PMID- 24517835 OWN - NLM STAT- MEDLINE DCOM- 20150916 LR - 20211203 IS - 1600-0781 (Electronic) IS - 0905-4383 (Linking) VI - 31 IP - 1 DP - 2015 Jan TI - Synergism between mTOR pathway and ultraviolet radiation in the pathogenesis of squamous cell carcinoma and its implication for solid-organ transplant recipients. PG - 15-25 LID - 10.1111/phpp.12115 [doi] AB - Nonmelanoma skin cancers (NMSCs) are the most common malignancies in the United States in immunocompetent patients. Among the solid-organ transplant recipients, NMSCs represent a significant disease burden, and they tend to be multiple and more aggressive. While the precise mechanisms responsible for the higher risk of developing cutaneous squamous cell carcinomas (SCCs) have not been completely elucidated, ultraviolet (UV) light has been established to be critical in initiation and promotion of tumor development. More recently, significant emphasis has been placed on the role of the mammalian target of rapamycin (mTOR) pathway in SCC pathogenesis. Furthermore, some studies have demonstrated the ability of mTOR inhibitors to decrease the incidence of new SCCs in the immunosuppressed transplanted patient population. In this review, we will highlight and examine the most recent available data on the role of UV radiation and its interaction with mTOR pathway signaling in SCC pathogenesis. CI - (c) 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. FAU - Balagula, Yevgeniy AU - Balagula Y AD - Department of Dermatology, Johns Hopkins Medicine, Baltimore, MD, USA. FAU - Kang, Sewon AU - Kang S FAU - Patel, Manisha J AU - Patel MJ LA - eng PT - Journal Article PT - Review DEP - 20140306 PL - England TA - Photodermatol Photoimmunol Photomed JT - Photodermatology, photoimmunology & photomedicine JID - 9013641 RN - 0 (Neoplasm Proteins) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - *Carcinoma, Squamous Cell/metabolism/pathology MH - *Cell Transformation, Neoplastic/metabolism/pathology/radiation effects MH - Humans MH - *Immunocompromised Host MH - *Neoplasm Proteins/immunology/metabolism MH - *Organ Transplantation MH - *Signal Transduction/immunology/radiation effects MH - *Skin Neoplasms/immunology/metabolism/pathology MH - *TOR Serine-Threonine Kinases/immunology/metabolism MH - Ultraviolet Rays/*adverse effects OTO - NOTNLM OT - NMSC OT - mammalian target of rapamycin OT - squamous cell carcinoma OT - transplant OT - ultraviolet radiation EDAT- 2014/02/13 06:00 MHDA- 2015/09/17 06:00 CRDT- 2014/02/13 06:00 PHST- 2014/01/21 00:00 [accepted] PHST- 2014/02/13 06:00 [entrez] PHST- 2014/02/13 06:00 [pubmed] PHST- 2015/09/17 06:00 [medline] AID - 10.1111/phpp.12115 [doi] PST - ppublish SO - Photodermatol Photoimmunol Photomed. 2015 Jan;31(1):15-25. doi: 10.1111/phpp.12115. Epub 2014 Mar 6.