PMID- 18305058 OWN - NLM STAT- MEDLINE DCOM- 20080515 LR - 20211203 IS - 1083-7159 (Print) IS - 1083-7159 (Linking) VI - 13 IP - 2 DP - 2008 Feb TI - The potential role of mTOR inhibitors in non-small cell lung cancer. PG - 139-47 LID - 10.1634/theoncologist.2007-0171 [doi] AB - The mammalian target of rapamycin (mTOR), a serine/threonine kinase, is a downstream mediator in the phosphatidylinositol 3-kinase/Akt signaling pathway, which plays a critical role in regulating basic cellular functions including cellular growth and proliferation. Currently, the mTOR inhibitor rapamycin and its analogues (CCI-779, RAD001, AP23573), which induce cell-cycle arrest in the G(1) phase, are being evaluated in cancer clinical trials. The mTOR inhibitors appear to be well tolerated, with skin reactions, stomatitis, myelosuppression, and metabolic abnormalities the most common toxicities seen. These adverse events are transient and reversible with interruption of dosing. Several pieces of evidence suggest a certain antitumor activity, including tumor regressions and prolonged stable disease, which has been reported among patients with a variety of malignancies, including non-small cell lung cancer (NSCLC). These promising preliminary clinical data have stimulated further research in this setting. Here, we review the basic structure of the pathway together with current results and future developments of mTOR inhibitors in the treatment of NSCLC patients. FAU - Gridelli, Cesare AU - Gridelli C AD - Division of Medical Oncology, S.G. Moscati Hospital, Contrada Amoretta, 83100 Avellino, Italy. cgridelli@libero.it FAU - Maione, Paolo AU - Maione P FAU - Rossi, Antonio AU - Rossi A LA - eng PT - Journal Article PT - Review PL - England TA - Oncologist JT - The oncologist JID - 9607837 RN - 0 (Antineoplastic Agents) RN - 0 (Immunosuppressive Agents) RN - 48Z35KB15K (ridaforolimus) RN - 624KN6GM2T (temsirolimus) RN - 9HW64Q8G6G (Everolimus) RN - EC 2.7.- (Protein Kinases) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - W36ZG6FT64 (Sirolimus) SB - IM MH - Antineoplastic Agents/pharmacology/*therapeutic use MH - Antineoplastic Combined Chemotherapy Protocols/therapeutic use MH - Carcinoma, Non-Small-Cell Lung/*drug therapy MH - Clinical Trials as Topic MH - Disease Progression MH - ErbB Receptors/drug effects MH - Everolimus MH - Humans MH - Immunosuppressive Agents/pharmacology/*therapeutic use MH - Lung Neoplasms/*drug therapy MH - Protein Kinases/*drug effects/metabolism MH - Sirolimus/analogs & derivatives/pharmacology/*therapeutic use MH - TOR Serine-Threonine Kinases MH - Treatment Outcome RF - 74 EDAT- 2008/02/29 09:00 MHDA- 2008/05/16 09:00 CRDT- 2008/02/29 09:00 PHST- 2008/02/29 09:00 [pubmed] PHST- 2008/05/16 09:00 [medline] PHST- 2008/02/29 09:00 [entrez] AID - 13/2/139 [pii] AID - 10.1634/theoncologist.2007-0171 [doi] PST - ppublish SO - Oncologist. 2008 Feb;13(2):139-47. doi: 10.1634/theoncologist.2007-0171.