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Objective:To explore the clinical effect of small incision endoscopic thyroidectomy in the treatment of differentiated thyroid cancer (DTC).Method:The clinical data of 63 patients with DTC in Anhui Wanbei Hospital were analyzed retrospectively. According to different surgical schemes, 33 patients who underwent complete endoscopic thyroidectomy were listed as the control group and 30 patients who underwent small oral endoscopic thyroidectomy were listed as the experimental group. The operation and postoperative recovery, immunosuppressive indexes (CD 3+, CD 4+, CD 8+, CD 4+/CD 8+) before operation and on the first and third day after operation, the levels of tumor indexes vascular endothelial growth factor (VEGF), thyroglobulin (Tg) before operation and one month after operation and the incidence of complications were compared between the two groups. Results:Compared with the control group, the operation time in the experimental group was shorter: (87.73 ± 15.35) min vs. (102.45 ± 20.78)min, t = 3.171, P = 0.002 ; the amount of intraoperative bleeding in the experimental group was shorter: (20.37 ± 5.26) ml vs. (44.25 ± 6.39) ml, t = 16.099, P<0.001 ; the incision length and the postoperative hospital stay in the experimental group were lower: (2.03 ± 0.14) cm vs. (2.58 ± 0.18) cm, t = 13.440, P<0.001; (4.58 ± 1.17) d vs. (6.02 ± 1.09) d, t = 5.057, P<0.001; the number of lymph node dissections in the experimental group was more: (6.20 ± 1.08) cases vs.(5.12 ± 1.13) cases, t = 3.869, P<0.001.Compared with before operation, the levels of CD 3+, CD 4+, CD 4+/CD 8+ decreased and CD 8+ increased in the two groups on the first day after operation, but the change range in the experimental group was small, and the experimental group recovered to the preoperative level on the third day after operation ( P>0.05). One month after operation, the levels of serum VEGF and Tg in the two groups were lower than those before operation ( P<0.05), but there was no significant difference between the two groups ( P>0.05). There was no significant difference in the incidence of complications between the two groups ( P>0.05). Conclusions:Small incision endoscopic thyroidectomy in the treatment of DTC can achieve the same tumor treatment effect as complete endoscopic surgery, significantly shorten the operation time, reduce incision trauma and intraoperative bleeding, and reduce immunosuppression, which is conducive to postoperative rehabilitation and good treatment safety.
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Programmed death-1 (PD-1) and programmed death-ligand 1 (PD-L1) participate in the regulation of immune checkpoint and are closely related to the occurrence and development of thyroid carcinoma. PD-L1 is expressed differently in different types of thyroid cancer and can be used as a biomarker for the diagnosis of some tumors. The expression of PD-L1 in thyroid cancersis associated with higher tumor invasiveness and higher risk of recurrence. PD-1/PD-L1 immune checkpoint is a promising target for the treatment of some thyroid cancers. Further discussion of the mechanism of PD-1/PD-L1 pathway and its role in the diagnosis and treatment of thyroid cancer and the biomarkers related to the therapeutic effect can provide new ideas for the diagnosis and treatment of thyroid cancer.
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Objective To explore the immune property and possible mechanism of the CD71+ CD235a+ nucleated erythroid cells from peripheral blood in elderly,as compared with those of healthy young.Methods Peripheral blood obtained by venipuncture from healthy young(n=59,mean age=28 years) and elderly(n=78,mean age=68 years)donors were measured by flow cytometry to evaluate the frequency of the CD71+ CD235a+ cells in peripheral blood mononuclear cells (PBMC).In vitro assays,CD71+ CD235a+ cells were sorted by flow cytometry and T cells were sorted using CD4+T cell isolation kit,then the T cell proliferation assays were conducted by following groups:T cell + CFSE group;T cell +CFSE co-cultured with CD71+ CD235a+ cells from the young donors;T cell + CFSE co-cultured with CD71+ CD235a+ cells from the older donors.Real-time PCR were used to identify the expression of the immune cytokine secreted by CD71+ CD235a+ cells.Results (1)the results showed a significant increase in the percentage of CD71+ CD235a+ cells in the elderly compared with the young [(9.93± 2.95)％ vs (1.96 ± 1.16)％,t =3.37,P ＜ 0.001];(2)the CD71+ CD235a+ cells from the older donors could suppress the proliferation of the T cells (t =2.91,P＜ 0.05)while from the young group we could not observe this phenomenon(t =0.387,P＞0.05).(3)The results of Real-time PCR revealed that,compared with CD71+ CD235a+ cells from the young,CD71+ CD235a+ cells from the elderly expressed higher levels of Arg-2 (t =9.04,P＜0.01),IL-1β,IL-6 and TGF-β(t =4.51,5.46,6.92,all P＜0.05).Conclusions There are higher frequencies of CD71+ CD235a+ cells in aged samples than the young.And the CD71+CD235a cells from the elderly could secrete more Arg-2,IL-1β,IL-6 and TGF-β to suppress the T cell proliferation.
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Objective To comparative the expression of suppressors of cytokine signaling 3 (SOCS3) in placental tissues between premature delivery and term delivery,and to evaluate the significance of SOCS3 in premature-delivered placental tissues.Meth ods Retrospective analysis was made on 30 patients who had spontaneous premature delivery and 30 pregnant women with normal delivery from February 2013 to October 2013 in our hospital.Reverse transcription and polymerase chain reaction (RT-PCR) was used to detect the mRNA expressions of SOCS3,interferon-α(IFN-α),and interleukin-10 (IL-10).Western-blot was used to detect protein expression of SOCS3,and to analyze the balance of Th1/Th2.Results PCR detection showed that SOCS3-mRNA in the control group was significantly lower than that in the experimental group (P ＜ 0.01).Western-blot test showed that SOCS3 protein expression in the control group was significantly lower than that in the experimental group (P ＜ 0.01).The expression of SOCS3 gene was consistent with its protein expression.PCR detected the significant increase of IFN-α with the secretion of Th1 cytokine,significant decrease of IL-10 with secretion of Th2 cytokine (P ＜ 0.05),and the balance deviation of Th1/Th2 toward Th1.Conclusions SOCS3 is associated with premature delivery,which mechanism might be involved in regulation of the immune balance through janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathways.
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Objective To investigate the expressions of cancerous inhibitor of protein phosphatase 2A (CIP2A) and vascular endothelial growth factor (VEGF) in hepatocellular carcinomas and their clinical significance.Methods The expressions of CIP2A and VEGF proteins were tested with immunohistochemistry in 60 cases of hepatocellular carcinomas and adjacent paracancerous tissues.Results The positive rate of CIP2A in hepatocellular carcinomas was significantly higher than adjacent paracancerous tissues (83.3％ vs 9.5％,P ＜ 0.05).Significant differences were also observed in the expression rate of VEGF between the patients with hepatocellular carcinomas and paracancerous tissues (75.0％ vs 14.3％,P ＜0.05).The expression of CIP2A in hepatocellular carcinomas was significantly positively correlated with its pathological grading,differentiation,and tumor node metastasis (TNM) stage (P ＜ 0.05).The expression of VEGF in hepatocellular carcinomas was significantly positively correlated with its pathological grading,differentiation,and TNM stage (P ＜ 0.05).Significantly positive correlation was found between expressions of CIP2A and VEGF with Spearman correlation analysis (rs =0.465,P ＜ 0.01).Conclusions The abnormal expressions of CIP2A and VEGF gene may promote tumor angiogenesis and progression of a hepatocellular carcinoma.The study supports positive regulation between expressions of CIP2A and VEGF in a hepatocellular carcinoma.
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Interleukin-10 (IL-10) is an immuno-regulatory cytokine,which is well known for its immunosuppressive function.IL-1O can act on a variety of immune cell subsets and play an immunosuppressive effect through a variety of ways.It plays an important role in the tumor immune escape.Recent studies show that IL-10 also has an immune-stimulating function,which is presumably a pluripotent cytokine.This paper will combine the latest literature to summary the positive and negative regulatory roles of IL-10,mediation ways in the tumor and the relationships with prognosis.
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Objective To investigate the effects and mechanism of silicone gel sheeting on hypertrophic scar. Methods Using human hypertrophic scar as a research object, the changes of fibroblast, collagen metabolism and cytokine expression were observed to study the effects of silicone gel sheeting on hypertrophic scar by clinical observation, histomorphology and immunohistochemistry. Results Compared with the control group, the hypertrophic scar became thin, soft and light markedly, and the expression of TGF ? 1, TGF ? (RI) and ? SM actin were significantly decreased in therapeutic group. Conclusion Silicone gel sheeting may have an influence on scar via inhibiting the expression of TGF ? 1, TGF ?(RI) and ? SM actin in fibroblasts.