基质金属蛋白酶在子宫内膜异位症患者中的表达水平及在盆腔粘连中的作用

目的分析基质金属蛋白酶(MMPs)在子宫内膜异位症患者中的表达水平及在盆腔粘连中的作用。方法选取2017年1月-2018年12月在温州市人民医院进行腹腔镜手术的60例子宫内膜异位症患者为观察组,选取同期进行腹腔镜手术的30例非子宫内膜异位症患者为对照组。观察组根据术中盆腔粘连程度分为1组(无或仅有轻度盆腔粘连,子宫内膜异位症Ⅰ~Ⅱ期,24例)和2组(中重度盆腔粘连,子宫内膜异位症Ⅲ~Ⅳ期,36例)。采集3组腹腔液和血清,采用ELISA法检测腹腔液及血清基质金属蛋白酶-2 (MMP-2)、基质金属蛋白酶-3 (MMP-3)、基质金属蛋白酶-7 (MMP-7),血清雌二醇(E2)、黄体生成素(LH)、孕酮(P)、卵泡刺激素(FSH),白细胞介素-6 (IL-6)、白细胞介素-8 (IL-8)、肿瘤坏死因子-α(TNF-α)、C-反应蛋白(CRP)水平。结果 1组腹腔液MMP-2、MMP-3、MMP-7水平显著高于对照组,差异有统计学意义(均P<0. 05),2组腹腔液MMP-2、MMP-3、MMP-7水平显著高于1组(均P<0. 05)。1组血清FSH、LH水平显著高于对照组(均P<0. 05),2组血清FSH、LH水平显著高于1组(均P <0. 05)。1组血清E2、P水平显著低于对照组(均P<0. 05),2组血清E2、P水平显著低于1组(均P<0. 05)。1组血清IL-6、IL-8、TNF-α水平显著高于对照组(均P<0. 05),2组血清IL-6、IL-8、TNF-α水平显著高于1组(均P<0. 05)。结论子宫内膜异位症患者腹腔液中MMPs水平升高,可能与盆腔粘连的发生及严重程度相关。     

The key role of macrophage depolarization in the treatment of COPD with ergosterol both in vitro and in vivo

Macrophages are the most abundant immune cells in the lung, which play an important role in COPD. The anti-inflammatory and anti-oxidation of ergosterol are well documented. However, the effect of ergosterol on macrophage polarization has not been studied. The objective of this work was to investigate the effect of ergosterol on macrophage polarization in CSE-induced RAW264.7 cells and Sprague-Dawley (SD) rats COPD model. Our results demonstrate that CSE-induced macrophages tend to the M1 polarization via increasing ROS, IL-6 and TNF-α, as well as increasing MMP-9 to destroy the lung construction in both RAW264.7 cells and SD rats. However, treatment of RAW264.7 cells and SD rats with ergosterol inhibited CSE-induced inflammatory by decreasing ROS, IL-6 and TNF-α, and increasing IL-10 and TGF-β, shuffling the dynamic polarization of macrophages from M1 to M2 both in vitro and in vivo. Ergosterol also decreased the expression of M1 marker CD40, while increased that of M2 marker CD163. Moreover, ergosterol improved the lung characters in rats by decreasing MMP-9. Furthermore, ergosterol elevated HDAC3 activation and suppressed P300/CBP and PCAF activation as well as acetyl NF-κB/p65 and IKKβ, demonstrating that HDAC3 deacetylation was involved in the effect of ergosterol on macrophage polarization. These results also provide a proof in immunoregulation of ergosterol for therapeutic effects of cultured C. sinensis on COPD patients.     

SLC12A5 interacts and enhances SOX18 activity to promote bladder urothelial carcinoma progression via upregulating MMP7

Solute carrier family 12 member 5 (SLC12A5) has an oncogenic role in bladder urothelial carcinoma. The present study aimed to characterize the molecular mechanisms of SLC12A5 in bladder urothelial carcinoma pathogenesis. Functional assays identified that in bladder urothelial carcinoma SLC12A5 interacts with and stabilizes SOX18, and then upregulates matrix metalloproteinase 7 (MMP7). In vivo and in vitro assays were performed to confirm the effect of SLC12A5’s interaction with SOX18 on MMP7‐mediated bladder urothelial carcinoma progression. SLC12A5 was upregulated in human bladder tumors, and correlated with the poor survival of patients with bladder urothelial carcinoma tumor invasion and metastasis, promoted by SLC12A5 overexpression. We demonstrated that SLC12A5 interacted with SOX18, and then upregulated MMP7, thus enhancing tumor progression. Importantly, SLC12A5 expression correlated positively with SOX18 and MMP7 expression in bladder urothelial carcinoma. Furthermore, SLC12A5 expression was suppressed by miR‐133a‐3p. Ectopic expression of SLC12A5 partly abolished miR‐133a‐3p‐mediated suppression of cell migration. SLC12A5‐SOX18 complex‐mediated upregulation on MMP7 was important in bladder urothelial carcinoma progression. The miR‐133a‐3p/SLC12A5/SOX18/MMP7 signaling axis was critical for progression, and provided an effective therapeutic approach against bladder urothelial carcinoma.     

Matrix metalloproteinase 9 (MMP9) level and MMP9 -1562C>T in patients with obstructive sleep apnea: a systematic review and meta-analysis of case-control studies

BackgroundThe peripheral level of matrix metalloproteinase (MMP)-9 and polymorphism of MMP9 -1562C>T in patients with obstructive sleep apnea (OSA) remains controversial. Therefore, the aims of this systemic review and meta-analysis are to assess the MMP9 level in OSA patients and identify the relationship between MMP9 -1562C>T and OSA susceptibility.MethodsThis systematic review was performed following the PRISMA guideline. We searched for studies in major databases, identifying those indexed from inception to July 3, 2019 which related to MMP9 level, MMP9 -1562C>T and OSA. The pooled standardized mean differences (SMDs) and 95% confidence interval (CI) of MMP9 levels were calculated. In addition, the relationship between MMP9 -1562C>T and OSA susceptibility was assessed by three genetic models. The heterogeneity analysis and calculation of the pooled odds ratio (OR) were also performed, followed by quality assessment using the Newcastle-Ottawa Scale (NOS).ResultsIn sum, our review included 15 eligible studies regarding MMP9 level and three regarding MMP9 -1562C>T. The pooled results showed that peripheral level of MMP9 was increased in OSA patients (SMD = 1.37; 95% CI = 1.15–1.59). Furthermore, significant difference of MMP9 level can be found between severe and mild-to-moderate OSA patients (SMD = 28.17; 95% CI = 4.23–52.11) or between moderate-severe and mild OSA (SMD = 36.62; 95% CI = 12.19–61.04). However, no relationship was observed between MMP9 -1562C>T and OSA susceptibility in three genetic models (Homozygote model, OR = 1.37; 95% CI = 0.87–2.18); (Recessive model, OR = 1.42; 95% CI = 0.83–2.42); (Allele model, OR = 1.07; 95% CI = 0.96–1.18).ConclusionsThis systemic review and meta-analysis indicated that the level of MMP9 was increased in patients with OSA and this increase is relevant to OSA severity. Moreover, the relationship between MMP9 -1562 C>T and OSA susceptibility has currently not been proven by current merging values. Further analyses with larger sample size are required to verify these associations.     

多西他赛联合基质金属蛋白酶抑制剂SB-3CT对前列腺癌移植瘤生长的影响

目的 探讨多西他赛联合基质金属蛋白酶抑制剂（SB-3CT）对前列腺癌移植瘤生长的影响及其可能的作用机制。方法 用前列腺癌PC-3细胞建立裸鼠皮下移植瘤模型，随机分为SB-3CT组（注射SB-3CT溶液25 mg/kg），联合用药组（SB-3CT 25 mg/kg+静脉注射多西他赛溶液 10 mg/kg）和空白对照组（注射等量生理盐水），每组5只。测量肿瘤体积和质量并绘制生长曲线。免疫组化检测移植瘤组织中PDK1和PFKFB4的表达。结果 联合用药组、空白对照组和SB-3CT组平均瘤体质量比较差异有统计学意义（F=29.556，P=0.001），且联合用药组的肿瘤生长速度明显较空白对照组和SB-3CT组慢。免疫组化结果显示，PDK1在联合用药组、空白对照组和SB-3CT组的染色评分分别为（2.33±0.47） 分、（6.00±0.81） 分和（4.33±0.48） 分，组间比较差异有统计学意义（F=18.200，P=0.003），且联合用药组评分低于SB-3CT组（P=0.017）；PFKFB4在3组的染色评分分别为（5.33±0.49） 分、（11.33±0.47） 分和（9.00±1.41） 分，组间比较差异有统计学意义（F=17.643，P=0.003），且联合用药组评分低于SB-3CT组（P=0.011）。结论 多西他赛联合基质金属蛋白酶抑制剂SB-3CT对前列腺癌移植瘤生长具有抑制作用，糖代谢相关酶PDK1和PFKFB4表达下调可能是潜在的分子机制。     

清热活血方佐治支气管扩张症急性加重期临床观察

目的:探讨中药清热活血方佐治支气管扩张症急性加重期的临床疗效。方法:选取2016年10月至2018年10月广州中医药大学第二临床医学院收治的支气管扩张症急性加重期患者116例作为研究对象,按照随机数字表法随机分为对照组和观察组,每组58例。对照组给予排痰、抗感染等西医常规治疗;观察组在对照组治疗的基础上给予中药清热活血方治疗,疗程均为2周。比较2组治疗前后中医证候评分、动脉血气分析指标、血清基质金属蛋白酶-9(MMP-9)和基质金属蛋白酶抑制剂-1(TIMP-1)水平,并比较2组治疗总有效率。结果:治疗后观察组咳嗽痰多、痰中带血、发热口渴、胸闷气急、舌苔、脉象各项评分均低于对照组(P<0.01),血气分析指标中氧分压(PaO 2)、血氧饱和度(SaO 2)高于对照组(P<0.01),二氧化碳分压(PaCO 2)低于对照组(P<0.01),血清MMP-9水平低于对照组(P<0.01),TIMP-1水平高于对照组(P<0.01),治疗总有效率高于对照组(P<0.05)。结论:中药清热活血方佐治支气管扩张症急性加重期,可有效缓解症状,改善动脉血气指标,调节MMP-9、TIMP-1平衡,提高临床疗效。     

醒脑开窍针刺法治疗血管性痴呆患者的疗效

目的:探究醒脑开窍针刺法对血管性痴呆(VD)患者的简易智能状态量表(MMSE)评分、Barthel指数及基质金属蛋白酶(MMP)的影响。方法:选取2017年1月至2018年1月湖南省脑科医院收治的血管性痴呆患者共110例作为研究对象,随机分为观察组和对照组,每组55例。对照组采用常规针刺疗法;观察组采用醒脑开窍针刺疗法,2组疗程均为4周。比较2组患者治疗后治疗有效率及治疗前后MMSE、Barthel指数及MMP水平。结果:观察组、对照组的治疗有效率分别为92.72%和78.18%,差异有统计学意义(P<0.05);治疗后2组患者MMSE和Barthel指数均显著升高,差异有统计学意义(P<0.05),且观察组高于对照组,差异有统计学意义(P<0.05);治疗后2组患者的MMP-2和MMP-9值均下降,差异有统计学意义(P<0.05),且观察者组患者的MMP-2和MMP-9低于对照组,差异有统计学意义(P<0.05)。结论:醒脑开窍针刺法对VD患者疗效显著,能够有效缓解痴呆症状。     

针灸联合龙胆泻肝汤对子宫脱垂患者血清TGF-β1、MMP-2、TIMP-2表达的影响

目的观察针灸联合龙胆泻肝汤治疗子宫脱垂的临床疗效及对患者血清TGF-β1、MMP-2、TIMP-2表达水平的影响。方法 296例子宫脱垂患者随机分为研究组和对照组,每组148例。对照组采用龙胆泻肝汤治疗,研究组在对照组的基础上采用针灸治疗。观察两组治疗前后的盆底功能障碍评分变化、盆底肌力评分变化及血清转化生长因子-β1 (TGF-β1)、基质金属蛋白酶-2(MMP-2)、基质金属蛋白酶抑制剂-2(TIMP-2)表达水平变化,并比较两组临床疗效。结果研究组愈显率优于对照组(P<0.05)。两组治疗后盆底功能障碍评分较同组治疗前降低,研究组低于对照组,差异有统计学意义(P<0.05)。研究组治疗后盆底肌力评分高于对照组(P<0.05)。两组治疗后血清TGF-β1、MMP-2、TIMP-2表达水平与同组治疗前比较,差异有统计学意义(P<0.05);研究组治疗后血清TGF-β1、TIMP-2表达水平高于对照组(P><0.05),MMP-2表达水平低于对照组(P<0.05)。结论针灸联合龙胆泻肝汤能显著提高PDF患者的临床疗效,缓解患者的临床症状,改善患者血清TGF-β1、MMP-2、TIMP-2的表达水平。     

Occludin在非小细胞肺癌组织中的表达及其临床意义

目的:检测非小细胞肺癌（NSCLC）组织中闭合蛋白（Occludin）的表达水平及其临床意义。方法:应用免疫组织化学方法检测73例NSCLC组织及其配对正常肺组织中Occludin蛋白表达水平，分析Occludin蛋白的表达差异及其与临床病理参数的相关性。结果:Occludin蛋白在肿瘤组织中的阳性表达率显著低于配对正常肺组织（P＜0.05）。Occludin蛋白的表达水平与患者性别、肿瘤大小、淋巴结转移、组织学类型、Ki-67表达水平显著相关。结论:Occludin蛋白表达下调与NSCLC细胞的增殖、转移能力相关，在肿瘤进展中发挥重要作用。