الملخص
@#Objective To explore the value of preoperative detection of soluble fragments of cytokeratin-19 (CYFRA21-1), carcinoembryonic antigen (CEA), and postoperative detection of nuclear proliferation associated antigen Ki67 in prognostic evaluation of non-small cell lung cancer patients. Methods The clinicopathological data and follow-up results of patients with non-small cell lung cancer treated in the Department of Thoracic Surgery of the First Affiliated Hospital of Xiamen University in 2017 were collected. CYFRA21-1>3.39 ng/mL was defined as positive, and CEA>5 ng/mL was defined as positive. The receiver operating characteristic curve (ROC curve) of Ki67 expression level was drawn. The maximum area under the curve (AUC) was the cutoff value of Ki67 expression level, and the Ki67 expression level greater than its cutoff value was defined as positive. Cox regression analysis was used to determine the independent risk factors for poor prognosis in patients with non-small cell lung cancer. Results Finally 248 patients were collected, including 125 males and 123 females, with a median age of 61 years (ranging from 30 to 81 years) at the time of surgery. Univariate analysis showed that positive CYFRA21-1, high expression of Ki67, positive CEA, age≥60 years at operation, distant metastasis, lymph node metastasis, maximum tumor diameter>3 cm, and TNM stage Ⅲ were associated with poor prognosis in patients with non-small cell lung cancer. When combined detection of preoperative tumor markers and postoperative Ki67, the prognosis of all negative patients was the best, and that of all positive patients was the worst. Cox regression analysis showed that positive CEA+positive CYFRA21-1+high expression of Ki67 was an independent risk factor for poor prognosis in patients with non-small cell lung cancer (P<0.05). Conclusion The combined detection of preoperative serum CYFRA21-1, CEA, and postoperative Ki67 has important value in evaluating the prognosis of non-small cell lung cancer patients.
الملخص
Recently,an unconventional T cell population (collectively designated as Vδ2 -γδT cell ) has been characterized during the anti-cytomegalovirus immune response in all organ transplant recipients,neo-nates,and healthy individuals.These cytomegalovirus-induced Vδ2 -γδT cells undergo a dramatic and stable ex-pansion after cytomegalovirus infection,in a conventional adaptive way.Similarly,as cytomegalovirus-specific CD8 +αβT cells,they exhibit an effector/memory TEMRA phenotype and cytotoxic effect or functions.This paper reviews the researchs and reports about cytomegalovirus induced-Vδ2 -γδT cell,including its location,phe-notype,and activation,as well as its immunologic mechanism in cytomegalovirus infection,acute or chronic re-jection,and anti-cancer function.
الملخص
Cytomegalovirus is a DNA virus that has the potential to latent-reactivation in human body with immune deficiency.CMV infection is usually asymptoatic in an immunocompetent host,but it may attack immunocompromised population.IL-10 is an important immunoregulatory cytokine,it can attenuate and terminate viral response by multiple immunosuppressive ways:affecting the expression of pro-inflammatory cytokines and chemokines,regulating antigen presenting cells,and restraining effector cell and NK cell responses.Currently,many researchers report that IL-10 has close relationtship with immunologic mechanism of cytomegalovirus in host.This paper reviews the biological effect of IL-10 and effect of IL-10 in cytomegalovirus infection.
الملخص
<p><b>OBJECTIVE</b>To investigate the role of GATA4 gene in the endocardial cushions development.</p><p><b>METHODS</b>Target gene eukaryote expression vectors were constructed by pcDNA3.1(-) vector plasmid, and were identified by DNA sequence analysis. Recombinant plasmids were transfected into Hela cells with lipofectamine 2000, meanwhile Hela cells transfected with empty vector or those without transfection served as transfection control group and blank control group, respectively. Real-time PCR and Western blot were performed to detect the relative expression of mRNA and protein of transcription factors GATA4, Sox9, Scleraxis and ECM proteins Aggrecan, Tenascin in each group.</p><p><b>RESULTS</b>The relative mRNA expression of GATA4 in experimental group was significantly higher than in transfection control group and blank control group. GATA4 mRNA expression in Hela(GATA4), Hela(H436Y), Hela(Null) and Hela group was 310.83 ± 2.39, 146.35 ± 1.74, 0.94 ± 0.32, 1.00 ± 0.28, respectively (F = 72.508, P < 0.05). Western blot results were consistent with the results obtained by qRT-PCR. The relative mRNA and protein expressions of Sox9, Scleraxis, Aggrecan and Tenascin in both experimental groups were significantly higher than that in transfection control group and blank control group (P < 0.05), and above gene expressions were significantly downregulated in GATA4(H436Y) group, while they were similar between transfection control group and blank control group (all P > 0.05).</p><p><b>CONCLUSIONS</b>GATA4 H436Y mutation reduces it's transcriptional activation, which might serve as a theoretical framework to demonstrate the roles of GATA4 gene in endocardial cushion development.</p>