Results 61 to 70 of about 373,131 (211)

Gene amplifications associated with the development of hormone- resistant prostate cancer [PDF]

open access: yes, 2003
Purpose: Hormone resistance remains a significant clinical problem in prostate cancer with few therapeutic options. Research into mechanisms of hormone resistance is essential.
Bartlett, J.M.S.   +3 more
core  

Clonal and microclonal mutational heterogeneity in high hyperdiploid acute lymphoblastic leukemia. [PDF]

open access: yes, 2016
High hyperdiploidy (HD), the most common cytogenetic subtype of B-cell acute lymphoblastic leukemia (B-ALL), is largely curable but significant treatment-related morbidity warrants investigating the biology and identifying novel drug targets.
de Smith, Adam J   +10 more
core   +1 more source

PML is induced by oncogenic ras and promotes premature senescence [PDF]

open access: yes, 2000
Oncogenic ras provokes a senescent-like arrest in human diploid fibroblasts involving the Rb and p53 tumor suppressor pathways. To further characterize this response, we compared gene expression patterns between ras-arrested and quiescent IMR90 ...
Ferbeyre, G.   +5 more
core   +1 more source

A synthetic-lethality RNAi screen reveals an ERK-mTOR co-targeting pro-apoptotic switch in PIK3CA+ oral cancers. [PDF]

open access: yes, 2016
mTOR inhibition has emerged as a promising strategy for head and neck squamous cell carcinomas (HNSCC) treatment. However, most targeted therapies ultimately develop resistance due to the activation of adaptive survival signaling mechanisms limiting the ...
Amornphimoltham, Panomwat   +10 more
core   +1 more source

MicroRNAs in melanoma development and resistance to target therapy [PDF]

open access: yes, 2017
microRNAs constitute a complex class of pleiotropic post-transcriptional regulators of gene expression involved in the control of several physiologic and pathologic processes.
Ascierto, Paolo Antonio   +7 more
core   +1 more source

Expression of ras-P21 and ras Gene Alteration in Pleomorphic Adenomas.

open access: yesThe Journal of Nihon University School of Dentistry, 1993
The expression of ras-P21 protein and gene alteration of the K-ras gene were examined in 12 cases of pleomorphic adenoma of the salivary gland. The tumor cells in all 12 cases were strongly stained for ras-P21 protein by the indirect immunoperoxidase method, suggesting the enhanced expression of ras-P21 protein in pleomorphic adenomas.
Seijiro OKUTSUI   +11 more
openaire   +3 more sources

Genetic alterations in Ki-ras and Ha-ras genes in Juvenile Nasopharyngeal Angiofibromas and head and neck cancer

open access: yesSão Paulo Medical Journal, 1999
CONETXT: Ras gene mutations have been associated to a wide range of human solid tumors. Members of the ras gene family (Ki-ras, Ha-ras and N-ras) are structurally related and code for a protein (p21) known to play an important role in the regulation of ...
Cláudia Malheiros Coutinho   +6 more
doaj   +1 more source

An integrative approach unveils FOSL1 as an oncogene vulnerability in KRAS-driven lung and pancreatic cancer [PDF]

open access: yes, 2017
KRAS mutated tumours represent a large fraction of human cancers, but the vast majority remains refractory to current clinical therapies. Thus, a deeper understanding of the molecular mechanisms triggered by KRAS oncogene may yield alternative ...
Andersen, Jesper B.   +22 more
core   +3 more sources

BLOQUEO DE LA SEÑAL DE RAS Y NUEVAS TERAPIAS ANTINEOPLÁSICAS

open access: yesMedicentro, 2011
Los genes ras pertenecen a una superfamilia de genes que codifican pequeñas proteínas de unión a nucleótidos de guanina (GDP/GTP). Las proteínas p21 Ras se localizan en la superficie interna de la membrana celular donde actúan como interruptores ...
Otmara Guirado Blanco
doaj  

EGFR inhibitor as second-line therapy in a patient with mutant RAS metastatic colorectal cancer: circulating tumor DNA to personalize treatment [PDF]

open access: yes, 2018
A 47-year-old male patient presented in March 2016 to our unit with a palpable painless left supraclavicular mass. A whole-body contrastenhanced computed tomography (CT) scan revealed a left supraclavicular lymphadenopathy, transverse colon thickening ...
Cortesi, Enrico   +3 more
core   +1 more source

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