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CD44~+喉癌细胞的干细胞生物学特性初步研究

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中华耳鼻咽喉头颈外科杂志 2008年第11期43卷 845-850页

作者：于丹金春顺赵胤许承弼吉林大学第二医院耳鼻咽喉头颈外科

目的初步研究透明质酸盐受体(hyalurate receptor)CD~+喉癌细胞的干细胞生物学特性。方法原代培养喉癌细胞,利用亲和板结合分离法,将 CD~+和 CD~-肿瘤细胞分选出来,继续常规培养,比较 CD~+与 CD~-肿瘤细胞在功能状态、细胞周期、分化状... 详细信息

目的初步研究透明质酸盐受体(hyalurate receptor)CD~+喉癌细胞的干细胞生物学特性。方法原代培养喉癌细胞,利用亲和板结合分离法,将 CD~+和 CD~-肿瘤细胞分选出来,继续常规培养,比较 CD~+与 CD~-肿瘤细胞在功能状态、细胞周期、分化状态、克隆形成能力及形态等方面的差异。结果 CD~+细胞在喉癌细胞中所占的百分率为49.8%～53.5%,中位数为51.3%,亲和板结合法分选出 CD~+细胞,继续常规培养后恢复原始比例。CD~+细胞中 RNA 含量低,细胞处于 G0和 G1期的比例高于 CD~-细胞。CD~+细胞中正常鳞状上皮干细胞角蛋白(cytokeratin 14,CK14)表达强阳性或阳性,而分化的上皮细胞标记物外皮蛋白(involucrin)表达弱阴性或阴性。倒置显微镜下观察,CD~+细胞为多角形,突起多;而 CD~-细胞为梭形,突起较少。对 CD~+细胞进行有限稀释单细胞克隆培养,产生的子代克隆集落出现了异质性细胞,而 CD~-细胞未能产生异质性子代细胞。与 CD~-细胞相比,CD~+细胞表现出较高的克隆形成能力说明其具有较强的增殖能力。结论 CD~+喉癌细胞具有干细胞的某些特性,肿瘤干细胞可能存在于 CD~+细胞内。

关键词：肿瘤细胞,培养的肿瘤干细胞喉肿瘤癌,鳞状细胞

Association between MTHFR c.677C>T variant and erectile dysfunction among males attending fertility clinic

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Asian Journal of Andrology 2024年第1期26卷 41-45页

作者： shun Bai Ming-Zhen Li Yang-Yang Wan Xue-chun Hu Yi-Xun Liu Xian-Hong Tong Tong-Hang Guo Lu Zong Ran Liu Yuan-Qi Zhao Ping Xiang Bo Xu Xiao-Hua Jiang Department of Gynecology and Obstetrics Reproductive and Genetic HospitalThe First Affiliated Hospital of University of Science and Technology of ChinaDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001China NHC Key Laboratory of Male Reproduction and Genetics Guangdong Provincial Reproductive Science Institute(Guangdong Provincial Fertility Hospital)Guangzhou 510600China Department of Urology The First Affiliated Hospital of University of Science and Technology of ChinaDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001China Wannan Medical College Wuhu 241002China

Genetic risk factors have been shown to contribute to the development of sexual ***,the role of methylenetetrahydrofolate reductase(MTHFR)gene variants in the risk of erectile dysfunction(ED)remains *** this study,we recruited 1254 participants who underwent ED assessed by the International Index of Erectile *** MTHFR c.677C>T variant was also measured by fluorescence polymerase chain reaction(PCR).No significant difference in the genotypic frequency of the MTHFR C677T polymorphism(CC,CT,and TT)was observed between men from the ED and non-ED *** addition,on binary logistic regression analysis,both crude and adjusted models showed that the risk of ED was not significantly associated with the C677T ***,a significantly higher frequency of the 677TT polymorphism was found in severe and moderate ED(P=O.02).The positive correlation between the MTHFR 677TT polymorphism and severe ED was confirmed by logistic regression analysis,even after adjusting for potential confounders(odds ratio[OR]=2.46,95%confidence interval[CI]:1.15-5.50,P=0.02).These findings suggest a positive correlation between the MTHFR 677TT polymorphism and the risk of severe *** of MTHFR gene polymorphisms may provide complementary information for ED patients during routineclinicaldiagnosis.

关键词： erectile dysfunction gene variant genetic risk factors methylenetetrahydrofolate reductase sexual function

喉癌细胞CD44~+CD133~+高致瘤亚群的生物学特性

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中华肿瘤杂志 2009年第2期31卷 99-103页

作者：于丹金春顺陈鸥文连姬高丽芳吉林大学第二临床医院耳鼻咽喉头颈外科吉林大学基础医学院病理生理教研室

目的筛选喉癌细胞中的高致瘤亚群,探讨其作为肿瘤干细胞的生物学特性。方法原代培养喉癌细胞,采用流式细胞仪分选CD44~+、CD133~+、CD44~+CD133~+、CD44~+CD133~-细胞,并分别以1×10~6、1×10~5、1×10~4、1×10~3个/只接种于裸小鼠左... 详细信息

目的筛选喉癌细胞中的高致瘤亚群,探讨其作为肿瘤干细胞的生物学特性。方法原代培养喉癌细胞,采用流式细胞仪分选CD44~+、CD133~+、CD44~+CD133~+、CD44~+CD133~-细胞,并分别以1×10~6、1×10~5、1×10~4、1×10~3个/只接种于裸小鼠左腋皮下,观察各亚群成瘤时间、成瘤率、平均瘤重及肿瘤体积,筛选出在极低细胞浓度下的高致瘤亚群。采用Boyden小室体外侵袭实验,检测各亚群细胞的侵袭能力。采用免疫细胞化学染色检测各亚群细胞中干细胞抗原-1(SCA-1)及整合素β1的表达。采用逆转录聚合酶链反应(RT-PCR)和Western blot法,检测各亚群细胞中Bmi-1基因的表达。结果CD44~+CD133~+细胞以1×10~3个/只接种于裸小鼠,可以成瘤。当各亚群细胞以1×10~6个/只接种于裸小鼠4周后,CD44~+CD133~+细胞接种组裸小鼠的肿瘤体积和重量分别为(7726.81±196.93)mm~3和(5.51±0.12)g,均大于CD44~+、CD44~+CD133~-及未分选细胞接种组(均P0.05)。CD44~+CD133~+细胞24 h的侵袭细胞数为83.62±1.61,显著高于其他各亚群喉癌细胞。CD44~+CD133~+细胞高表达整合素β1和SCA-1。Bmi-1 mRNA在CD44~+CD133~+细胞中的表达水平为0.951±0.112,显著高于CD44~+CD133~-细胞和未分选的喉癌细胞(0.532±0.214和0.268±0.193,均P<0.01);Bmi-1蛋白在CD133~+和CD44~+CD133~+细胞中高表达,而在CD44~+、CD44~+CD133~-和未分选的喉癌细胞中仅有少量表达。结论CD44~+CD133~+喉癌细胞具有高致瘤性及肿瘤干细胞的生物学特性,可能是喉癌恶性增殖的根源,并有望成为喉癌治疗的新靶点。

关键词：喉肿瘤肿瘤干细胞致瘤性

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奥曲肽对Hep-2细胞增殖的抑制作用

中国实验诊断学 2010年第6期14卷 817-820页

作者：靳红金宏林金春顺哈尔滨医科大学附属肿瘤医院妇科哈尔滨150086 吉林大学第二医院耳鼻咽喉科长春130041

目的喉癌是喉部最常见的恶性肿瘤,喉癌的发病率目前有逐年提高的趋势。近年来的研究表明,奥曲肽对许多实体肿瘤及正常组织有抗增生作用,还具有抑制肿瘤细胞增殖、诱导肿瘤细胞凋亡的作用。本实验旨在研究奥曲肽对喉癌Hep-2细胞增殖和凋... 详细信息

目的喉癌是喉部最常见的恶性肿瘤,喉癌的发病率目前有逐年提高的趋势。近年来的研究表明,奥曲肽对许多实体肿瘤及正常组织有抗增生作用,还具有抑制肿瘤细胞增殖、诱导肿瘤细胞凋亡的作用。本实验旨在研究奥曲肽对喉癌Hep-2细胞增殖和凋亡的作用及其机制的初步探讨。方法通过MTT比色试验和测定细胞生长曲线研究奥曲肽对Hep-2细胞增殖的作用,经流式细胞仪检测研究奥曲肽对Hep-2细胞凋亡和细胞周期的影响。结果奥曲肽浓度在0.05μg/ml-20μg/ml范围内对Hep-2细胞均有抑制作用,48 h时最显著,但血清组与无血清组比较,抑制率明显下降(P0.05)。结论本研究结果提示奥曲肽抑制Hep-2细胞增殖可能是通过诱导G0/G1阻滞和诱导细胞凋亡而实现的,为喉癌的综合治疗提供了理论依据。

关键词：喉癌奥曲肽 Hep-2细胞

TDLAS在森林可燃物热解气体多组分同步测量中的应用分析

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光谱学与光谱分析 2024年第3期44卷 625-631页

作者：郭松杰王璐鹏陈金铮马云梁安卢志民姚顺春华南理工大学电力学院广东广州510640 云浮市消防救援支队广东云浮527399

森林可燃物热解的研究,对森林火灾预警和控制具有重要意义。森林可燃物热解过程中主要生成CO、 CO_(2)和CH_(4)等含碳气体,这些气体的不断释放容易引发森林火灾并加剧温室效应,快速准确检测这三种组分的浓度有利于火灾早期预警和大气环... 详细信息

森林可燃物热解的研究,对森林火灾预警和控制具有重要意义。森林可燃物热解过程中主要生成CO、 CO_(2)和CH_(4)等含碳气体,这些气体的不断释放容易引发森林火灾并加剧温室效应,快速准确检测这三种组分的浓度有利于火灾早期预警和大气环境保护。通过频分复用结合可调谐二极管激光吸收光谱(TDLAS)技术准确测量了六种山林树种样品热解气体中CO、 CO_(2)和CH_(4)三种组分的浓度,证明了频分复用-TDLAS技术对森林可燃物热解气体多组分同步测量的适用性。首先,介绍了频分复用-TDLAS技术的基本原理,确定了三种组分互不干扰、且谱线强度适宜的吸收谱线。其次,为了准确反演不同的浓度,对二次谐波(2f)信号和二次谐波/直流(2f/DC)信号的特性进行了研究。通过Simulink仿真的方式,比较了利用2f信号和2f/DC信号反演不同浓度准确性的差异,结果表明2f/DC信号具有更大的线性区间,适用于森林可燃物热解气体中不同浓度组分的测量。最后,利用两支中心波长分别为1 580.0和1 653.7 nm的分布式反馈(DFB)激光器搭建了CO、 CO_(2)和CH_(4)同步测量的实验装置。在900℃管式炉中对六种树种样品进行热解以及热解气体制备,利用Herriott吸收池测量了三种组分的2f/DC信号,通过标准气体建立标定模型获得了热解气体中三种组分的绝对浓度。结果显示,三种组分的2f/DC信号峰值与浓度满足良好的线性关系,线性度大于0.995,且在焦炭气化反应和Boundouard反应的作用下,六种树种样品热解气体中CO浓度明显高于CO_(2)和CH_(4)。通过分析枫香叶样品的光谱,表明在2 s测量时间内,该光谱系统对于CO、 CO_(2)和CH_(4)的最低检测限低于0.008%,灵敏度优于0.005%,满足森林火灾预警的需求。该研究为森林可燃物热解气体多组分同步测量以及森林火灾预警提供了方法参考。

关键词：森林火灾可燃物热解 TDLAS 频分复用同步测量

喉鳞状细胞癌中RASSF1A基因启动子区甲基化及蛋白表达

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吉林大学学报（医学版） 2006年第2期32卷 326-329页

作者：许承弼滕博李长青金春顺吉林大学第二医院耳鼻咽喉-头颈外科吉林长春130041

目的:探讨RASSF1A基因启动子区甲基化与喉癌的关系。方法:运用甲基化特异性PCR,检测RASSF1A基因在48例喉癌组织、相对应癌旁组织及48例正常人外周血中的启动子区甲基化情况。用Westernblotting方法检测喉癌组织、癌旁组织及正常人外周血... 详细信息

目的:探讨RASSF1A基因启动子区甲基化与喉癌的关系。方法:运用甲基化特异性PCR,检测RASSF1A基因在48例喉癌组织、相对应癌旁组织及48例正常人外周血中的启动子区甲基化情况。用Westernblotting方法检测喉癌组织、癌旁组织及正常人外周血中RASSF1A表达情况。结果:在48例喉癌组织、相对应的癌旁组织和48份正常人外周血中,RASSF1A基因启动子区分别有34例(70.83%)、11例(22.92%)和6例(12.50%)发生了甲基化,喉癌组织甲基化程度明显高于癌旁组织和正常人外周血(P<0.05)。在48例喉癌组织中27例(56.25%)不能正常表达RASSF1A蛋白,而相对应癌旁组织中仅有8例(16.67%),喉癌组织中RASSF1A蛋白的表达程度明显低于癌旁组织(P<0.01)。启动子区发生甲基化的34例喉癌组织中共有25例(73.53%)呈弱阳性,而7例未发生甲基化的喉癌组织中为1例(14.29%),两组间比较差异具有显著性(P<0.05)。结论:RASSF1A基因启动子区甲基化与喉癌的发生有关,有望成为喉癌诊断的分子标志。

关键词：喉肿瘤 RASSF1A基因 DNA甲基化甲基化特异性PCR

A multicenter prospective study on the management of hepatoblastoma in children:a report from the Chinese Children's Cancer Group

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World Journal of Pediatrics 2024年第6期20卷 590-601页

作者： Meng-Jie Tang Xiao-Li Ma Xiang-Ling He Wei-Hua Pan Xiao-Hong Zhang Sha-Yi Jiang Ju Gao Fu Lie Wei Yao Song Gu Wei-Ling Zhang Qiang Zhao Shi-Hao Huang Yong-Jun Fang Wei Liu Hui-Zhong Niu chun-Mei Wang Li-Rong Sun Hui Gao Yun-Peng Dai shun-Gen Huang Zhi-Yong Zhong Xi-Ge Wang Zhong-Rong Li Liang-chun Yang Ye-Ming Wu Huan-Min Wang Xin Sun Xiao-Jun Yuan Department of Pediatric Hematology/Oncology Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineNo.1665Kongjiang RoadYangpu DistrictShanghai 200092China Medical Oncology Department Pediatric Oncology CenterBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China Department of Hematology/Oncology Children's Medical CenterHunan Provincial People's HospitalThe First Affiliated Hospital of Hunan Normal UniversityChangsha 41005China Department of Pediatric Surgery Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Hematology/Oncology Guangzhou Women and Children's Medical CenterNational Children's Medical Center for South Central RegionGuangzhou 510623China Department of Hematology Shanghai Children's HospitalShanghai Jiao Tong UniversityShanghai 200062China Department of Pediatrics West China Second University HospitalSichuan UniversityChengdu 610041China Department of Hematology/Oncology Qilu Children's Hospital of Shandong UniversityJinan 250022China Department of Pediatric Surgery Children's Hospital of Fudan UniversityShanghai 201102China Department of General Surgery Shanghai Children's Medical Center(National Children's Medical Center-Shanghai)Shanghai Jiao Tong University School of MedicineShanghai 200127China Department of Pediatrics Beijing Tongren HospitalCapital Medical UniversityBeijing 100730China Department of Pediatric Oncology Tianjin Medical University Cancer Institute and HospitalTianjin 300060China Department of Hematology/Oncology Children's Hospital of Nanjing Medical UniversityNanjing 210008China Department of Hematology/Oncology Henan Children's HospitalZhengzhou 450018China Department of Pediatric General Surgery Hebei Children's Hospital of Hebei Medical UniversityShijiazhuang City 050031China Children's Hospital the First Affliated Hospital of Zhengzhou UniversityZhengzhou 450052China Department of Paediatric

Background This study aimed to identify survival risk factors in Chinese children with hepatoblastoma(HB)and assess the effectiveness of the new treatment protocol proposed by the Chinese Children's Cancer Group(CCCG)in *** A multicenter,prospective study that included 399 patients with HB from January 2015 to June 2020 was *** demographics,treatment protocols,and other related information were *** regression models and Kaplan-Meier curve methods were *** The 4-year event-free survival(EFS)and overall survival(OS)were 76.9 and 93.5%,*** 4-year EFS rates for the very-low-risk,low-risk,intermediate-risk,and high-risk groups were 100%,91.6%,81.7%,and 51.0%,*** 4-year 0S was 100%,97.3%,94.4%,and 86.8%,*** regression analysis found that age,tumor rupture(R+),and extrahepatic tumor extension(E+)were independent prognostic factors.A total of 299 patients had complete remission,and 19 *** with declining alpha-fetoprotein(AFP)>75%after the first two cycles of neoadjuvant chemotherapy had a better EFS and OS than those≤75%.Conclusions The survival outcome of HB children has dramatically improved since the implementation of CCCG-HB-2016 ***≥8 years,R+,and E+were independent risk factors for *** with a declining AFP>75%after the first two cycles of neoadjuvant chemotherapy had better EFS and OS.

关键词： Alpha-fetoprotein Hepatoblastoma Multicenter Prospective study Survival

Effect and Safety of Herbal Medicine Foot Baths in Patients with Diabetic Peripheral Neuropathy:A Multicenter Double-Blind Randomized Controlled Trial

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Chinese Journal of Integrative Medicine 2024年第3期30卷 195-202页

作者： HUANG Hao-yue LIN Yu-ping WEI Hua FU Yu ZHOU Yue-hong FANG Zhao-hui QIU Xiao-tang WANG Mei LI Qing-bo LI Shan-shan WANG Shi-dong DAI Fang LIU Zhen-jie ZHAO Ling WEN Jian-xuan WU Li-yan ZENG Hui-yan ZHANG jin-ming LU Qi-yun HE Liu SONG Wei SUN Lu LUO Lu-lu HE Jia-li XIE Wen-wen LIANG Qing-shun HUANG Yuan ZHU Sheng-ling LONG Jie-er GAO Zhi-juan WEN Ze-huai LI chun-ji OUYANG Wen-wei LI Geng WU Ming-hui LI An-xiang HUANG jin-zhu Sanjoy K Paul TANG Xian-yu FAN Guan-jie Department of Endocrinology Guangdong Provincial Hospital of Chinese MedicineGuangzhou510120China The Second Clinical College of Guangzhou University of Chinese Medicine Guangzhou510120China Department of Endocrinology The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou510120China Guangdong Provincial Academy of Chinese Medical Sciences Guangzhou510120China Department of Endocrinology The First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Department of Endocrinology Liuyang Hospital of Chinese MedicineChangsha410000China Department of Endocrinology The First Affiliated Hospital of Anhui University of Chinese MedicineHefei230000China Department of Endocrinology Hainan Provincial Hospital of Traditional Chinese MedicineHaikou570100China Department of Endocrinology The Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang110000China Department of Geriatric Luoyang No.1 Hospital of Traditional Chinese MedicineLuoyangHenan Province471000China Department of Endocrinology The Second Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Department of Endocrinology Beijing University of Chinese Medicine Affiliated Dongzhimen HospitalBeijing100000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Melbourne EpiCentre The University of Melbourne and Melbourne HealthMelbourne3013Australia

Objective:To evaluate the effect and safety of foot baths with Tangbi Waixi Decoction(TW)in treating patients with diabetic peripheral neuropathy(DPN).Methods:It is a multicenter double-blinded randomized controlled *** with DPN were recruited between November 18,2016 and May 30,2018 from 8 hospitals in *** patients received basic treatments for glycemic *** received foot baths with TW herbal granules either 66.9 g(intervention group)or 6.69 g(control group)for 30 min once a day for 2 weeks and followed by a 2-week rest,as a therapeutic *** the Toronto Clinical Scoring System total score(TCSS-TS)6 points,the patients received a total of 3 therapeutic courses(for 12 weeks)and were followed up for 12 *** primary outcome was change in TCSS-TS score at 12 and 24 *** outcomes included changes in bilateral motor nerve conduction velocity(MNCV)and sensory nerve conduction velocity(SNCV)of the median and common peroneal *** was also ***:Totally 632 patients were enrolled,and 317 and 315 were randomized to the intervention and control groups,*** the 12-week intervention,patients in both groups showed significant declines in TCSSTS scores,and significant increases in MNCV and SNCV of the median and common peroneal nerves compared with pre-treatment(P0.05),and no serious adverse event was related with ***:Treatment of TW foot baths was safe and significantly benefitted patients with DPN.A low dose of TW appeared to be more effective than a high dose.(Registry *** CTR-IOR-16009331)

关键词： diabetic peripheral neuropathy herbal medicine foot baths Chinese medicine randomized controlled trial Tangbi Waixi Decoction

Haplotype-resolved and chromosome-scale genomes provide insights into co-adaptation between the Amur tiger and Amur leopard

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Zoological Research 2024年第3期45卷 464-467页

作者： Hai-Meng Li Bo-Yang Liu Min-Hui Shi Le Zhang Shang-Chen Yang Sunil Kumar Sahu Liang-Yu Cui Shan-Lin Liu Nicolas Dussex Yue Ma Dan Liu Wei-Yao Kong Hao-Rong Lu Yue Zhao Love Dalén Huan Liu Tian-Ming Lan Guang-shun Jiang Yan-chun Xu College of Wildlife and Protected Area Northeast Forestry UniversityHarbinHeilongjiang 150040China State Key Laboratory of Agricultural Genomics BGI ResearchShenzhenGuangdong 518083China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China College of Life Sciences Zhejiang UniversityHangzhouZhejiang 310058China BGI Research WuhanHubei 430074China Department of Entomology College of Plant ProtectionChina Agricultural UniversityBeijing 100193China Centre for Palaeogenetics Svante Arrhenius väg 20CStockholm 10691Sweden Department of Zoology Stockholm UniversityStockholm 10691Sweden Department of Bioinformatics and Genetics Swedish Museum of Natural HistoryStockholm 10691Sweden Heilongjiang Siberian Tiger Park HarbinHeilongjiang 150000China jinlin Provincial Academy of Forestry Science ChangchunJilin 130033China China National GeneBank BGI ResearchShenzhenGuangdong 518120China Guangdong Provincial Key Laboratory of Genome Read and Write BGI ResearchShenzhenGuangdong 518083China BGI Life Science Joint Research Center Northeast Forestry UniversityHarbinHeilongjiang 150040China Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected AreaNortheast Forestry UniversityHarbinHeilongjiang 150040China National Forestry and Grassland Administration Research Center of Engineering Technology for Wildlife Conservation and Utilization HarbinHeilongjiang 150040China

DEAR EDITOR,Big cats,such as Amur tigers(Panthera tigris altaica)and Amur leopards(*** orientalis),are apex predator and have evolved specialized traits for hunting and carnivory(Moya et al.,2022),thus playing a crucial role in maintaining biodiversity and ecosystem integrity by regulating prey-predator ***,human-induced pressures,habitat fragmentation,and environmental alterations have restricted these species in small and isolated ***,all extant big cats are categorized as endangered or threatened according to their conservation *** tigers and Amur leopards share overlapping geographic ranges,habitats,and certain prey species in the forests of Northeast Asia(Jiang et al.,2015).To reduce interspecies conflict,these carnivores exhibit differentiated dietary and temporal *** tigers predominantly prey on large ungulates,while Amur leopards hunt small to medium-sized animals(Sugimoto et al.,2016).Additionally,they occupy different temporal niches,with tigers being active at night and leopards more active during the *** spatial and temporal niche partitioning,interspecific competition between these two species is ***,benefiting from their greater size,have a competitive advantage over leopards,which can manifest in occasional leopard predation by tigers and declines in leopard populations with increasing tiger density(Jiang et al.,2015).Tigers also displace leopards from marginal habitats in nature reserves where they coexist.

关键词： habitat Panthera resolved