Journal
NATURE COMMUNICATIONS
Volume 2, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms1560
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Funding
- Association of International Cancer (AICR) [09-0227]
- Medical Research Council
- National Institute of Health
- American Cancer Society
- Cancer Research UK.
- Marie Curie Industry
- Biotechnology and Biological Sciences Research Council [BBS/E/B/0000C231] Funding Source: researchfish
- Cancer Research UK [12481] Funding Source: researchfish
- Medical Research Council [MC_PC_U127527200, MC_U127527200, G0901991] Funding Source: researchfish
- BBSRC [BBS/E/B/0000C231] Funding Source: UKRI
- MRC [MC_U127527200, G0901991, MC_PC_U127527200] Funding Source: UKRI
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Metastases are the major cause of death from melanoma, a skin cancer that has the fastest rising incidence of any malignancy in the Western world. Molecular pathways that drive melanoblast migration in development are believed to underpin the movement and ultimately the metastasis of melanoma. Here we show that mice lacking P-Rex1, a Rac-specific Rho GTPase guanine nucleotide exchange factor, have a melanoblast migration defect during development evidenced by a white belly. Moreover, these P-Rex1(-/-) mice are resistant to metastasis when crossed to a murine model of melanoma. Mechanistically, this is associated with P-Rex1 driving invasion in a Rac-dependent manner. P-Rex1 is elevated in the majority of human melanoma cell lines and tumour tissue. We conclude that P-Rex1 has an important role in melanoblast migration and cancer progression to metastasis in mice and humans.
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