Results 91 to 100 of about 842,255 (343)

Biological activities of ethanolic extracts from deep-sea antarctic marine sponges [PDF]

open access: yes, 2013
We report on the screening of ethanolic extracts from 33 deep-sea Antarctic marine sponges for different biological activities. We monitored hemolysis, inhibition of acetylcholinesterase, cytotoxicity towards normal and transformed cells and growth ...
Ambrožič Avguštin, Jerneja   +9 more
core   +3 more sources

Targeted protein degradation in oncology: novel therapeutic opportunity for solid tumours?

open access: yesMolecular Oncology, EarlyView.
Current anticancer therapies are limited by the occurrence of resistance and undruggability of most proteins. Targeted protein degraders are novel, promising agents that trigger the selective degradation of previously undruggable proteins through the recruitment of the ubiquitin–proteasome machinery. Their mechanism of action raises exciting challenges,
Noé Herbel, Sophie Postel‐Vinay
wiley   +1 more source

Thioglycollate-elicited murine macrophages are cytotoxic to Mycoplasma arginini-infected YAC-1 tumor cells

open access: yesBrazilian Journal of Medical and Biological Research, 1998
Macrophages are important components of natural immunity involved in inhibition of tumor growth and destruction of tumor cells. It is known that these cells can be activated for tumoricidal activity by lymphokines and bacterial products.
F. Ribeiro-Dias   +5 more
doaj   +1 more source

Cytotoxic activity of selected Nigerian plants

open access: yesAfrican Journal of Traditional, Complementary and Alternative Medicines, 2010
Cancer is one of the most prominent human diseases which has stimulated scientific and commercial interest in the discovery of new anticancer agents from natural sources. The current study investigates the cytotoxic activity of ethanolic extracts of sixteen Nigerian plants used locally for the treatment of cancer using the MTT assay on the HeLa cell ...
Sowemimo, A.   +3 more
openaire   +5 more sources

Cytotoxic Activity of Mycobacterium ulcerans [PDF]

open access: yesInfection and Immunity, 1974
Although Mycobacterium ulcerans elicits extensive necrosis of human skin and subcutaneous tissue, the specific cause of the necrosis has never been elucidated. In an attempt to define a toxic substance, 18 strains of M.
John K. Read   +3 more
openaire   +2 more sources

Early metastasis is characterized by Gr1+ cell dysregulation and is inhibited by immunomodulatory nanoparticles

open access: yesMolecular Oncology, EarlyView.
Breast cancer metastasis is associated with myeloid cell dysregulation and the lung‐specific accumulation of tumor‐supportive Gr1+ cells. Gr1+ cells support metastasis, in part, through a CHI3L1‐mediated mechanism, which can be targeted and inhibited with cargo‐free, polymeric nanoparticles.
Jeffrey A. Ma   +9 more
wiley   +1 more source

Design, Synthesis and Cytotoxic Activities of Novel Aliphatic Amino-Substituted Flavonoids

open access: yesMolecules, 2013
A series of flavonoids 9a–f, 13b, 13d, 13e and 14a–f bearing diverse aliphatic amino moieties were designed, synthesized and evaluated for their cytotoxic activities against the ECA-109, A-549, HL-60, and PC-3 cancer cell lines.
Guannan Liu   +3 more
doaj   +1 more source

TRPM8 levels determine tumor vulnerability to channel agonists

open access: yesMolecular Oncology, EarlyView.
TRPM8 is a Ca2+ permissive channel. Regardless of the amount of its transcript, high levels of TRPM8 protein mark different tumors, including prostate, breast, colorectal, and lung carcinomas. Targeting TRPM8 with channel agonists stimulates inward calcium currents followed by emptying of cytosolic Ca2+ stores in cancer cells.
Alessandro Alaimo   +18 more
wiley   +1 more source

Potential Cytotoxic Activity of Psephellus pyrrhoblepharus Extracts

open access: yesProceedings, 2017
Many species of Psephellus and Centaurea genuses have pharmacological activities including antiinflamatory, antipyretic, cytotoxic etc. Psephellus pyrrhoblepharus (Boiss.) Wagenitz (Centaurea pyrrhoblephara), an endemic plant, was collected from Elazığ ...
Pelin Taştan   +3 more
doaj   +1 more source

Determinant of HIV-1 mutational escape from cytotoxic T lymphocytes. [PDF]

open access: yes, 2003
CD8+ class I-restricted cytotoxic T lymphocytes (CTLs) usually incompletely suppress HIV-1 in vivo, and while analogous partial suppression induces antiretroviral drug-resistance mutations, epitope escape mutations are inconsistently observed.
Ali, Ayub   +6 more
core  

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