The cytotoxic, antimitotic, and growth inhibition properties of a photoactive analogue of vinblastine, N-(p-azidobenzoyl)-N'-beta-aminoethylvindesine (NABV), and vinblastine on P388 murine leukemia cells were compared. After 72-h exposure, the 50% drug-inhibitory concentrations for exponentially growing P388 leukemic cells were 1.2 nM for NABV and 0.6 nM for vinblastine. The ultrastructural eff...

The temperature of cities continues to increase because of the heat island phenomenon and the undeniable climatic change. The observed high ambient temperatures intensify energy problems in cities, deteriorates comfort conditions, put in danger the vulnerable population and amplify the pollution problems. There are some suggested ways to reduce these issues, among them vegetated roofs are shown...

End-binding 1 protein (EB1) is a key player in the regulation of microtubule (MT) dynamics. Here, we investigated the role of EB1 in glioblastoma (GBM) tumor progression and its potential predictive role for response to Vinca-alkaloid chemotherapy. Immunohistological analysis of the 109 human GBM cases revealed that EB1 overexpression correlated with poor outcome including progression-free surv...

PURPOSE To analyze the available data concerning mechanisms of action of and mechanisms of resistance to the antitubulin agents, vinca alkaloids and taxanes, and more recently described compounds. DESIGN We conducted a review of the literature on classic and recent antitubulin agents, focusing particularly on the relationships between antitubulin agents and their intracellular target, the sol...

The cytotoxic, antimitotic, and growth inhibition properties of a pho toactive analogue of vinblastine, Ar-(p-azidobenzoyl)-A''-0-aminoethylvindesine (NÕBV), and vinblastine on P388 murine leukemia cells were compared. After 72-h exposure, the 50% drug-inhibitory concentrations for exponentially growing P388 leukemic cells were 1.2 n\i for NABV and 0.6 n\i for vinblastine. The ultrastructural ...

INTRODUCTION One of the main reasons for disease recurrence in the curative breast cancer treatment setting is the development of drug resistance. Microtubule targeted agents (MTAs) are among the most commonly used drugs for the treatment of breaset cancer and therefore overcoming taxane resistance is of primary clinical importance. Our group has previously demonstrated that the microtubule dyn...

Vinflunine (VFL) is a third-generation bifluorinated semi-synthetic vinca alkaloid obtained by superacidic chemistry from its parent compound, vinorelbine. As with the other vinca alkaloids, the main antineoplastic effects of VFL arise from its interaction with tubulin, the major component of microtubules in mitotic spindles. In contrast to other vinca alkaloids, VFL shows some distinctive prop...

Os artigos reunidos neste volume oferecem ao leitor uma perspectivação das formas como o horizonte tecnocultural contemporâneo vinca profundamente as práticas de criação literária. Nesse sentido, um problema recorrente consiste na busca modos apreensão conceitual fenômenos que esgarçam linhas imaginárias até então circunscreviam literárias.