PMID- 15578690 OWN - NLM STAT- MEDLINE DCOM- 20050519 LR - 20211203 IS - 1045-2257 (Print) IS - 1045-2257 (Linking) VI - 42 IP - 3 DP - 2005 Mar TI - Efficacy of a rapamycin analog (CCI-779) and IFN-gamma in tuberous sclerosis mouse models. PG - 213-27 AB - Tuberous sclerosis complex (TSC) is a familial tumor disorder for which there is no effective medical therapy. Disease-causing mutations in the TSC1 or TSC2 gene lead to increased mammalian target of rapamycin (mTOR) kinase activity in the conserved mTOR signaling pathway, which regulates nutrient uptake, cell growth, and protein translation. The normal function of TSC1 and TSC2 gene products is to form a complex that reduces mTOR kinase activity. Thus, mTOR kinase inhibition may be a useful targeted therapeutic approach. Elevated interferon-gamma (IFN-gamma) expression is associated with decreased severity of kidney tumors in TSC patients and mouse models; therefore, IFN-gamma also has therapeutic potential. We studied cohorts of Tsc2+/- mice and a novel mouse model of Tsc2-null tumors in order to evaluate the efficacy of targeted therapy for TSC. We found that treatment with either an mTOR kinase inhibitor (CCI-779, a rapamycin analog) or with IFN-gamma reduced the severity of TSC-related disease without significant toxicity. These results constitute definitive preclinical data that justify proceeding with clinical trials using these agents in selected patients with TSC and related disorders. FAU - Lee, Laifong AU - Lee L AD - Division of Hematology, Brigham and Women's Hospital, Boston, MA 02115, USA. FAU - Sudentas, Paul AU - Sudentas P FAU - Donohue, Brian AU - Donohue B FAU - Asrican, Kirsten AU - Asrican K FAU - Worku, Aelaf AU - Worku A FAU - Walker, Victoria AU - Walker V FAU - Sun, Yanping AU - Sun Y FAU - Schmidt, Karl AU - Schmidt K FAU - Albert, Mitchell S AU - Albert MS FAU - El-Hashemite, Nisreen AU - El-Hashemite N FAU - Lader, Alan S AU - Lader AS FAU - Onda, Hiroaki AU - Onda H FAU - Zhang, Hongbing AU - Zhang H FAU - Kwiatkowski, David J AU - Kwiatkowski DJ FAU - Dabora, Sandra L AU - Dabora SL LA - eng GR - CA086248/CA/NCI NIH HHS/United States GR - DK066366/DK/NIDDK NIH HHS/United States GR - HL007680/HL/NHLBI NIH HHS/United States GR - NS31535/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Genes Chromosomes Cancer JT - Genes, chromosomes & cancer JID - 9007329 RN - 0 (Repressor Proteins) RN - 0 (Tsc2 protein, mouse) RN - 0 (Tuberous Sclerosis Complex 2 Protein) RN - 0 (Tumor Suppressor Proteins) RN - 624KN6GM2T (temsirolimus) RN - 82115-62-6 (Interferon-gamma) RN - EC 2.7.- (Protein Kinases) RN - EC 2.7.1.1 (mTOR protein, mouse) RN - EC 2.7.11.1 (Ribosomal Protein S6 Kinases) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - W36ZG6FT64 (Sirolimus) SB - IM MH - Animals MH - Cystadenoma/metabolism/pathology/prevention & control MH - *Disease Models, Animal MH - Drug Therapy, Combination MH - Hemangioma/metabolism/pathology/prevention & control MH - Interferon-gamma/*therapeutic use MH - Kidney Neoplasms/metabolism/pathology/prevention & control MH - Liver Neoplasms, Experimental/metabolism/pathology/prevention & control MH - Mice MH - Mice, Knockout MH - Mice, Nude MH - Phosphorylation MH - Protein Kinases/metabolism MH - Repressor Proteins/genetics/*physiology MH - Ribosomal Protein S6 Kinases/metabolism MH - Signal Transduction MH - Sirolimus/*analogs & derivatives/*therapeutic use MH - TOR Serine-Threonine Kinases MH - Tuberous Sclerosis/*drug therapy/metabolism/pathology MH - Tuberous Sclerosis Complex 2 Protein MH - Tumor Suppressor Proteins/genetics/*physiology EDAT- 2004/12/04 09:00 MHDA- 2005/05/20 09:00 CRDT- 2004/12/04 09:00 PHST- 2004/12/04 09:00 [pubmed] PHST- 2005/05/20 09:00 [medline] PHST- 2004/12/04 09:00 [entrez] AID - 10.1002/gcc.20118 [doi] PST - ppublish SO - Genes Chromosomes Cancer. 2005 Mar;42(3):213-27. doi: 10.1002/gcc.20118.