• 文章类型: Journal Article
    背景:严重疾病对话可以帮助患者避免不必要的治疗。我们先前为患有急性髓细胞性白血病和骨髓增生异常综合征的老年人试行了远程健康严重疾病护理计划(SICP)。
    目的:在本研究中,我们旨在从临床医生的角度了解远程医疗SICP的经验。
    方法:我们研究了10名临床医生,他们向20名患有急性髓细胞性白血病或骨髓增生异常综合征的老年人提供了远程医疗SICP。定量结果包括置信度和可接受性。使用22项调查(范围1-7;得分越高越好)来衡量信心。使用11项调查(5点Likert量表)测量可接受性。由于试点性质和样本量小,在α=.10(2尾)进行了假设检验。临床医生在研究结束时参加了音频记录的定性访谈,以讨论他们的经验。
    结果:共有8名临床医生完成了置信度测量,7名临床医生完成了可接受性测量。我们发现总体置信度有统计学上的显着增加(平均增加0.5,SD0.6;P=0.03)。信心增加最大的是帮助家庭和解和告别(平均1.4,标准差1.5;P=.04)。大多数临床医生同意该格式简单(6/7,86%)且易于使用(6/7,86%)。临床医生认为远程医疗SICP可有效了解患者对临终关怀的价值(7/7,100%)。总共出现了三个定性主题:(1)远程医疗SICP加深了关系并重新建立了信任;(2)每次远程医疗SICP访问都以积极的方式感到独特和个性化;(3)不间断,不匆忙的时间优化了访问体验。
    结论:远程医疗SICP增加了进行严重疾病对话的信心,同时加深了患者与临床医生的关系。
    背景:ClinicalTrials.govNCT04745676;https://www.临床试验.gov/研究/NCT04745676。
    BACKGROUND: Serious illness conversations may help patients avoid unwanted treatments. We previously piloted the telehealth Serious Illness Care Program (SICP) for older adults with acute myeloid leukemia and myelodysplastic syndrome.
    OBJECTIVE: In this study, we aimed to understand the experience of the telehealth SICP from the clinician\'s perspective.
    METHODS: We studied 10 clinicians who delivered the telehealth SICP to 20 older adults with acute myeloid leukemia or myelodysplastic syndrome. Quantitative outcomes included confidence and acceptability. Confidence was measured using a 22-item survey (range 1-7; a higher score is better). Acceptability was measured using an 11-item survey (5-point Likert scale). Hypothesis testing was performed at α=.10 (2-tailed) due to the pilot nature and small sample size. Clinicians participated in audio-recorded qualitative interviews at the end of the study to discuss their experience.
    RESULTS: A total of 8 clinicians completed the confidence measure and 7 clinicians completed the acceptability measure. We found a statistically significant increase in overall confidence (mean increase of 0.5, SD 0.6; P=.03). The largest increase in confidence was in helping families with reconciliation and goodbye (mean 1.4, SD 1.5; P=.04). The majority of clinicians agreed that the format was simple (6/7, 86%) and easy to use (6/7, 86%). Clinicians felt that the telehealth SICP was effective in understanding their patients\' values about end-of-life care (7/7, 100%). A total of three qualitative themes emerged: (1) the telehealth SICP deepened relationships and renewed trust; (2) each telehealth SICP visit felt unique and personal in a positive way; and (3) uninterrupted, unrushed time optimized the visit experience.
    CONCLUSIONS: The telehealth SICP increased confidence in having serious illness conversations while deepening patient-clinician relationships.
    BACKGROUND: ClinicalTrials.gov NCT04745676; https://www.clinicaltrials.gov/study/NCT04745676.
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  • 文章类型: Case Reports
    暂无摘要。
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  • 文章类型: Journal Article
    蛋白质数据库(PDB)包括精心策划的生物大分子及其各种复合物的实验衍生结构数据。这些信息对于涉及大规模数据挖掘和/或对化学重要的单个结构的详细评估的众多项目至关重要。生物学,最重要的是,医学,它为基于结构的药物发现提供了基础。然而,尽管有广泛的验证机制,这几乎是不可避免的,在215000个条目中,偶尔会有次优或不正确的结构模型。因此,将仔细的验证程序应用于PDB中具有直接医学意义的那些部分至关重要。这里,对L-天冬酰胺酶的晶体学模型进行了这样的分析,包括用于治疗某些类型白血病的批准药物的酶。重点是原子坐标对立体化学规则的遵守及其与实验电子密度图的一致性。而目前L-天冬酰胺酶的临床应用仅限于两种细菌蛋白及其化学修饰,近年来,随着三种完全不同的结构类别的发现和大量报道,此类酶的研究领域已大大扩展。并不总是很可靠,不同来源的L-天冬酰胺酶的抗癌特性。
    The Protein Data Bank (PDB) includes a carefully curated treasury of experimentally derived structural data on biological macromolecules and their various complexes. Such information is fundamental for a multitude of projects that involve large-scale data mining and/or detailed evaluation of individual structures of importance to chemistry, biology and, most of all, to medicine, where it provides the foundation for structure-based drug discovery. However, despite extensive validation mechanisms, it is almost inevitable that among the ∼215 000 entries there will occasionally be suboptimal or incorrect structure models. It is thus vital to apply careful verification procedures to those segments of the PDB that are of direct medicinal interest. Here, such an analysis was carried out for crystallographic models of L-asparaginases, enzymes that include approved drugs for the treatment of certain types of leukemia. The focus was on the adherence of the atomic coordinates to the rules of stereochemistry and their agreement with the experimental electron-density maps. Whereas the current clinical application of L-asparaginases is limited to two bacterial proteins and their chemical modifications, the field of investigations of such enzymes has expanded tremendously in recent years with the discovery of three entirely different structural classes and with numerous reports, not always quite reliable, of the anticancer properties of L-asparaginases of different origins.
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  • 文章类型: Journal Article
    结论:研究论文探讨了锡金地区孕妇肠道寄生虫感染的负担和相关因素,印度,被归类为被忽视的热带病,影响全球15亿人,热带地区的比率较高。这些感染会带来重大的健康风险,导致贫血,孕产妇-围产期健康状况不佳,和延续世代营养不良和反复感染。一项针对锡金100名孕妇的横断面研究旨在确定肠道寄生虫病的负担和相关的社会人口统计学因素。与类似的研究相比,它报告的患病率较低,以贾第鞭毛虫为主要寄生虫。该研究发现肠道寄生虫病和贫血之间存在显著联系。总之,本文建议对血红蛋白水平低的孕妇进行常规筛查和驱虫,强调怀孕期间对肠道寄生虫病的健康教育和认识,尤其是在资源有限的环境中。遵守印度的孕期驱虫国家指南至关重要。
    CONCLUSIONS: The research paper explores the burden and associated factors of intestinal parasitic infections among pregnant women in Sikkim, India, categorized as neglected tropical diseases affecting 1.5 billion globally, with higher rates in tropical regions. These infections pose significant health risks, causing anemia, poor maternal-perinatal health, and perpetuating generational undernutrition and recurrent infections. A cross-sectional study of 100 pregnant women in Sikkim aimed to determine the burden of intestinal parasitosis and associated sociodemographic factors. It reported a lower prevalence compared to similar studies, with Giardia Lamblia as the dominant parasite. The study found a significant link between intestinal parasitosis and anemia. In conclusion, the paper recommends routine screening and deworming for pregnant women with low hemoglobin levels, emphasizing health education and awareness about intestinal parasitosis during pregnancy, especially in resource-limited settings. Adherence to India\'s National Guidelines for Deworming during pregnancy is crucial.
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  • 文章类型: Journal Article
    BCL2相互作用蛋白3样(BNIP3L)蛋白参与多发性骨髓瘤(MM)的发展和进展。本研究旨在探讨BNIP3L单核苷酸多态性(SNP)与MM之间的联系。
    SNaPshot用于检查入组受试者中BNIP3L基因的六个SNP基因座。探讨这些位点与MM易感性及预后的关系。生存分析用于评估不同因素对患者生存的影响。
    rs2874670AA基因型和A等位基因与MM风险增加相关(P<0.05)。CCACAC单倍型在MM中具有较高的频率,CCGCAC在正常患者中出现频率较高(均P<0.05)。R-ISSⅠ期和Ⅱ期患者的生存率高于Ⅲ期患者(P<0.05)。患者,接受化疗后进行自体干细胞移植,生存时间长于单纯化疗患者(P<0.05)。低水平的LDH和β2-MG与较好的生存率相关(P<0.05)。Cox回归确定LDH水平,β2-MG水平,R-ISS分期是MM死亡的危险因素。Mann-WhitneyU检验发现不同BNIP3Lrs2874670基因型的MM患者经BD化疗后生存时间差异有统计学意义(P<0.05)。
    据我们所知,这是中国首次发现BNIP3Lrs2874670可增加MM易感性的研究。不同BNIP3Lrs2874670基因型可能影响接受BD化疗的MM患者的预后。
    UNASSIGNED: The BCL2 interacting protein 3-like (BNIP3L) protein is involved in multiple myeloma (MM) development and progression. This study aims to explore the connection between BNIP3L single-nucleotide polymorphisms (SNPs) and MM.
    UNASSIGNED: SNaPshot was used to examine six SNP loci of the BNIP3L gene in enrolled subjects. The relationship between these loci and MM susceptibility and prognosis was explored. Survival analysis was used to evaluate the impact of different factors on patient survival.
    UNASSIGNED: The rs2874670 AA genotype and A allele were associated with increased MM risk (P < 0.05). The CCACAC haplotype had a higher frequency in MM, while CCGCAC had a higher frequency in normal patients (all P < 0.05). Patients with R-ISS stage I and II had higher survival rates than those with stage III (P < 0.05). Patients, who received chemotherapy followed by autologous stem cell transplantation, had longer survival time than those who only received chemotherapy (P < 0.05). Low levels of LDH and β2-MG were associated with better survival rates (P < 0.05). Cox regression identified that LDH levels, β2-MG levels, and R-ISS staging were the risk factors for the death of MM. Mann-Whitney U test found a significant difference in survival time between MM patients with different BNIP3L rs2874670 genotypes after BD chemotherapy (P < 0.05).
    UNASSIGNED: To our knowledge, this is the first study to find that BNIP3L rs2874670 could increase MM susceptibility in China. Different BNIP3L rs2874670 genotypes may affect the prognosis of MM patients receiving BD chemotherapy.
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  • 文章类型: Journal Article
    SUMO特异性蛋白酶1(SENP1)与急性髓性白血病(AML)之间的遗传关联已得到验证。然而,SENP1影响AML增殖的机制,凋亡,自噬仍然未知。检测AML患者SENP1和聚嘧啶束结合蛋白1(PTBP1)水平,AML细胞系,和异种移植组织。SENP1对AML增殖的影响,凋亡,和BECN1依赖性自噬通过体外和体内功能缺失或获得实验进行评估。使用免疫沉淀(IP)的SUMO化分析,RNA下拉,RIP,和RNA稳定性分析用于探索SENP1在AML发生发展中的分子机制。AML样品中SENP1水平升高。沉默SENP1阻碍了AML的发展,如AML细胞中SENP1耗竭导致的增殖抑制和G1期停滞和凋亡的促进所证明的。此外,沉默SENP1可抑制AML细胞中BECN1-脱位自噬。此外,BECN1或PTBP1的过表达部分中和了SENP1敲低对AML细胞行为的影响。机械上,SENP1介导PTBP1去SUMO化,然后直接与BECN1mRNA相互作用并增强其稳定性。体内实验进一步证实了SENP1抑制对AML发展的抑制作用。总的来说,SENP1/PTBP1/BECN1信号轴已被确定为增强AML治疗的重要治疗靶标.
    Genetic association between SUMO-specific protease 1 (SENP1) and acute myeloid leukemia (AML) has been validated. However, the mechanism by which SENP1 affects AML proliferation, apoptosis, and autophagy remains unknown. The levels of SENP1 and polypyrimidine tract-binding protein 1 (PTBP1) were measured in AML patients, AML cell lines, and xenograft tissues. The effects of SENP1 on AML proliferation, apoptosis, and BECN1-dependent autophagy were assessed through in vitro and in vivo loss- or gain-of-function experiments. SUMOylation analysis using immunoprecipitation (IP), RNA pull-down, RIP, and RNA stability assays were used to explore the molecular mechanism of SENP1 in AML development. The SENP1 level was elevated in AML samples. Silencing SENP1 impeded the development of AML, as evidenced by the inhibition of proliferation and promotion of G1 phase arrest and apoptosis resulting from SENP1 depletion in AML cells. Moreover, silencing of SENP1 restrained BECN1-depentent autophagy in AML cells. In addition, the overexpression of BECN1 or PTBP1 partially neutralized the effect of SENP1 knockdown on AML cell behavior. Mechanistically, SENP1 mediated PTBP1 deSUMOylation, which then directly interacted with BECN1 mRNA and enhanced its stability. In vivo experiments further confirmed the repressive effects of SENP1 suppression on AML development. Collectively, the SENP1/PTBP1/BECN1 signaling axis has been identified as a significant therapeutic target for enhancing AML treatment.
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  • 文章类型: Journal Article
    急性髓细胞性白血病(AML)是一种常见的灾难性血液系统肿瘤,死亡率高。常规疗法,包括化疗,造血干细胞移植(HSCT),免疫疗法,和目标特工,由于药物毒性,AML患者的预后不理想,脱靶效应,耐药性,药物副作用,AML复发和难治性。当前治疗的这些内在局限性促进了纳米医学的发展和应用,以实现更有效,更安全的白血病治疗。在这次审查中,用于AML治疗的纳米颗粒的分类,包括脂质体,聚合物囊泡,胶束,树枝状聚合物,和无机纳米粒子,已审查。此外,在纳米医学中增强治疗靶向性的各种策略,包括使用共轭配体,仿生纳米技术,和骨髓靶向,这表明了逆转耐药性的潜力,正在讨论。还涉及纳米医学在辅助免疫治疗中的应用。最后,讨论了纳米医学从临床前阶段过渡到临床阶段的优势和可能面临的挑战。
    Acute myeloid leukemia (AML) is a common and catastrophic hematological neoplasm with high mortality rates. Conventional therapies, including chemotherapy, hematopoietic stem cell transplantation (HSCT), immune therapy, and targeted agents, have unsatisfactory outcomes for AML patients due to drug toxicity, off-target effects, drug resistance, drug side effects, and AML relapse and refractoriness. These intrinsic limitations of current treatments have promoted the development and application of nanomedicine for more effective and safer leukemia therapy. In this review, the classification of nanoparticles applied in AML therapy, including liposomes, polymersomes, micelles, dendrimers, and inorganic nanoparticles, is reviewed. In addition, various strategies for enhancing therapeutic targetability in nanomedicine, including the use of conjugating ligands, biomimetic-nanotechnology, and bone marrow targeting, which indicates the potential to reverse drug resistance, are discussed. The application of nanomedicine for assisting immunotherapy is also involved. Finally, the advantages and possible challenges of nanomedicine for the transition from the preclinical phase to the clinical phase are discussed.
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  • 文章类型: Journal Article
    由于营养不足和贫血在印度持续普遍存在,社会经济弱势群体继续首当其冲。奥里萨邦是印度数量最多的特别脆弱的部落群体(PVTG)的所在地。该研究旨在提供有关奥里萨邦所有PVTG的营养不良和贫血状况的全面报告。
    从2018年8月至2019年2月,对分布在奥里萨邦12个地区的13个PVTG(N=1461,683名男性和779名女性)进行了一项基于社区的横断面研究。
    在五岁以下儿童中,体重不足的患病率为75.26%,发育迟缓占55.42%,在女孩中,消瘦占60.00%,所有形式的营养不良都较高。在5至19岁年龄段的儿童和青少年中,瘦身的患病率为46.7%。在20岁以上的个体中,男性体重不足的患病率为37.7%,女性为44.3%,女性为36.5%,男性为35.8%。育龄妇女贫血患病率较高。
    研究表明,PVTG中的营养不良和贫血仍然很高,尤其是五岁以下儿童和育龄妇女。随着该国朝着到2030年实现可持续发展目标(SDG)的方向前进,需要设计和实施国家和州的卫生政策。特别关注这些弱势群体。
    UNASSIGNED: As undernutrition and anemia persist to be prevalent in India, the socioeconomically disadvantaged groups continue to take the greater brunt. Odisha is home to the largest number of particularly vulnerable tribal groups (PVTGs) in India. The study aimed to provide a comprehensive report on the undernutrition and anemia status of all the PVTGs of Odisha.
    UNASSIGNED: A community-based cross-sectional study was conducted among (N = 1461, 683 males and 779 females) 13 PVTGs spread across 12 districts of Odisha from August 2018 to February 2019.
    UNASSIGNED: Among the under-five children, the prevalence of underweight was observed in 75.26%, stunting in 55.42%, and wasting in 60.00% and all forms of undernutrition were higher among girls. Among children and adolescents belonging to the age group of 5 to 19 years, the prevalence of thinness was 46.7%. In individuals above the age of 20, the prevalence of underweight among males was 37.7% and females was 44.3% and severe anemia was present in 36.5% of females and 35.8% of males. Women in the reproductive age have a higher prevalence of anemia.
    UNASSIGNED: The study shows that undernutrition and anemia remain high in the PVTGs, especially among the under-five children and women in the reproductive age. As the country heads toward fulfilling Sustainable Development Goals (SDG) by 2030, national and state health policies need to be designed and implemented, giving special focus to these vulnerable groups.
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  • 文章类型: Journal Article
    多发性骨髓瘤(MM),起源于骨髓的浆细胞的恶性疾病,受遗传因素的影响很大。虽然血浆脂质体已经与MM有关,他们潜在的因果关系的性质还有待阐明。本研究旨在使用孟德尔随机化(MR)分析来探索这种关系。
    在全基因组关联研究(GWAS)汇集数据库中,从7,174名芬兰个体的血浆脂质组学数据中鉴定了脂质体相关的遗传工具变量(IVs)。MM汇集的数据集来自GWAS荟萃分析,包括150,797名个体,包括598名MM患者和218,194名对照。这些静脉注射进行了MR分析,坚持严格的相关性标准,独立性,以及排除混杂因素。逆方差加权(IVW)方法,MR-Egger方法,加权中位数(WM)法,和简单中位数用于MR分析评估,在Cochran的Q测试旁边,MR-Egger截获,MR-Pleiotropy残差和离群值(MR-RESSO)方法,和用于评估异质性的留一法分析,多重性,和工具偏见。
    该研究确定了88个有意义的,独立的单核苷酸多态性(SNP)作为MR分析的IVs,每个都有一个大于10的F统计值,表明对弱仪器偏差的鲁棒性。IVW分析显示六种血浆脂质体成分与MM风险之间存在关联(p<0.05)。磷脂酰肌醇(16:0_18:1)血清水平(比值比[OR]=1.769,95%置信区间[CI]:1.132-2.763,p=0.012)和三酰甘油(56:4)水平(p=0.026,OR=1.417,95%CI:1.042-1.926)与多发性骨髓瘤的发展风险呈正相关。磷脂酰乙醇胺(18:0_20:4)(p=0.004,95%CI:0.621-0.916,OR=0.754),磷脂酰胆碱(18:2_20:4)(p=0.004,OR=0.680,95%CI:0.519-0.889),甾醇酯(27:1/18:3)水平(p=0.013,OR=0.677,95%CI:0.498-0.922),和磷脂酰胆碱(O-18:2_20:4)水平(OR=0.710,95%CI:0.517-0.913,p=0.033)与发生多发性骨髓瘤的风险呈负相关。Cochran的Q检验没有检测到统计方法的异质性,MR-RESSO检验或MR-Egger截距也未检测到水平多效性;留一法分析证实了个体SNP不存在偏倚.
    我们的发现表明血浆脂质体成分与MM风险之间存在复杂的关系。血清三酰甘油和磷脂酰肌醇水平升高与MM风险呈正相关。而某些磷脂和甾醇酯提供保护作用。这项研究为脂质体在多发性骨髓瘤病理中的临床相关性提供了有价值的见解。
    UNASSIGNED: Multiple myeloma (MM), a malignant disease of plasma cells originating in the bone marrow, is influenced significantly by genetic factors. Although plasma liposomes have been linked to MM, the nature of their potential causal relationship remains to be elucidated. This study aims to explore this relationship using Mendelian randomization (MR) analysis.
    UNASSIGNED: Liposome-associated genetic instrumental variables (IVs) were identified from plasma lipidomics data of 7,174 Finnish individuals within a Genome-Wide Association Study (GWAS) pooled database. A MM pooled dataset was sourced from a GWAS meta-analysis encompassing 150,797 individuals, including 598 MM patients and 218,194 controls. These IVs underwent MR analysis, adhering to strict criteria for correlation, independence, and the exclusion of confounders. The inverse variance weighted (IVW) method, MR-Egger method, weighted median (WM) method, and simple median were utilized for MR analysis assessment, alongside Cochran\'s Q test, MR-Egger intercept, MR-Pleiotropy Residual Sum and Outlier (MR-RESSO) method, and leave-one-out analysis for evaluating heterogeneity, multiplicity, and instrumental bias.
    UNASSIGNED: The study identified 88 significant, independent single nucleotide polymorphisms (SNPs) as IVs for MR analysis, each with an F-statistic value above 10, indicating robustness against weak instrument bias. IVW analysis revealed associations between six plasma liposome components and MM risk (p < 0.05). Phosphatidylinositol (16:0_18:1) serum levels (odds ratio [OR] = 1.769, 95% confidence interval [CI]: 1.132-2.763, p = 0.012) and triacylglycerol (56:4) levels (p = 0.026, OR = 1.417, 95% CI: 1.042-1.926) were positively correlated with the risk of multiple myeloma development. Phosphatidylethanolamine (18:0_20:4) (p = 0.004, 95% CI: 0.621-0.916, OR = 0.754), phosphatidylcholine (18:2_20:4) (p = 0.004, OR = 0.680, 95% CI: 0.519-0.889), sterol ester (27:1/18:3) levels (p = 0.013, OR = 0.677, 95% CI: 0.498-0.922), and phosphatidylcholine (O-18:2_20:4) levels (OR = 0.710, 95% CI: 0.517-0.913, p = 0.033) were negatively associated with the risk of developing multiple myeloma. The Cochran\'s Q test did not detect statistical method heterogeneity, nor did the MR-RESSO test or the MR-Egger intercept detect horizontal pleiotropy; leave-one-out analyses confirmed the absence of bias from individual SNPs.
    UNASSIGNED: Our findings suggest a complex relationship between plasma liposome components and MM risk. Elevated serum levels of triacylglycerol and phosphatidylinositol are positively associated with MM risk, while certain phospholipids and sterol esters offer a protective effect. This study provides valuable insights into the clinical relevance of liposomes in the pathology of multiple myeloma.
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  • 文章类型: Journal Article
    双特异性抗体(BsAb)可以同时靶向不同抗原靶标的两个表位,为抗体药物设计的多样性带来了可能性,并且是治疗癌症和其他疾病的有希望的工具。T细胞接合bsAb是双特异性抗体的重要应用,可以通过同时靶向肿瘤相关抗原(TAA)和CD3来促进T细胞介导的肿瘤细胞杀伤。
    这项研究包括抗体纯化,用于抗原结合的Elisa测定,细胞毒性试验,体外流式细胞术检测T细胞活化和体内异种肿瘤模型。
    我们提出了一种名为PHE-Ig技术的新型bsAb平台,通过替换不同单克隆抗体的CH1/CL区促进同源重链(HC)-轻链(LC)配对。我们还验证了PHE-Ig技术可以有效地用作平台来合成不同的所需bsAb用于T细胞免疫疗法。尤其是,BCMA×CD3PHE-IgbsAb在体外和体内表现出强大的抗多发性骨髓瘤(MM)活性。
    此外,PHE1结构域进一步缩短D14G和R41S突变,名叫PHE-S,基于PHE-S的BCMA×CD3bsAb在体内和体外也显示出抗BCMA肿瘤作用,为不同bsAb的开发和优化带来更多可能性。总而言之,用于bsAb构建的基于PHE1的IgG样抗体平台为增强的T细胞免疫疗法提供了新策略。
    UNASSIGNED: Bispecific antibodies (BsAbs) can simultaneously target two epitopes of different antigenic targets, bringing possibilities for diversity in antibody drug design and are promising tools for the treatment of cancers and other diseases. T-cell engaging bsAb is an important application of the bispecific antibody, which could promote T cell-mediated tumor cell killing by targeting tumor-associated antigen (TAA) and CD3 at the same time.
    UNASSIGNED: This study comprised antibodies purification, Elisa assay for antigen binding, cytotoxicity assays, T cell activation by flow cytometry in vitro and xenogenic tumor model in vivo.
    UNASSIGNED: We present a novel bsAb platform named PHE-Ig technique to promote cognate heavy chain (HC)-light chain (LC) pairing by replacing the CH1/CL regions of different monoclonal antibodies (mAbs) with the natural A and B chains of PHE1 fragment of Integrin β2 based on the knob-in-hole (KIH) technology. We had also verified that PHE-Ig technology can be effectively used as a platform to synthesize different desired bsAbs for T-cell immunotherapy. Especially, BCMA×CD3 PHE-Ig bsAbs exhibited robust anti-multiple myeloma (MM) activity in vitro and in vivo.
    UNASSIGNED: Moreover, PHE1 domain was further shortened with D14G and R41S mutations, named PHE-S, and the PHE-S-based BCMA×CD3 bsAbs also showed anti BCMA+ tumor effect in vitro and in vivo, bringing more possibilities for the development and optimization of different bsAbs. To sum up, PHE1-based IgG-like antibody platform for bsAb construction provides a novel strategy for enhanced T-cell immunotherapy.
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