RESUMO
C1q tumor necrosis factor-related protein 6 (CTRP6), a member of the C1q tumor necrosis factor-related protein (CTRP) family, is reported to be associated with the progression of different malignancies, however, its expression levels and role in breast cancer (BC) are yet unknown. In this study, we investigated the levels of circulating CTRP6 in BC patients and evaluated its role as a potential diagnostic biomarker in BC patients. Then we investigated the effect of recombinant CTRP6 on cellular viability in MCF-7 cells along with its effects on the expression of inflammatory cytokines, interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-α) in addition to the expression of vascular endothelial growth factor (VEGF) as a marker of angiogenesis. Our results showed decreased expression of circulating CTRP6 in BC patients with an inverse correlation between CTRP6 and IL-6, TNF-α and VEGF levels. Besides, Receiver operating characteristic (ROC) curve showed that the assessment of CTRP6 levels could be used to predict BC. Moreover, treatment of MCF-7 cells with recombinant CTRP6 protein reduced cellular viability and decreased IL-6, TNF-α and VEGF expression. In conclusion, these results provide new insights into the role of CTRP6 in BC pathogenesis and suggest its potential use as a novel diagnostic biomarker of BC.
Assuntos
Neoplasias da Mama , Regulação Neoplásica da Expressão Gênica , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Biomarcadores Tumorais/sangue , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/metabolismo , Neoplasias da Mama/genética , Neoplasias da Mama/sangue , Neoplasias da Mama/patologia , Sobrevivência Celular , Colágeno , Regulação para Baixo , Interleucina-6/metabolismo , Interleucina-6/sangue , Células MCF-7 , Proteínas Recombinantes/metabolismo , Proteínas Recombinantes/genética , Fator de Necrose Tumoral alfa/metabolismo , Fator de Necrose Tumoral alfa/sangue , Fator A de Crescimento do Endotélio Vascular/metabolismo , Fator A de Crescimento do Endotélio Vascular/sangueRESUMO
BACKGROUND: Due to high recurrence rate after subtotal thyroidectomy, most of centers have shifted to total thyroidectomy as a surgical treatment for benign multinodular goiter (BMNG), but serious complications, as laryngeal nerve affection & hypocalcaemia, are still present. This study aimed to evaluate treatment of BMNG using intra-capsular total thyroid enucleation in comparison to standard total thyroidectomy. PATIENTS &METHODS: This is a prospective randomized controlled clinical trial conducted in a hospital in the period from December 2009 to December 2015. Of total 224 patients with clinically BMNG. 112 patients operated by intracapsular total thyroid enucleation (ITTE group) and the other 112 patients operated by standard total thyroidectomy (STT group). The minimal follow up period was 36 months. RESULTS: The mean operative time in ITTE group was (93.7 ± 9.6 min) compared to (86.9 ± 8.3 min) in STT group. Transient recurrent laryngeal nerve (RLN) palsy was 0% in ITTE group VS 7.1% in STT group. No cases (0%) developed permanent RLN palsy in ITTE group VS 0.9% in STT group. Symptomatic transient hypocalcaemia occurred in 1.8% in ITTE group VS 11.6% in STT group. No cases (0%) developed permanent hypocalcaemia in ITTE group VS 0.9% in STT group. No recurrence (0%) in both groups after minimal 3 years of follow up. CONCLUSION: Intracapsular Total thyroid enucleation technique is safe with the least serious complications, especially RLN injury and hypoparathyroidism, with no recurrence, but this technique still not radical so couldn't be used in suspicious cases for malignancy.