RESUMO
Osteoporosis (OP), a common metabolic bone disease, is accompanied by reduced bone mass, bone mineral density (BMD), as well as microstructure destruction of bone. Previously, microRNA-196a-2 (miR-196a-2) and miR-196a-3p were reported for its involvement in BMD. Herein, this study set out to identify the functional relevance of miR-196a in osteogenic differentiation in osteoporotic mice and explore the associated mechanism by establishing an OP mouse model. Guanine nucleotide binding protein, alpha stimulating (GNAS) was verified as a target gene of miR-196a, which was decreased in OP mice. Furthermore, the bone marrow stromal cells (BMSCs) were then extracted from OP mice and treated with miR-196 mimic/inhibitor or small interfering RNA against GNAS to investigate miR-196a interaction with GNAS and the Hedgehog signaling pathway. BMSCs in OP mice transfected with miR-196a mimic or si-GNAS displayed the elevated expression of Smo, ALP, Runx2, and OPN, as well as bone gla protein and tartrate-resistant acid phosphatase, elevated ALP vitality and bone formation ability as well as reduced expression of GNAS and PTCH. Taken conjointly, overexpression of miR-196a repressed GNAS expression by activating the Hedgehog signaling pathway, thus promoting osteogenic differentiation in mice with OP.
Assuntos
Diferenciação Celular/fisiologia , Proteínas Hedgehog/metabolismo , MicroRNAs/metabolismo , Osteogênese/fisiologia , Osteoporose/metabolismo , Animais , Diferenciação Celular/genética , Ensaio de Imunoadsorção Enzimática , Feminino , Proteínas Hedgehog/genética , Camundongos , Camundongos Endogâmicos C57BL , MicroRNAs/genética , Osteogênese/genética , Osteoporose/genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Transdução de Sinais/genética , Transdução de Sinais/fisiologiaRESUMO
OBJECTIVE: To analyze the relation of HBV infection with clinical characteristics and prognosis in NHL patients, so as to explore the significance of HBV detection. METHODS: Sixty-eight NHL patients from December 2013 to December 2016 were enrolled in NHL group and 136 patients with other malignancies were chosen in control group, the detectable rate of HBV was compared between 2 groups. The correlation of HBV infection with sex, age, stage, cell origin, expression of P53 and BCL-2 in NHL patients was analyzed. The prognosis-related factors in NHL patients were also analyzed. RESULTS: The infection rate of HBV in NHL group was 51.47%(35/68), that in control group was 15.44% (21/136), and the difference was statistically significant(χ2=27.768,P<0.05). HBV infection correlated with cell origins and expression of BCL-2 in NHL patients(P<0.05). The prognosis of NHL patients demonstrated no correlation with sex, age, cell origins and HBV infection (P>0.05), while the prognosis was significantly related with stage, expression of P53 and BCL-2(P<0.05). CONCLUSION: HBV infection correlates with BCL-2 expression level of NHL patients, and shows influence on the prognosis of patients.