Results 51 to 60 of about 380,814 (333)

Evaluating The Role Of Nitric Oxide Synthase In Oncogenic Ras-Driven Tumorigenesis

Redox Biology, 2015
We previously reported that oncogenic KRAS activation of the PI3K/AKT pathway stimulates the remaining wild-type HRAS and NRAS proteins in a manner dependent upon both eNOS expression and C118 in HRAS and NRAS, which promoted tumor growth.
Chris Counter
doaj   +1 more source

Molecules linked to Ras signaling as therapeutic targets in cardiac pathologies

Biological Research, 2021
Highlights The Ras (Rat Sarcoma) gene family is a group of small G proteins Ras is regulated by growth factors and neurohormones affecting cardiomyocyte growth and hypertrophy Ras directly affects cardiomyocyte physiological and pathological hypertrophy ...
Manuel Ramos-Kuri, Sri Harika Meka, Fabio Salamanca-Buentello, Roger J. Hajjar, Larissa Lipskaia, Elie R. Chemaly   +5 more
doaj   +1 more source

Oncogenic NRAS Mutation in Incipient Sarcomatous Transformation of Cystic Nephroma From a Patient With DICER1‐Related Tumor Predisposition Syndrome

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Anaplastic sarcoma of the kidney (ASK) is a DICER1‐associated malignant tumor presumed to arise in a benign precursor, pediatric cystic nephroma (PCN). However, the initial oncogenic alteration(s) associated with malignant transformation are unknown.
Nahir Cortes‐Santiago, Sarah B. Whittle, Sarah Scollon, Sharon E. Plon, Sanjeev Vasudevan, Bryony J. Lucas, Angshumoy Roy   +6 more
wiley   +1 more source

Deconstruction of the Ras switching cycle through saturation mutagenesis

eLife, 2017
Ras proteins are highly conserved signaling molecules that exhibit regulated, nucleotide-dependent switching between active and inactive states. The high conservation of Ras requires mechanistic explanation, especially given the general mutational ...
Pradeep Bandaru, Neel H Shah, Moitrayee Bhattacharyya, John P Barton, Yasushi Kondo, Joshua C Cofsky, Christine L Gee, Arup K Chakraborty, Tanja Kortemme, Rama Ranganathan, John Kuriyan   +10 more
doaj   +1 more source

An Activating Mutation in sos-1 Identifies Its Dbl Domain as a Critical Inhibitor of the Epidermal Growth Factor Receptor Pathway during Caenorhabditis elegans Vulval Development [PDF]

, 2007
Proper regulation of receptor tyrosine kinase (RTK)-Ras-mitogen-activated protein kinase (MAPK) signaling pathways is critical for normal development and the prevention of cancer.
Elgort, Marc G., Huang, Jingyu, Jongeward, Gregg, Lauritzen, Amara, Modzelewska, Katarzyna, Moghal, Nadeem, Sternberg, Paul W., Yoon, Charles H.   +7 more
core   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A Comparative Analysis of Individual RAS Mutations in Cancer Biology

Frontiers in Oncology, 2019
In human cells, three closely related RAS genes, termed HRAS, KRAS, and NRAS, encode four highly homologous proteins. RAS proteins are small GTPases involved in a broad spectrum of key molecular and cellular activities, including proliferation and ...
Carmen Muñoz-Maldonado, Carmen Muñoz-Maldonado, Yitzhak Zimmer, Yitzhak Zimmer, Michaela Medová, Michaela Medová   +5 more
doaj   +1 more source

TGFβ-induced changes in membrane curvature influence Ras oncoprotein membrane localization

Scientific Reports, 2022
In the course of cancer progression tumor cells undergo morphological changes that lead to increased motility and invasiveness thus promoting formation of metastases.
Alexandros Damalas, Ivana Vonkova, Marijonas Tutkus, Dimitrios Stamou   +3 more
doaj   +1 more source

Ras-GRF Activates Ha-Ras, but Not N-Ras or K-Ras 4B, Proteinin Vivo [PDF]

Journal of Biological Chemistry, 1998
Human cells contain four homologous Ras proteins, but it is unknown whether these homologues have different biological functions. As a first step in determining if Ras homologues might participate in distinct signaling cascades, we assessed whether a given Ras guanine nucleotide exchange factor could selectively activate a single Ras homologue in vivo.
M K, Jones, J H, Jackson
openaire   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source