Pàgina 1 des de 46 resultats
Various active compounds (or their semi-synthetic derivatives) derived from medicinal plants have been assessed for their efficacy and tolerability in the treatment of breast cancer. Some of these plant species, including Taxus baccata (paclitaxel, docetaxel), Podophyllum peltatum (etoposide),
The role of cytoplasmic microtubules in the phagocytosis of yeast cells by blood monocytes was studied by means of therapeutic concentrations of the Vinca alkaloids vincristine, vinblastine, and vindesine. Phagocytosis was measured in a monolayer of glass-adherent monocytes fed with
Tubulin, the protein subunit of microtubules, is considered a target for antimitotic agents such as colchicine, maytansine and the vinca alkaloids vincristine and vinblastine. Of these agents, only vincristine and vinblastine have been found to have clinical utility for treatment of human neoplastic
Therapeutic options for malignant pleural mesothelioma (MPM) are limited. Most patients are treated with chemotherapy during the course of their disease. The combination of pemetrexed with a platinum compound is the standard of care in the first-line setting, while no established treatment exists in
Vinca alkaloids (VA) are some of the key anti-tumor agents for patients with hematological malignancies, and various adverse events such as paralytic ileus, peripheral neuropathy, and constipation were now recognized as adverse VA effects. Furthermore, azole anti-fungal agents are known to enhance
Unmodified vinblastine (VLB) targeted through one of the antigen combining sites of the hybrid-hybrid 28.19.8 monoclonal is potentially more effective in suppressing the growth of established MAWI tumour xenografts implanted on nude mice than free VLB in the absence of the targeting agent,
The antimicrobial activity of Vinca rosea was evaluated against pathogenic bacterial strains (Bacillus subtilis, B. licheniformis and Azotobacter sp.) and fungal strains (Asprgillus niger, Alternaria solani and Rhizopus oryzae) using agar well diffusion method. Methanolic extracts of in vivo leaf,
The current study aims at exploring enzyme inhibition of four species of medicinal herbs, namely Senna bicapsularis, Thevetia peruviana, Nerium oleander and Vinca major. Plant selection was done on the basis of their therapeutic uses by local practitioners. The crude methanolic
Endophytic fungi have been recognized as a potential source of bioactive secondary metabolites. The endophytic Trichoderma species were isolated from Vinca plants (Vinca major, Vinca herbacea, and Vinca minor), found in Iran and screened for antimicrobial and anti-proliferative activity. Based on
S 12363 is a new Vinca alkaloid derivative, characterized by the grafting of an alpha-aminophosphonate, onto the Vinca nucleus, facilitating drug penetration and increasing intracellular drug retention. As a high cytotoxic activity had been demonstrated in in vitro and in vivo models recommended by
On account of its extreme intrinsic resistance to apoptosis and of its strong ability to become chemoresistant after a primary response to drugs, malignant melanoma (MM) is still a therapeutic challenge. We previously showed that glutathione S-transferase mu 1 (GSTM1) acts in synergy with multidrug
One of the major causes of failure in cancer chemotherapy is the selection and proliferation of specific drug-resistant tumor cells during treatment. The mechanism of acquired resistance of tumor cells to some agents is related to intracellular drug accumulation and retention. For example, in
The functional properties of a hybrid-hybrid monoclonal antibody (MAb) recognising both CEA and Vinca alkaloids have been explored in vivo in nude mice xenografted with MAWI, a human colorectal tumour. The hybrid-hybrid MAb localises specifically onto CEA-expressing tumour tissue and, furthermore,
We investigated the effect of vinconate, a novel vinca alkaloid derivative, on delayed neuronal death using Mongolian gerbils. The animals were allowed to survive for 7 d after 3 or 5 min of forebrain ischemia induced by bilateral occlusion of the common carotid arteries. Morphological changes and