Reference Detail

Ref Type Journal Article
PMID (20858724)
Authors Okui T, Shimo T, Fukazawa T, Kurio N, Hassan NM, Honami T, Takaoka M, Naomoto Y, Sasaki A
Title Antitumor effect of temsirolimus against oral squamous cell carcinoma associated with bone destruction.
Journal Molecular cancer therapeutics
Vol 9
Issue 11
Date 2010 Nov
URL
Abstract Text The mammalian target of rapamycin (mTOR) is engaged in the molecular pathogenesis of oral squamous cell carcinoma, which frequently invades the maxilla or the mandible. However, the effects of a mTOR inhibitor on bone destruction associated with oral squamous cell carcinoma are still unclear. In this study, we investigated the antitumor effect of temsirolimus-mediated mTOR inhibition against advanced oral squamous cell carcinoma. Temsirolimus inhibited the proliferation and migration of HSC-2 oral squamous cell carcinoma cells in vitro and suppressed the growth of oral squamous cell carcinoma xenografts in vivo. Significantly, we clearly show that temsirolimus inhibited osteoclast formation both in vitro and in vivo. Reverse transcriptase-PCR analysis showed that temsirolimus decreased the mRNA expression of receptor activator for nuclear factor-κB ligand, known as an osteoclast differentiation factor in bone stromal ST2 cells. Moreover, temsirolimus normalized blood-free calcium concentration in mouse models for humoral hypercalcemia. These findings suggest that mTOR signaling is a potential target of oral squamous cell carcinoma associated with bone destruction, and hence we describe the efficacy of temsirolimus for the treatment of advanced oral squamous carcinoma.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
Unknown unknown oral squamous cell carcinoma not applicable Temsirolimus Preclinical - Cell line xenograft Actionable In a preclinical study, Torisel (temsirolimus) inhibited proliferation and migration of oral squamous cell carcinoma cells in culture and suppressed tumor growth in cell line xenograft models of human oral squamous cell carcinoma (PMID: 20858724). 20858724