搜索到5792篇“ LEUKOCYTE“的相关文章
Human leukocyte antigen and donor-specific antibodies in liver transplantation
2025年
In this article,we comment on an article published in a recent issue of the World Journal of Gastroenterology.We specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in pediatric liver transpl-antation(LT),as well as the relationship between immune rejection after LT and DSA.Currently,LT remains the standard of care for pediatric patients with end-stage liver disease or severe acute liver failure.However,acute and chronic re-jection continues to be a significant cause of graft dysfunction and loss.HLA mismatch significantly reduces graft survival and increases the risk of acute rejection.Among them,D→R one-way mismatch at three loci was significantly related to graft-versus-host disease incidence after LT.The adverse impact of HLA-DSAs on LT recipients is already established.Therefore,the evaluation of HLA and DSA is crucial in pediatric LT.
QimudesirenSha-Na ChenLi-Ren Qian
人类白细胞抗原相合同胞新鲜脐血移植治疗儿童β重型地中海贫血
2025年
背景:异基因造血干细胞移植是目前根治重型地中海贫血最有效的方法,然而仅有不到一半的患者能找到相合的骨髓或外周血干细胞。同胞来源脐血干细胞与骨髓和外周血干细胞具有不同的特征,是重型地中海贫血患者移植治疗的一种潜在造血干细胞替代来源。目的:探讨应用人类白细胞抗原相合同胞新鲜脐血移植治疗儿童β重型地中海贫血的疗效。方法:选择2010年6月至2020年6月南方医科大学南方医院收治的β重型地中海贫血患儿48例,男28例,女20例,中位年龄4岁,均接受人类白细胞抗原相合同胞新鲜脐血移植治疗,脐血移植前均采用清髓性不含抗胸腺细胞球蛋白的预处理方案,脐血移植后均采用环孢素A+吗替麦考酚酯+/-短程甲氨蝶呤预防移植物抗宿主病。结果与结论:(1)48例患儿输注的总有核细胞中位数为8.17×10^(7)/kg,输注的CD34^(+)细胞中位数为2.40×10^(5)/kg,脐血移植后中位随访时间98个月,44例植入成功,粒细胞和血小板植入中位时间分别为28 d和31 d,其中37例移植后植入证据检测为供者型完全嵌合,7例移植后早期检测为供受者稳定混合嵌合;(2)44例植入成功患儿中,4例发生急性移植物抗宿主病,分别为Ⅰ级(n=2)和Ⅱ级(n=2),受累器官均为皮肤,均未发生慢性移植物抗宿主病;(3)脐血移植后,48例患儿中5例发生巨细胞病毒感染及激活,12例发生败血症,3例发生侵袭性真菌病,21例发生口腔炎,8例发生出血性膀胱炎,1例发生肝静脉闭塞;(4)48例患儿中,47例存活,1例在移植后28 d因重症肺炎合并急性心力衰竭死亡,43例无病存活,3例发生原发性植入失败,1例发生移植后全血细胞减少,5年总生存率和无病生存率分别为98%和89%,1年时移植相关死亡的累计发病率为2.1%;(5)结果显示,人类白细胞抗原相合同胞新鲜脐血移植治疗儿童β重型地中海贫血的效果良好,移植物抗宿主病的发生风险低。
温建芸陈丽白何岳林冯晓勤刘璇徐肖肖李秀刘秋君吴学东
关键词:异基因造血干细胞移植移植物抗宿主病
Leukocyte-Specific Morrbid Promotes Leukocyte Differentiation and Atherogenesis
2024年
Monocyte-to-M0/M1 macrophage differentiation with unclear molecular mechanisms is a pivotal cellular event in many cardiovascular diseases including atherosclerosis.Long non-coding RNAs(lncRNAs)are a group of protein expression regulators;however,the roles of monocyte-lncRNAs in macrophage differentiation and its related vascular diseases are still unclear.The study aims to investigate whether the novel leukocyte-specific lncRNA Morrbid could regulate macrophage differentiation and atherogenesis.We identified that Morrbid was increased in monocytes and arterial walls from atherosclerotic mouse and from patients with atherosclerosis.In cultured monocytes,Morrbid expression was markedly increased during monocyte to M0 macrophage differentiation with an additional increase during M0 macrophage-to-M1 macrophage differentiation.The differentiation stimuli-induced monocyte-macrophage differentiation and the macrophage activity were inhibited by Morrbid knockdown.Moreover,overexpression of Morrbid alone was sufficient to elicit the monocyte-macrophage differentiation.The role of Morrbid in monocyte-macrophage differentiation was also identified in vivo in atherosclerotic mice and was verified in Morrbid knockout mice.We identified that PI3-kinase/Akt was involved in the up-regulation of Morrbid expression,whereas s100a10 was involved in Morrbid-mediated effect on macrophage differentiation.To provide a proof of concept of Morrbid in pathogenesis of monocyte/macrophage-related vascular disease,we applied an acute atherosclerosis model in mice.The results revealed that overexpression of Morrbid enhanced but monocyte/macrophage-specific Morrbid knockout inhibited the monocytes/macrophages recruitment and atherosclerotic lesion formation in mice.The results suggest that Morrbid is a novel biomarker and a modulator of monocyte-macrophage phenotypes,which is involved in atherogenesis.
Di XiangLei JiangQiong YuanYang YuRuiming LiuMeiting ChenZheng KuaiWendyZhangFan YangTingting WuZhiyu HeZuhui KeWanzi HongPengcheng HeNing TanYeying SunZhen ShiXuebiao WeiJianfang LuoXiaoqiu TanYuqing HuoGangjian QinChunxiang Zhang
关键词:MOR
Leukocyte cell-derived chemotaxin 2(LECT2)regulates liver ischemia-reperfusion injury
2024年
Background and aim Hepatic ischemia–reperfusion injury(IRI)is a significant challenge in liver transplantation,trauma,hypovolemic shock,and hepatectomy,with limited effective interventions available.This study aimed to investigate the role of leukocyte cell-derived chemotaxin 2(LECT2)in hepatic IRI and assess the therapeutic potential of Lect2-short hairpin RNA(shRNA)delivered through adeno-associated virus(AAV)vectors.Materials and methods This study analyzed human liver and serum samples from five patients undergoing the Pringle maneuver.Lect2-knockout and C57BL/6J mice were used.Hepatic IRI was induced by clamping the hepatic pedicle.Treatments included recombinant human LECT2(rLECT2)and AAV-Lect2-shRNA.LECT2 expression levels and serum biomarkers including alanine aminotransferase(ALT),aspartate aminotransferase(AST),creatinine,and blood urea nitrogen(BUN)were measured.Histological analysis of liver necrosis and quantitative reverse-transcription polymerase chain reaction were performed.Results Serum and liver LECT2 levels were elevated during hepatic IRI.Serum LECT2 protein and mRNA levels increased post reperfusion.Lect2-knockout mice had reduced weight loss;hepatic necrosis;and serum ALT,AST,creatinine,and BUN levels.rLECT2 treatment exacerbated weight loss,hepatic necrosis,and serum biomarkers(ALT,AST,creatinine,and BUN).AAV-Lect2-shRNA treatment significantly reduced weight loss,hepatic necrosis,and serum biomarkers(ALT,AST,creatinine,and BUN),indicating therapeutic potential.Conclusions Elevated LECT2 levels during hepatic IRI increased liver damage.Genetic knockout or shRNA-mediated knockdown of Lect2 reduced liver damage,indicating its therapeutic potential.AAV-mediated Lect2-shRNA delivery mitigated hepatic IRI,offering a potential new treatment strategy to enhance clinical outcomes for patients undergoing liver-related surgeries or trauma.
Meng-Qi DongYuan XieZhi-Liang TangXue-Wen ZhaoFu-Zhen LinGuang-Yu ZhangZhi-Hao HuangZhi-Min LiuYuan LinFeng-Yong LiuWei-Jie Zhou
Leukocyte immunoglobulin-like receptor B2:A promising biomarker for colorectal cancer被引量:1
2024年
According to the latest global cancer statistics,colorectal cancer(CRC)has emerged as the third most prevalent malignant tumor across the globe.In recent decades,the medical field has implemented several levels of CRC screening tests,encompassing fecal tests,endoscopic examinations,radiological examinations and blood tests.Previous studies have shown that leukocyte immunoglobulin-like receptor B2(LILRB2)is involved in inhibiting immune cell function,immune evasion,and promoting tumor progression in acute myeloid leukemia and nonsmall cell lung cancer.However,its interaction with CRC has not been reported yet.Recently,a study published in the World Journal of Gastroenterology revealed that LILRB2 and its ligand,angiopoietin-like protein 2,are markedly overexpressed in CRC.This overexpression is closely linked to tumor progression and is indicative of a poor prognosis.The study highlights the potential of utilizing the concentration of LILRB2 in serum as a promising biomarker for tumors.However,there is still room for discussion regarding the data processing and analysis in this research.
Wen-Zhuo ZhaoHong-Gang WangXiao-Zhong Yang
Integrated analyses of transcriptomics and network pharmacology reveal leukocyte characteristics and functional changes in subthreshold depression,elucidating the curative mechanism of Danzhi Xiaoyao powder
2024年
Objective:To investigate the molecular mechanism and identify potential drugs for subthreshold depression(SD),and elucidate the detalied mechanism of Danzhi Xiaoyao powder(DZXY)in SD.Methods:Using RNA-sequencing,we identified differentially expressed genes(DEGs)in leukocytes of SD compared to healthy controls,deciphered their functions and pathways,and identified the hub genes of SD.We also assessed changes in leukocyte transcription factor activity in patients with SD using the TELis platform.The Connectivity Map database was retrieved to screen candidate drugs for SD.Based on network pharmacology,we elucidated the"multi-component,multi-target,and multi-pathway"mechanism of DZXY in the treatment of SD.Results:We identified 1080 DEGs(padj<0.05 and|log2(fold change)l≥1&protein coding)in the leukocytes of patients with SD.These DEGs,including hub genes,were primarily involved in immune and inflammatory response-related processes.Transcription factor activity analysis revealed similarities between the leukocyte transcriptome profile in SD and the conserved transcriptional response to adversities in immune cells.Connectivity Map analysis identified 28 potential drugs for SD treatment,particularly SB-202190 and TWS-119.Constructing the"Direct Compounds-Direct Targets-Pathways"network for DZXY and SD revealed the curative mechanisms of DZXY in SD,primarily including inflammatory response,lipid metabolism,immune response,and other processes.Conclusion:These results provide new insights into the characteristics and functional changes of leukocytes in SD,partially illustrate the pathogenesis of SD,and suggest potential drugs for SD.The curative mechanisms of DZXY in SD are also partially elucidated.
Kunyu LiLeiming YouJianhua ZhenGuangrui HuangTing WangYanan CaiYunan ZhangAnlong Xu
关键词:LEUKOCYTECMAP
HLA单体型和HLA位点基因型预测模型的建立与验证被引量:1
2024年
目的建立人类白细胞抗原(HLA)单体型和HLA位点基因型预测模型,并验证预测模型的正确性。方法根据HLA单体型遗传及连锁不平衡规律,在获得发明专利和软件著作权的基础上,建立预测模型算法,主要包括:待预测数据预处理、与参考数据比对、预测结果过滤、概率计算和排序、置信度判断及预测结果输出。建立参考数据库包括HLA A-C-B-DRB1-DQB1高分辨单体型数据库、B-C和DRB1-DQB1连锁不平衡数据库,以及G组、NMDP Code等位基因对照表。选取已知A-C-B-DRB1-DQB1单体型和A、B、DRB1、C、DQB1高分辨基因型的数据进行预测,与已知结果比对,验证预测的正确性,分析正确性与预测结果概率分布、置信度的关系。结果建立了HLA单体型和HLA位点基因型预测模型,根据本研究技术路线建立完整的预测模型算法,包括根据HLA-A、B、DRB1、C、DQB1基因型预测A-C-B-DRB1-DQB1单体型;根据HLA-A、B、DRB1高分辨结果预测C、DQB1高分辨结果;根据HLA-A、B、DRB1中、低分辨结果预测A、B、DRB1和C,DQB1高分辨结果。“根据HLA-A、B、DRB1、C、DQB1基因型预测A-C-B-DRB1-DQB1单体型”模型验证结果:在787份验证数据中,740份预测正确,34份预测错误,13份未给出预测结果,预测正确率为94.0%(740/787);847份数据的预测正确率为100%(847/847)。将787、847份数据预测产出的2411、2594组单体型组合按置信度分组,置信度为1时正确率均为100%(48/48、114/114),置信度为2时正确率分别为96.2%(303/315)、97.8%(409/418)。根据HLA-A、B、DRB1高、中、低分辨结果预测A、B、DRB1和C、DQB1高分辨结果模型验证结果,使用以上共计1634份数据的A、B、DRB1高分辨结果预测C、DQB1高分辨结果,经与已知分型结果比对,预测结果中包含正确结果的比例为89.3%(1459/1634),其中,正确结果落在预测概率(GPP)排序前2位的比例为79.2%(1156/1459),落在前10位的比例达到95.0%(1386/1459)。根据预测组�
李杨杜丹张腾腾韩颖宋晔袁晓妮鲍晓晶何军
关键词:人类白细胞抗原单体型
Therapeutic Effectiveness of Leukocyte-and Platelet-rich Fibrin for Diabetic Foot Ulcers:A Retrospective Study
2024年
Objective Diabetic foot ulcer(DFU)is one of the most serious complications of diabetes.Leukocyte-and platelet-rich fibrin(L-PRF)is a second-generation autologous platelet-rich plasma.This study aims to investigate the clinical effects of L-PRF in patients with diabetes in real clinical practice.Methods Patients with DFU who received L-PRF treatment and standard of care(SOC)from 2018 to 2019 in Tongji Hospital were enrolled.The clinical information including patient characteristics,wound evaluation(area,severity,infection,blood supply),SOC of DFU,and images of ulcers was retrospectively extracted and analyzed.L-PRF treatment was performed every 7±2 days until the ulcer exhibited complete epithelialization or an overall percent volume reduction(PVR)greater than 80%.Therapeutic effectiveness,including overall PVR and the overall and weekly healing rates,was evaluated.Results Totally,26 patients with DFU were enrolled,and they had an ulcer duration of 47.0(35.0,72.3)days.The severity and infection of ulcers varied,as indicated by the Site,Ischemia,Neuropathy,Bacterial Infection,and Depth(SINBAD)scores of 2–6,Wagner grades of 1–4,and the Perfusion,Extent,Depth,Infection and Sensation(PEDIS)scores of 2–4.The initial ulcer volume before L-PRF treatment was 4.94(1.50,13.83)cm3,and the final ulcer volume was 0.35(0.03,1.76)cm3.The median number of L-PRF doses was 3(2,5).A total of 11 patients achieved complete epithelialization after the fifth week of treatment,and 19 patients achieved at least an 80%volume reduction after the seventh week.The overall wound-healing rate was 1.47(0.63,3.29)cm3/week,and the healing rate was faster in the first 2 weeks than in the remaining weeks.Concurrent treatment did not change the percentage of complete epithelialization or healing rate.Conclusion Adding L-PRF to SOC significantly improved wound healing in patients with DFU independent of the ankle brachial index,SINBAD score,or Wagner grade,indicating that this method is appropriate for DFU treatment under different clinical con
Fen WANGXiao-ling ZHANGJing ZHANGSong GONGJing TAOHui XIANGXiao-qing FUXu-na BIANXue-feng YUAn-hui XUCheng-la YIShi-ying SHAO
Leukocyte immunoglobulin‐like receptor B4:A keystone in immune modulation and therapeutic target in cancer and beyond
2024年
Leukocyte immunoglobulin‐like receptor B4(LILRB4)significantly impacts immune regulation and the pathogenesis and progression of various cancers.This review discusses LILRB4's structural attributes,expression patterns in immune cells,and molecular mechanisms in modulating immune responses.We describe the influence of LILRB4 on T cells,dendritic cells,NK cells,and macrophages,and its dual role in stimulating and suppressing immune activities.The review discusses the current research on LILRB4's involvement in acute myeloid leukemia,chronic lymphocytic leukemia,and solid tumors,such as colorectal cancer,pancreatic cancer,non‐small cell lung cancer,hepatocellular carcinoma,and extramedullary multiple myeloma.The review also describes LILRB4's role in autoimmune disorders,infectious diseases,and other conditions.We evaluate the recent advancements in targeting LILRB4 using monoclonal antibodies and peptide inhibitors and their therapeutic potential in cancer treatment.Together,these studies underscore the need for further research on LILRB4's interactions in the tumor microenvironment and highlight its importance as a therapeutic target in oncology and for future clinical innovations.
Qi LiuYuyang LiuZhanyu Yang
阴道微生态失衡联合血清HLA-G、HLA-E水平评估HSIL患者CKC术后HPV持续感染价值
2024年
目的:探究阴道微生态失衡联合血清人类白细胞抗原-G(HLA-G)、人类白细胞抗原-E(HLA-E)水平对宫颈高级别上皮内瘤变(HSIL)患者冷刀锥切(CKC)术后人乳头瘤病毒(HPV)持续感染的预测价值。方法:回顾性收集2021年1月-2022年12月本院收治HSIL患者137例临床资料,均行CKC治疗并术后随访1年,观察术后HPV持续感染情况,测定阴道微生态及血清HLA-G、HLA-E,分析阴道微生态及血清HLA-G、HLA-E水平与HPV持续感染关系以及评估价值。结果:137例术后1年内HPV持续感染31例(阳性组),HPV持续感染率为22.6%,未持续感染106例(阴性组),两组阴道pH值,阴道菌群密集度、多样性及滴虫阴道炎发生等均有差异,阳性组阴道微生态失衡率高于阴性组,血清HLA-G(19.84±3.53 ng/ml)、HLA-E(75.39±15.83 pg/ml)水平均高于阴性组(16.93±2.96 ng/ml、68.42±12.51 pg/ml),阳性组中阴道微生态失衡者血清HLA-G、HLA-E水平高于阴道微生态正常者(均P<0.05);Spearman相关分析显示,阴道微生态失衡、血清HLA-G、HLA-E水平与术后HPV持续感染呈正相关(r=0.633、0.529、0.608,均P<0.05);受试者工作特征曲线分析显示,阴道微生态失衡、血清HLA-G、HLA-E水平及联合评估术后HPV持续感染的曲线下面积分别为0.601、0.773、0.805、0.885(P<0.05)。结论:阴道微生态失衡联合血清HLA-G、HLA-E水平有对HSIL患者CKC术后HPV持续感染有一定预测价值。
郑晶晶张凡秦晶晶刘馨雨辛德梅
关键词:冷刀锥切人类白细胞抗原-G人类白细胞抗原-E

相关作者

于虹
作品数:21被引量:34H指数:4
供职机构:天津医科大学总医院
研究主题:滤泡辅助性T细胞 全血细胞减少 非霍奇金淋巴瘤 急性非淋巴细胞白血病 骨髓造血功能衰竭
石炳毅
作品数:785被引量:1,963H指数:17
供职机构:中国人民解放军总医院
研究主题:肾移植 肾移植术后 肝移植 肾移植受者 器官移植
邹志勇
作品数:77被引量:1,013H指数:15
供职机构:北京大学公共卫生学院儿童青少年卫生研究所
研究主题:儿童青少年 超重 超重肥胖 肥胖症 儿童
刘亮
作品数:1被引量:1H指数:1
供职机构:汕头出入境检验检疫局
研究主题:GTPASE 白花丹 VITAMIN LEUKOCYTE ELASTASE
王蕾
作品数:130被引量:1,114H指数:19
供职机构:中国中医科学院广安门医院
研究主题:中医药疗法 消喘膏 冬病夏治消喘膏 冬病夏治 补肾益髓法