in vitro studies, have been proved to be inaccessible to vinblastine.