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Home at last: Mixed signals guide memory T cells to residency 终于回家了混合信号引导记忆 T 细胞前往居住地
IF 32.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-12 DOI: 10.1016/j.immuni.2024.10.008
Kalle Liimatta, Elina I. Zúñiga
Tissue-resident memory T (TRM) cells adapt to diverse environments, providing local long-term protection. In this issue of Immunity, Obers et al. and Raynor et al. demonstrate how diet, commensals, and host factors determine TRM cell development, maintenance, and function across tissues.
组织驻留记忆 T 细胞(TRM)能适应不同的环境,提供局部长期保护。在本期《免疫》杂志上,Obers 等人和 Raynor 等人展示了饮食、共生动物和宿主因素如何决定 TRM 细胞在不同组织中的发育、维持和功能。
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引用次数: 0
TKI resistance in brain metastasis: A CTLA4 state of mind 脑转移中的 TKI 抗药性:CTLA4 状态
IF 32.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-12 DOI: 10.1016/j.immuni.2024.10.009
Elena Donders, Diether Lambrechts
Resistance to tyrosine kinase inhibitors (TKIs) in lung cancer brain metastasis (LCBM) remains a clinical challenge. Recently in Cancer Cell, Fu et al. reveal how TKIs reshape the immune microenvironment of LCBM and propose CTLA4 blockade as a promising strategy to overcome resistance.
肺癌脑转移(LCBM)患者对酪氨酸激酶抑制剂(TKIs)的耐药性仍然是一项临床挑战。最近,Fu 等人在《癌症细胞》(Cancer Cell)杂志上揭示了酪氨酸激酶抑制剂如何重塑 LCBM 的免疫微环境,并提出 CTLA4 阻断是克服耐药性的一种有前途的策略。
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引用次数: 0
Re: Duration of Androgen Deprivation Therapy with Postoperative Radiotherapy for Prostate Cancer: A Comparison of Long-course Versus Short-course Androgen Deprivation Therapy in the RADICALS-HD Randomised Trial Re:前列腺癌术后放疗与雄激素剥夺疗法的持续时间:RADICALS-HD 随机试验中长疗程与短疗程雄激素剥夺疗法的比较
IF 23.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-12 DOI: 10.1016/j.eururo.2024.10.028
Pirus Ghadjar, Daniel Zips
No Abstract
无摘要
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引用次数: 0
T cells standing at the gates of brain metastasis 站在脑转移大门口的 T 细胞
IF 32.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-12 DOI: 10.1016/j.immuni.2024.10.006
Jan Remsik, Adrienne Boire
Insufficient influx of T cells into the tumor microenvironment, including brain metastasis, dramatically limits efficacy of conventional immunotherapy. In this issue of Immunity, Messmer et al. interrogate spatiotemporal dependencies of melanoma brain metastasis T cell infiltration by intravital microscopy. They find that T cells enter these brain tumors through peritumoral venous vessels and can be stimulated with immunotherapy.
T细胞涌入肿瘤微环境(包括脑转移瘤)不足,极大地限制了传统免疫疗法的疗效。在本期《免疫》杂志上,Messmer 等人通过体内显微镜研究了黑色素瘤脑转移瘤 T 细胞浸润的时空依赖性。他们发现,T细胞通过瘤周静脉血管进入这些脑瘤,并能通过免疫疗法得到刺激。
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引用次数: 0
Navigating the mutation maze: An oncogenic driver’s guide to macrophage reprogramming 穿越突变迷宫:巨噬细胞重编程的致癌驱动指南
IF 32.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-12 DOI: 10.1016/j.immuni.2024.10.007
Ziyi Li, Ankur Sharma
The mechanisms by which oncogenic mutations and anatomical locations work together to influence the immune environment within tumors are not well understood. In this issue of Immunity, Ross et al. show that H3.3K27M diffuse midline gliomas (DMGs) are enriched with disease-associated myeloid cells (DAMs). Myeloid-targeted strategies reprogram DAMs to a homeostatic state, reduce myeloid infiltration into tumors, and prolong survival.
致癌突变和解剖位置共同影响肿瘤内免疫环境的机制尚不十分清楚。在本期《免疫》杂志上,Ross等人的研究表明,H3.3K27M弥漫中线胶质瘤(DMGs)富含疾病相关髓系细胞(DAMs)。以髓系细胞为靶点的策略能将DAMs重新编程为一种平衡状态,减少髓系细胞对肿瘤的浸润,并延长生存期。
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引用次数: 0
Corrigendum to “Impact of Prostate-specific Membrane Antigen Positron Emission Tomography/Computed Tomography on Prostate Cancer Salvage Radiotherapy Management: Results from a Prospective Multicenter Randomized Phase 3 Trial (PSMA-SRT NCT03582774)” [Eur Urol. 86(1) (2024) 52–60] 前列腺特异性膜抗原正电子发射断层扫描/计算机断层扫描对前列腺癌挽救性放疗管理的影响:一项前瞻性多中心随机3期试验(PSMA-SRT NCT03582774)的结果"[欧洲泌尿外科杂志》(Eur Urol.
IF 23.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-09 DOI: 10.1016/j.eururo.2024.10.022
Wesley R. Armstrong, Amar U. Kishan, Kiara M. Booker, Tristan R. Grogan, David Elashoff, Ethan C. Lam, Kevyn J. Clark, Michael L. Steinberg, Wolfgang P. Fendler, Thomas A. Hope, Nicholas G. Nickols, Johannes Czernin, Jeremie Calais
The authors regret about typological errors in the article found by Feng Qi as published in the letter to the editor of July 25, 2024 in European Urology.
作者对 Feng Qi 在 2024 年 7 月 25 日发表在《欧洲泌尿外科杂志》(European Urology)致编辑的信中的文章中发现的类型学错误表示遗憾。
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引用次数: 0
An Unexpected Cause of Fistulizing Small Intestinal Disease 小肠瘘疾病的意外病因
IF 29.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-09 DOI: 10.1053/j.gastro.2024.10.039
Saam Dilmaghani, Rondell P. Graham, Seth Sweetser
No Abstract
无摘要
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引用次数: 0
Phase 3 validation of PAaM for hepatocellular carcinoma risk stratification in cirrhosis PAaM 对肝硬化患者肝细胞癌风险分层的 3 期验证
IF 29.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-08 DOI: 10.1053/j.gastro.2024.10.035
Naoto Fujiwara, Camden Lopez, Tracey L. Marsh, Indu Raman, Cesia A. Marquez, Subhojit Paul, Sumit K. Mishra, Naoto Kubota, Courtney Katz, Hiroaki Kanzaki, Michael Gonzalez, Lisa Quirk, Sneha Deodhar, Pratibha Selvakumar, Prithvi Raj, Neehar D. Parikh, Lewis R. Roberts, Myron E. Schwartz, Mindie H. Nguyen, Alex S. Befeler, Yujin Hoshida

Background and aims

Hepatocellular carcinoma (HCC) risk stratification is an urgent unmet need for cost-effective HCC screening and early detection in patients with cirrhosis to improve poor HCC prognosis.

Methods

Molecular (Prognostic Liver Secretome signature with alpha-fetoprotein) and clinical (aMAP score) variable-based scores were integrated to develop PAaM, which was subsequently validated in two phase 3 biomarker validation studies: the statewide Texas HCC Consortium (THCCC) and nationwide HCC Early Detection Strategy (HEDS) prospective cohorts, following the prospective specimen collection, retrospective blinded evaluation (PRoBE) design. The associations between baseline PAaM and incident HCC were assessed using Fine-Gray regression, with overall death and liver transplantation as competing events.

Results

Of 2,156 cirrhosis patients in THCCC, PAaM identified 404 (19%) high-risk, 903 (42%) intermediate-risk, and 849 (39%) low-risk patients with annual HCC incidence rates of 5.3%, 2.7%, and 0.6%, respectively. Compared to low-risk patients, high- and intermediate-risk groups had sub-distribution hazard ratios (sHRs) for incident HCC of 7.51 (95% confidence interval [CI], 4.42-12.8) and 4.20 (95%CI, 2.52-7.01), respectively. Of 1,328 cirrhosis patients in HEDS, PAaM identified 201 (15%) high-risk, 540 (41%) intermediate-risk, and 587 (44%) low-risk patients, with annual HCC incidence rates of 6.2%, 1.8%, and 0.8%, respectively. High- and intermediate risk groups were associated with sHRs for incident HCC of 6.54 (95%CI, 3.85-11.1) and 1.77 (95%CI, 1.02-3.08), respectively. Subgroup analysis showed robust risk stratification across HCC etiologies, including metabolic dysfunction-associated steatotic liver disease (MASLD) and cured hepatitis C infection.

Conclusion

PAaM enables accurate HCC risk stratification in patients with cirrhosis from contemporary etiologies.
背景和目的肝细胞癌(HCC)风险分层是肝硬化患者进行具有成本效益的HCC筛查和早期检测以改善HCC不良预后的一项尚未满足的迫切需求。方法将基于分子(带有甲胎蛋白的预后肝脏分泌组特征)和临床(aMAP评分)变量的评分整合在一起,开发出了PAaM,随后在两项三期生物标记物验证研究中进行了验证:全州范围的德克萨斯州HCC联盟(THCCC)和全国范围的HCC早期检测策略(HEDS)前瞻性队列,采用的是前瞻性标本采集、回顾性盲法评估(PRoBE)设计。结果 在THCCC的2156例肝硬化患者中,PAaM发现了404例(19%)高危患者、903例(42%)中危患者和849例(39%)低危患者,其HCC年发病率分别为5.3%、2.7%和0.6%。与低危患者相比,高危和中危组的HCC发病亚分布危险比(sHR)分别为7.51(95%置信区间[CI],4.42-12.8)和4.20(95%CI,2.52-7.01)。在 HEDS 的 1328 例肝硬化患者中,PAAM 发现了 201 例(15%)高危患者、540 例(41%)中危患者和 587 例(44%)低危患者,其每年的 HCC 发病率分别为 6.2%、1.8% 和 0.8%。高风险组和中度风险组发生 HCC 的 sHR 分别为 6.54(95%CI,3.85-11.1)和 1.77(95%CI,1.02-3.08)。亚组分析表明,不同病因的HCC风险分层效果都很好,包括代谢功能障碍相关性脂肪性肝病(MASLD)和治愈的丙型肝炎感染。
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引用次数: 0
CREEPING FAT-DERIVED FREE FATTY ACIDS INDUCE HYPERPLASIA OF INTESTINAL MUSCULARIS PROPRIA MUSCLE CELLS – A NOVEL LINK BETWEEN FAT AND INTESTINAL STRICTURE FORMATION IN CROHN’S DISEASE 蠕变脂肪衍生游离脂肪酸诱导肠道固有肌细胞增生--脂肪与羊角风病肠道狭窄形成之间的新联系
IF 29.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-08 DOI: 10.1053/j.gastro.2024.10.034
Weiwei Liu, Ren Mao, Thi Hong Nga Le, Gail West, Venkateshwari Varadharajan, Rakhee Banerjee, Genevieve Doyon, Pranab Mukherjee, Quang Tam Nguyen, Anny Mulya, Julie H. Rennison, Ilyssa O. Gordon, Michael Cruise, Shaomin Hu, Doug Czarnecki, Thomas Plesec, Jyotsna Chandra, Suhanti Banerjee, Jie Wang, William J. Massey, Florian Rieder

Background

In Crohn’s disease (CD) wrapping of mesenteric fat around the bowel wall, so called ‘creeping fat’, is highly associated with strictures. The strongest contributor to luminal narrowing in strictures is a thickening of the human intestinal muscularis propria (MP). We hence investigated creeping fat derived factors and their effect on mechanisms of human intestinal MP smooth muscle cell (HIMC) hyperplasia.

Methods

Free fatty acids (FFA) in creeping fat or non-creeping mesenteric fat organ cultures were measured via lipidomic mass spectrometry. Primary HIMC were exposed to FFA and cell proliferation was assessed. Intracellular FFA metabolism pathways and reactive oxygen species were functionally evaluated. Muscle thickness was investigated in dextran sodium sulfate (DSS) colitis with small molecule inhibition of FFA transport and a novel fat deletion mouse model.

Results

Subserosal creeping fat is associated with a markedly thickened MP. Experimental deletion of mesenteric fat (FAT-ATTAC mouse) reduced MP thickness. Human creeping fat conditioned medium strongly upregulated HIMC proliferation. Creeping fat released higher amounts of five long-chain FFA, including palmitate. Inhibition of HIMC long-chain FFA metabolism or FFA uptake into mitochondria through carnitine palmitoyltransferase (CPT)-1 reduced the palmitate induced HIMC proliferation. Blockade of conversion of palmitate into phospholipids reduced HIMC proliferation. Prophylactic inhibition of CPT-1 in experimental DSS colitis did not ameliorate inflammation, but reduced MP thickness.

Conclusion

Creeping fat released long-chain FFA induce a selective proliferative response by HIMC. These results point to creeping fat as a novel contributor to stricture formation in CD.
背景克罗恩病(CD)肠系膜脂肪包裹肠壁,即所谓的 "爬行脂肪",与肠狭窄有很大关系。导致肠腔狭窄的最主要因素是人体肠道固有肌(MP)的增厚。因此,我们研究了蠕变脂肪衍生因子及其对人体肠道固有肌平滑肌细胞(HIMC)增生机制的影响。方法通过脂质体质谱法测量蠕变脂肪或非蠕变肠系膜脂肪器官培养物中的游离脂肪酸(FFA)。将原代 HIMC 暴露于 FFA 并评估细胞增殖情况。对细胞内 FFA 代谢途径和活性氧进行了功能评估。通过小分子抑制 FFA 转运和新型脂肪缺失小鼠模型,研究了右旋糖酐硫酸钠(DSS)结肠炎的肌肉厚度。实验性肠系膜脂肪缺失(FAT-ATTAC 小鼠)可减少 MP 厚度。人体蠕变脂肪条件培养基强烈上调 HIMC 的增殖。蠕变脂肪释放出更多的五种长链脂肪酸,包括棕榈酸酯。抑制 HIMC 长链脂肪酸代谢或通过肉碱棕榈酰基转移酶(CPT)-1 将脂肪酸摄入线粒体可减少棕榈酸酯诱导的 HIMC 增殖。阻断棕榈酸酯向磷脂的转化可减少 HIMC 的增殖。结论蠕变脂肪释放的长链脂肪酸诱导 HIMC 选择性增殖反应。这些结果表明,蠕变脂肪是 CD 狭窄性肠道形成的一个新因素。
{"title":"CREEPING FAT-DERIVED FREE FATTY ACIDS INDUCE HYPERPLASIA OF INTESTINAL MUSCULARIS PROPRIA MUSCLE CELLS – A NOVEL LINK BETWEEN FAT AND INTESTINAL STRICTURE FORMATION IN CROHN’S DISEASE","authors":"Weiwei Liu, Ren Mao, Thi Hong Nga Le, Gail West, Venkateshwari Varadharajan, Rakhee Banerjee, Genevieve Doyon, Pranab Mukherjee, Quang Tam Nguyen, Anny Mulya, Julie H. Rennison, Ilyssa O. Gordon, Michael Cruise, Shaomin Hu, Doug Czarnecki, Thomas Plesec, Jyotsna Chandra, Suhanti Banerjee, Jie Wang, William J. Massey, Florian Rieder","doi":"10.1053/j.gastro.2024.10.034","DOIUrl":"https://doi.org/10.1053/j.gastro.2024.10.034","url":null,"abstract":"<h3>Background</h3>In Crohn’s disease (CD) wrapping of mesenteric fat around the bowel wall, so called ‘creeping fat’, is highly associated with strictures. The strongest contributor to luminal narrowing in strictures is a thickening of the human intestinal muscularis propria (MP). We hence investigated creeping fat derived factors and their effect on mechanisms of human intestinal MP smooth muscle cell (HIMC) hyperplasia.<h3>Methods</h3>Free fatty acids (FFA) in creeping fat or non-creeping mesenteric fat organ cultures were measured via lipidomic mass spectrometry. Primary HIMC were exposed to FFA and cell proliferation was assessed. Intracellular FFA metabolism pathways and reactive oxygen species were functionally evaluated. Muscle thickness was investigated in dextran sodium sulfate (DSS) colitis with small molecule inhibition of FFA transport and a novel fat deletion mouse model.<h3>Results</h3>Subserosal creeping fat is associated with a markedly thickened MP. Experimental deletion of mesenteric fat (FAT-ATTAC mouse) reduced MP thickness. Human creeping fat conditioned medium strongly upregulated HIMC proliferation. Creeping fat released higher amounts of five long-chain FFA, including palmitate. Inhibition of HIMC long-chain FFA metabolism or FFA uptake into mitochondria through carnitine palmitoyltransferase (CPT)-1 reduced the palmitate induced HIMC proliferation. Blockade of conversion of palmitate into phospholipids reduced HIMC proliferation. Prophylactic inhibition of CPT-1 in experimental DSS colitis did not ameliorate inflammation, but reduced MP thickness.<h3>Conclusion</h3>Creeping fat released long-chain FFA induce a selective proliferative response by HIMC. These results point to creeping fat as a novel contributor to stricture formation in CD.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":"5 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress Toward Global Dracunculiasis (Guinea Worm Disease) Eradication, January 2023-June 2024. 2023 年 1 月至 2024 年 6 月全球根除麦地那龙线虫病(麦地那龙线虫病)的进展情况。
IF 25.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2024-11-07 DOI: 10.15585/mmwr.mm7344a1
Donald R Hopkins, Adam J Weiss, Sarah Yerian, Yujing Zhao, Sarah G H Sapp, Vitaliano A Cama

The effort to eradicate Dracunculus medinensis, the etiologic agent of dracunculiasis, or Guinea worm disease, began at CDC in 1980. In 1986, with an estimated 3.5 million global cases in 20 African and Asian countries, the World Health Assembly called for dracunculiasis elimination. The Guinea Worm Eradication Program (GWEP) was established to help countries with endemic dracunculiasis reach this goal. GWEP is led by The Carter Center and supported by partners, including the countries with endemic disease, CDC, UNICEF, and the World Health Organization. Since 2012, infections in dogs, cats, and baboons have posed a new challenge for GWEP, as have ongoing civil unrest and insecurity in some areas. As of June 2024, dracunculiasis remained endemic in five countries (Angola, Chad, Ethiopia, Mali, and South Sudan). Fourteen human cases and 886 animal infections occurred, including 407 dogs in Chad and 248 dogs in Cameroon, reported in 2023, and three human cases and 297 animal infections reported during January-June 2024. Animal infections, primarily in dogs in Cameroon and Chad, and impeded access due to civil unrest and insecurity in Mali, threaten the near-term possibility of global eradication. Nevertheless, countries appear poised to reach zero cases.

疾病预防控制中心于 1980 年开始努力根除麦地那龙线虫病或几内亚蠕虫病的病原体麦地那龙线虫。1986 年,估计全球有 350 万例麦地那龙线虫病病例,分布在 20 个非洲和亚洲国家,世界卫生大会呼吁消灭麦地那龙线虫病。为帮助麦地那龙线虫病流行的国家实现这一目标,成立了麦地那龙线虫病根除计划(GWEP)。根除麦地那龙线虫病计划由卡特中心领导,并得到了包括地方病流行国家、疾病预防控制中心、联合国儿童基金会和世界卫生组织在内的合作伙伴的支持。自 2012 年以来,狗、猫和狒狒的感染给 GWEP 带来了新的挑战,一些地区持续的内乱和不安全局势也给 GWEP 带来了新的挑战。截至 2024 年 6 月,麦地那龙线虫病仍在五个国家(安哥拉、乍得、埃塞俄比亚、马里和南苏丹)流行。2023 年报告了 14 例人类病例和 886 例动物感染病例,包括乍得的 407 条狗和喀麦隆的 248 条狗,2024 年 1-6 月报告了 3 例人类病例和 297 例动物感染病例。动物感染(主要是喀麦隆和乍得的狗)以及马里的内乱和不安全导致的出入受阻威胁着近期全球根除的可能性。不过,一些国家似乎有望实现零病例。
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引用次数: 0
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