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A sequential and coordinated activation of ERK (zeige EPHB2 Proteine), JNK (zeige MAPK8 Proteine) and STAT3 (zeige STAT3 Proteine) with RACK1 (zeige GNB2L1 Proteine) is shown to accelerate aggressive melanoma development in vivo.
MEK1 (zeige MAP2K1 Proteine) does not act as a general tumor suppressor in leukemogenesis. Rather, its effects strongly depend on the genetic context (RAS versus MYC (zeige MYC Proteine)-driven leukemia) and on the cell type involved.
our data indicate that endogenous NrasQ61R/+ induces an increase of Nras-GTP (zeige AK3 Proteine) and cytokine-evoked signaling, which is intermediate between NrasG12D/+ and NrasG12D/G12D
Interleukin-8 (zeige IL8 Proteine)-related chemokines were identified as the tumor cell-secreted culprits for NRAS-dependent pulmonary metastatic propensity, signaling to lung endothelial and myeloid cells to facilitate pulmonary invasion.
complex signaling mechanisms that involve PREX2, PI3K/AKT/PTEN and downstream epigenetic machinery to deregulate expression of key cell cycle regulators
loss of one allele of Hras (zeige HRAS Proteine) increased the sensitivity of mice to this carcinogen, and this effect was further exacerbated by the loss of the second Hras (zeige HRAS Proteine) allele. However, loss of one or both alleles of Nras failed to alter tumor burden, either in the absence or presence of Hras (zeige HRAS Proteine), after exposure to urethane.
Genetic inactivation of Ezh2 (zeige EZH2 Proteine) or Eed (zeige EED Proteine) cooperates with NRASQ61K in leukemogenesis.
Data indicate that S-phase kinase-associated protein 2 (SKP2) cooperates with N-Ras and AKT proto-oncogenes to promote hepatocarcinogenesis in vivo.
Activated NRAS and aberrant Wnt (zeige WNT2 Proteine) signaling conspire to drive congenital melanocytic nevus syndrome.
a crucial role of RXRa in suppression of UVB-induced melanomas in the context of driver mutations such as activated CDK4(R24C/R24C) or oncogenic NRAS(Q61K) and altered expression of p53 and PTEN
NRAS-mutant tumors tended to behave more aggressively particularly in early stages of the disease in studied high-risk melanoma population.
Data show that mutations in NRAS are associated with poor survival.
Authors analyzed 421 samples from CLM patients for their all-RAS mutation status to compare the overall survival rate (OS), recurrence-free survival rate (RFS), and the pattern of recurrence between the patients with and without RAS mutations.
Findings indicate neurofibromin 1 (NF1 (zeige NF1 Proteine)) as the most frequently occurring driver mutation in mucosal melanoma, and RAS alterations, consisting of NRAS and KRAS mutations, were the second most frequent mutation type.
The lack of KRAS, NRAS, BRAF (zeige BRAF Proteine), and PIK3CA (zeige PIK3CA Proteine) mutation in our study may suggest that a subset of eyelid sebaceous carcinomas is unlike that of eyelid sebaceous carcinomas of western countries.
in vitro assays confirmed that decreased miR-425 strongly induced inflammatory cytokines (interleukin [IL]-2 and interferon [IFN]-gamma) via N-Ras upregulation in the TCR signalling pathway in primary biliary cholangitis
analysis of NRAS mutations in pulmonary Langerhans cell histiocytosis
analysis of K-RAS (zeige HRAS Proteine) and N-RAS mutations in testicular germ cell tumors
KRAS mutations were rarely found together and those in codons 12 and 13 conferred poor prognosis. For BRAF, more c.1781A>G (p.D594G) colorectal cancers (CRC)carried RAS mutations [14% (3/21)] compared with c.1799T>A (p.V600E) CRCs.For NRAS, 5% (3/60) of codon 61 mutant colorectal cancers had KRAS mutations compared with 44% (10/23) of codons 12 and 13 mutant colorectal cancers
Mutation analysis Iindicate NRAS as the most commonly mutated gene in myeloma patients followed by KRAS ( and BRAF (zeige BRAF Proteine).
Although oncogenic NRAS expression alone was found to be insufficient to promote tumor formation, loss of functional p53 (zeige TP53 Proteine) was found to collaborate with NRAS expression in the genesis of melanoma.
This is an N-ras oncogene encoding a membrane protein that shuttles between the Golgi apparatus and the plasma membrane. This shuttling is regulated through palmitoylation and depalmitoylation by the ZDHHC9-GOLGA7 complex. The encoded protein, which has intrinsic GTPase activity, is activated by a guanine nucleotide-exchange factor and inactivated by a GTPase activating protein. Mutations in this gene have been associated with somatic rectal cancer, follicular thyroid cancer, autoimmune lymphoproliferative syndrome, Noonan syndrome, and juvenile myelomonocytic leukemia.
, transforming protein N-Ras
, neuroblastoma RAS viral (v-ras) oncogene homolog
, N-ras oncogene
, p21 protein
, N-ras protein part 4
, v-ras neuroblastoma RAS viral oncogene homolog
, ras p21
, N-ras oncogene p21
, neuroblastoma RAS viral oncogene-like protein
, neuroblastoma ras oncogene
, v-Ha-ras Harvey rat sarcoma viral oncogene homolog