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Journal ArticleDOI

RHO-GTPases and cancer.

Erik Sahai, +1 more
- 01 Feb 2002 - 
- Vol. 2, Iss: 2, pp 133-142
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TLDR
The RAS oncogenes are members of a large family of small GTPases that bind GTP and hydrolyse it to GDP and the switching between these two states regulates a wide range of cellular processes.
Abstract
The RAS oncogenes were identified almost 20 years ago. Since then, we have learnt that they are members of a large family of small GTPases that bind GTP and hydrolyse it to GDP. This is then exchanged for GTP and the cycle is repeated. The switching between these two states regulates a wide range of cellular processes. A branch of the RAS family--the RHO proteins--is also involved in cancer, but what is the role of these proteins and would they make good therapeutic targets?

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Citations
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Journal ArticleDOI

MAP kinase signalling pathways in cancer.

TL;DR: Recent findings and hypotheses on the role of MAPK pathways in cancer are discussed, with a focus on stress-activated pathways, which largely seem to counteract malignant transformation.
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Ca2+ Sensitivity of Smooth Muscle and Nonmuscle Myosin II: Modulated by G Proteins, Kinases, and Myosin Phosphatase

TL;DR: It is suggested that the RhoA/ROK pathway is constitutively active in a number of organs under physiological conditions; its aberrations play major roles in several disease states, particularly impacting on Ca2+ sensitization of smooth muscle in hypertension and possibly asthma and on cancer neoangiogenesis and cancer progression.
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GEF means go: turning on RHO GTPases with guanine nucleotide-exchange factors

TL;DR: With 69 distinct homologues, Dbl-related GEFs represent the largest family of direct activators of Rho GTPases in humans, and they activate RhoGTPases within particular spatio-temporal contexts.
Journal ArticleDOI

EMT, the cytoskeleton, and cancer cell invasion

TL;DR: This review has summarized recent novel insights into the molecular processes and players underlying EMT on one side and the formation of invasive membrane protrusions on the other side.
Journal ArticleDOI

RAS oncogenes: weaving a tumorigenic web

TL;DR: This Review describes how RAS oncogenes exploit their extensive signalling reach to affect multiple cellular processes that drive tumorigenesis.
References
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Journal ArticleDOI

Initial sequencing and analysis of the human genome.

Eric S. Lander, +248 more
- 15 Feb 2001 - 
TL;DR: The results of an international collaboration to produce and make freely available a draft sequence of the human genome are reported and an initial analysis is presented, describing some of the insights that can be gleaned from the sequence.
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CDK inhibitors: positive and negative regulators of G1-phase progression

TL;DR: This work challenges previous assumptions about how the G1/S transition of the mammalian cell cycle is governed, helps explain some enigmatic features of cell cycle control that also involve the functions of the retinoblastoma protein (Rb) and the INK4 proteins, and changes the thinking about how either p16 loss or overexpression of cyclin D-dependent kinases contribute to cancer.
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Rho GTPases and the Actin Cytoskeleton

TL;DR: Members of the Rho family of small guanosine triphosphatases have emerged as key regulators of the actin cytoskeleton, and through their interaction with multiple target proteins, they ensure coordinated control of other cellular activities such as gene transcription and adhesion.
Journal ArticleDOI

Rho, Rac, and Cdc42 GTPases regulate the assembly of multimolecular focal complexes associated with actin stress fibers, lamellipodia, and filopodia

TL;DR: It is reported here that cdc42, another member of the rho family, triggers the formation of a third type of actin-based structure found at the cell periphery, filopodia, in addition to stress fibers, and rho controls the assembly of focal adhesion complexes.
Journal ArticleDOI

The small GTP-binding protein rac regulates growth factor-induced membrane ruffling.

TL;DR: It is proposed that rac and rho are essential components of signal transduction pathways linking growth factors to the organization of polymerized actin and that growth factors act through rac to stimulate this rho-dependent response.