PURPOSE: To verify the expression of the egg activator oscillin in mouse testis and adult organs. MATERIALS AND METHODS: Genomic PCR using primers for oscillin was conducted to confirm that the PCR product was derived from cDNA. Total RNA isolated from developing, immature, and mature testis was subjected to RT-PCR and restriction analysis. In situ hybridization of adult testis was performed to localize the oscillin transcript using cRNA probe. RESULTS: Genomic PCR using the primer for RT-PCR revealed no amplification product, suggesting that the oscillin gene consists of at least two exons. The RT-PCR product of oscillin mRAN was detected in testis beginning 2 weeks after birth. Oscillin mRAN was detected in both germ and somatic cells such as Sertoli and Leydig cells by in situ hybridization. The testis showed al high level of oscillin mRAN compared with other adult organs. CONCLUSION: Oscillin is not a testis-specific transcript and therefore may have another function intracellularly as well ad serving as a trigger for egg activation.
Adult ; Animals ; DNA, Complementary ; Exons ; Humans ; In Situ Hybridization ; Leydig Cells ; Male ; Mice* ; Ovum ; Parturition ; Polymerase Chain Reaction ; RNA ; RNA, Complementary ; Testis*

BACKGROUND: Anaplastic thyroid cancer (ATC) is one of the most aggressive malignancies in humans, and its progression is poorly controlled by existing therapeutic methods. Curcumin has been shown to suppress inflammation and angiogenesis. In this study, we evaluated whether curcumin could augment docetaxel-induced apoptosis of ATC cells. We also analyzed changes in nuclear factor kappaB (NF-kappaB) and cyclooxygenase-2 (COX-2) expression levels to delineate possible mechanisms of their combined action. METHODS: ATC cells were cultured and treated with curcumin and docetaxel alone or in combination. The effects on cell viability were determined by MTS assay. Apoptosis was assessed by annexin V staining and confirmed by flow cytometric analysis. Caspase, COX-2, NF-kappaB levels were assayed by Western blotting. RESULTS: Curcumin combined with docetaxel led to lower cell viability than treatment with docetaxel or curcumin alone. Annexin V staining followed by flow cytometric analysis demonstrated that curcumin treatment enhanced the docetaxel-induced apoptosis of ATC cells. Additionally, curcumin inhibited docetaxel-induced p65 activation and COX-2 expression. CONCLUSION: We conclude that curcumin may enhance docetaxel's antitumor activity in ATC cells by interfering with NF-kappaB and COX-2. Our results suggest that curcumin may emerge as an attractive therapeutic candidate to enhance the antitumor activity of taxanes in ATC treatment.
Annexin A5 ; Apoptosis* ; Blotting, Western ; Cell Survival ; Curcumin* ; Cyclooxygenase 2 ; Humans ; Inflammation ; NF-kappa B ; Taxoids ; Thyroid Gland* ; Thyroid Neoplasms*