首页 > 最新文献

American Journal of Hematology最新文献

英文 中文
Late Onset Telomere Biology Disorder Presenting With Pancytopenia, Immune Dysregulation, Interstitial Lung Disease and Alopecia. 迟发性端粒生物学紊乱,表现为全血细胞减少、免疫失调、间质性肺疾病和脱发。
IF 9.9 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-24 DOI: 10.1002/ajh.70234
Bo A Wan, Hamish Nicolson, Heather A Leitch, Ryan J Stubbins, Luke Y C Chen, Timothy Murray, Amy Trottier, Anthony Gador
{"title":"Late Onset Telomere Biology Disorder Presenting With Pancytopenia, Immune Dysregulation, Interstitial Lung Disease and Alopecia.","authors":"Bo A Wan, Hamish Nicolson, Heather A Leitch, Ryan J Stubbins, Luke Y C Chen, Timothy Murray, Amy Trottier, Anthony Gador","doi":"10.1002/ajh.70234","DOIUrl":"https://doi.org/10.1002/ajh.70234","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":" ","pages":""},"PeriodicalIF":9.9,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147281877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long Term Outcomes in Patients With Non-Infectious Mixed Cryoglobulinemic Vasculitis. 非感染性混合冷球蛋白性血管炎患者的长期预后
IF 9.9 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-24 DOI: 10.1002/ajh.70217
Nicolas Dib, David Saadoun, Alexandre Le Joncour, Chloë Dumas de la Roque, Elisabeth Pasquier, Emmanuel Esteve, Isabelle Marie, Gabriel Choukroun, Thomas Quemeneur, Laure Swiader, Catherine Michel, Amandine Perier, Franck Bridoux, Benjamin Thoreau, Matthieu Groh, Benjamin Terrier, Thierry Zenone, David Launay, Patrice Cacoub, Adrien Mirouse
{"title":"Long Term Outcomes in Patients With Non-Infectious Mixed Cryoglobulinemic Vasculitis.","authors":"Nicolas Dib, David Saadoun, Alexandre Le Joncour, Chloë Dumas de la Roque, Elisabeth Pasquier, Emmanuel Esteve, Isabelle Marie, Gabriel Choukroun, Thomas Quemeneur, Laure Swiader, Catherine Michel, Amandine Perier, Franck Bridoux, Benjamin Thoreau, Matthieu Groh, Benjamin Terrier, Thierry Zenone, David Launay, Patrice Cacoub, Adrien Mirouse","doi":"10.1002/ajh.70217","DOIUrl":"https://doi.org/10.1002/ajh.70217","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":" ","pages":""},"PeriodicalIF":9.9,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147275822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PTCy or ATG for Matched Transplantation in Myelofibrosis PTCy或ATG在骨髓纤维化匹配移植中的应用
IF 12.8 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-23 DOI: 10.1002/ajh.70244
Patrizia Chiusolo, Andrea Bacigalupo, Rachel Salit, Thomas Schroeder, Maria Chiara Finazzi, Carmelo Gurnari, Simona Pagliuca, Judith Metzdorf, Christina Rautenberg, Marie Robin, Marie-Thérèse Rubio, Jaroslaw Maciejewski, Uday Popat, Alessandro Rambaldi, Hans Christian Reinhardt, Bart Scott, Nicolaus Kröger, Nico Gagelmann
<p>Allogeneic hematopoietic stem cell transplantation remains the only curative therapy, yet outcomes are tempered by graft failure, relapse, infectious complications, and graft-versus-host disease (GVHD) [<span>1</span>]. Two approaches for GVHD prophylaxis dominate: anti-thymocyte or anti-T-lymphocyte globulin (ATG) and post-transplant cyclophosphamide (PTCy). ATG provides broad in vivo T-cell depletion and reduces GVHD risk and has been shown to improve outcomes in all donor settings [<span>2</span>]. PTCy, primarily used in the haploidentical setting, acts post-transplant to selectively eliminate proliferating alloreactive T cells while preserving regulatory and memory populations, potentially mitigating GVHD while supporting immune reconstitution [<span>3</span>]. Both strategies have shown efficacy [<span>2, 4-7</span>], yet their relative impact in myelofibrosis in the matched donor setting—a disease with unique transplant dynamics—remains unclear. This study aims to evaluate outcomes of HLA-matched transplantation in MF using either ATG or PTCy.</p><p>This was a retrospective, non-randomized comparison in patients undergoing transplantation for myelofibrosis between 2010 and 2024. Additional GVHD prophylaxis in both arms consisted of cyclosporine A together with mycophenolate mofetil or methotrexate, depending on center standards. Patients with accelerated-phase or blast-phase MF were excluded [<span>8</span>]. Dose for PTCy was 50 mg/kg/day on 2 days after transplant. Patients receiving ATG included two different brands: Thymoglobulin (Sanofi, France) 3.5 mg/kg/day on 2 days before transplantation or Grafalon (Neovii, Germany) 30 mg/kg/day for matched siblings and 60 mg/kg/day for matched unrelated donors on 3 days before transplantation.</p><p>To account for selection bias and potential confounding factors between groups in outcome comparisons, we employed a weighted propensity score analysis to balance baseline characteristics between patients who received ATG versus PTCY. The propensity score model was generated using the inverse probability of treatment weighting (IPTW) approach, where each patient was weighted by the inverse probability of being in the ATG or PTCY group. Weighted Cox proportional hazards models were used to assess survival outcomes, hazard ratios (wHRs), and Fine-Gray regression was used for endpoints with competing risks.</p><p>A total of 539 patients were included, with 427 receiving ATG and 112 PTCy (Supplemental Table 1), and the median age was comparable between groups (58 vs. 60 years, <i>p</i> = 0.21). Donor type showed a trend toward more matched related donors in the PTCy group compared with ATG (38% vs. 28%, <i>p</i> = 0.06). Conditioning intensity differed significantly between groups: reduced-intensity regimens were predominant in the ATG group (79%), whereas nearly half of patients in the PTCy group received higher-intensity conditioning (47%; <i>p</i> < 0.001). Median follow-up was 4.8 years for
同种异体造血干细胞移植仍然是唯一的治愈性治疗方法,但移植失败、复发、感染性并发症和移植物抗宿主病(GVHD)[1]影响了结果。预防GVHD主要有两种方法:抗胸腺细胞或抗t淋巴细胞球蛋白(ATG)和移植后环磷酰胺(PTCy)。ATG提供了广泛的体内t细胞消耗,降低了GVHD的风险,并已被证明可以改善所有供体环境的预后[10]。PTCy主要用于单倍体相同的情况,在移植后选择性地消除增殖的同种异体反应性T细胞,同时保留调节性和记忆性群体,潜在地减轻GVHD,同时支持免疫重建bb0。这两种策略都显示出疗效[2,4 -7],但它们对匹配供体骨髓纤维化(一种具有独特移植动力学的疾病)的相对影响尚不清楚。本研究旨在评估ATG或PTCy治疗MF患者hla匹配移植的结果。这是一项回顾性的、非随机的比较,研究对象是2010年至2024年间接受骨髓纤维化移植的患者。另外,根据中心标准,两组的GVHD预防包括环孢素A联合霉酚酸酯或甲氨蝶呤。加速期或爆发期MF患者被排除在外。移植后2天,PTCy剂量为50 mg/kg/天。接受ATG的患者包括两种不同的品牌:胸腺球蛋白(法国赛诺菲)3.5 mg/kg/天,移植前2天,或Grafalon(德国Neovii) 30 mg/kg/天,移植前3天,匹配的非亲属供者60 mg/kg/天。为了在结果比较中考虑组间的选择偏倚和潜在的混杂因素,我们采用加权倾向评分分析来平衡接受ATG和PTCY患者之间的基线特征。倾向评分模型使用治疗加权逆概率(IPTW)方法生成,其中每个患者由ATG或PTCY组的逆概率加权。加权Cox比例风险模型用于评估生存结局、风险比(wHRs),并对具有竞争风险的终点使用细灰色回归。共纳入539例患者,其中427例接受ATG治疗,112例接受PTCy治疗(补充表1),组间中位年龄具有可比性(58岁vs. 60岁,p = 0.21)。与ATG组相比,PTCy组的供体类型有更匹配的相关供体的趋势(38%比28%,p = 0.06)。组间调节强度差异显著:ATG组以低强度方案为主(79%),而PTCy组近一半患者接受高强度调节(47%;p &lt; 0.001)。ATG组的中位随访时间为4.8年,PTCy组为3.7年(p = 0.12)。我们首先对ATG和PTCy进行了未调整的单变量比较(表1)。在移植方面,接受ATG的患者中性粒细胞恢复明显早于接受PTCy的患者(中位14天vs. 23天,p &lt; 0.001;图1),PTCy后原发性移植失败更频繁(7% vs. 1%: p &lt; 0.001)。血小板植入的累积发生率ATG组为88%,PTCy组为73% (p &lt; 0.001)。ATG组4年复发率(14%)低于PTCy组(33%;p &lt; 0.001), 4年非复发死亡率组间相似(24%对26%;p = 0.53)。4年总生存率倾向于ATG (71% vs. 64%; p = 0.08)。表1。ATG与PTCY的单因素分析。结果:atgptcypneutrophil移植,中位14天,23天,0.001原发性移植失败,1%7%复发率,4年,14%(11-17),33%(24-42),0.001无复发死亡率,4年,24%(21-27),26%(17-35),0.53总生存率,4年,71%(66-75),64%(55-74),0.08慢性GvHD, 4年,50%(45-55),23%(14-32),0.001急性GvHD, 180天,30% (26-34),27% (18-36),0.40GvHD - /无复发生存率,4年,42%(37-47),37%(27-47),0.14倾向评分匹配复发发生率,4年20% (11-29)33% (24-42)0.15GvHD−/无复发生存率,4年31%(23-41)37%(27-47)0.37图1打开图查看器powerpoint中性粒细胞植入的累积发生率、复发、非复发死亡率和总生存率。在GVHD方面(图2),慢性GVHD在ATG组中更为常见,4年时影响50%,而PTCy组为23% (p &lt; 0.001)。此外,慢性GVHD的严重程度在两组之间也有显著差异,ATG组的中重度慢性GVHD发生率为27%,而PTCy组为10% (p = 0.02)。第180天急性GVHD的发生率具有可比性(30% vs 27%; p = 0.40), ATG组的严重急性GVHD III-IV级数值高于PTCy组(10%)(5%)。 ATG组4年GRFS为42%,PTCy组为37%,差异无统计学意义(p = 0.14)。图2在图视图中打开powerpoint急性和慢性GvHD累积发病率。精算GvHD和无复发生存率(GRFS)。接下来我们进行匹配分析。在这里,PTCy患者的复发率仍然高于ATG患者(33%对20%,p = 0.15),而GRFS组之间具有可比性(PTCy组37%对ATG组31%,p = 0.37)。在匹配队列的多变量模型中,与ATG相比,PTCy与慢性GVHD的风险显著降低相关(HR 0.60, p = 0.001), PTCy有增加复发风险的趋势(HR 1.41, p = 0.2)。对于GRFS,我们没有观察到显著差异(HR 0.94; p = 0.7)。总之,这些发现表明,在倾向评分匹配的队列中,没有发现两种预防策略对GRFS的差异影响,GRFS成分的微妙结果表明,与ATG相比,PTCy对慢性GVHD的复发风险更高,但风险更低(支持信息)。GVHD仍然是骨髓纤维化同种异体移植的主要障碍:在最近的一项研究中,据报道,22%的MF患者发生急性GVHD III-IV级,肝脏受累率更高。ATG已被证明可以降低血液恶性肿瘤患者的GVHD,并增加2年后不接受免疫抑制治疗的受体比例[2,7]。移植是同种异体移植后MF患者的另一个关键问题,因为这些患者往往在开始时出现晚期移植、移植物衰竭或移植物功能差的风险更高[10,11]。因此,确定正确的GVHD预防措施对于接受匹配移植的患者至关重要,在这些患者中,移植失败率预计将很低。我们发现PTCy患者移植延迟和移植失败率较高,这与最近的研究结果一致。未来的研究应该探讨PTCy剂量的优化或ATG和PTCy的联合使用是否可以在不影响GVHD保护的情况下降低移植物衰竭风险。移植后复发仍然是一个相关的问题,特别是MF患者。移植领域的关键问题之一是PTCy对GVHD的保护是否与移植物抗白血病效应分离。虽然一些研究表明PTCy不会增加复发[14,15],但其他研究表明,在MF的特定情况下,GVHD与复发之间存在微妙的关联[9,16]。目前的研究不足以以稳健的方式调查PTCy患者复发和GVHD的潜在关联。值得注意的是,MF与其他髓系疾病的一个特别区别是复发的类型及其评估(分子vs.血液学vs.两者都有)[17]。本组复发率较高的一个原因可能是由于密切的移植后随访和临床评估,而大多数注册研究没有可靠的复发率评估,这可能会影响复发率的解释。然而,PTCy的结果与最近的报告[6]密切相关。本研究具有固有的局限性,其回顾性、非随机设计排除了对未测量混杂因素的完全控
{"title":"PTCy or ATG for Matched Transplantation in Myelofibrosis","authors":"Patrizia Chiusolo, Andrea Bacigalupo, Rachel Salit, Thomas Schroeder, Maria Chiara Finazzi, Carmelo Gurnari, Simona Pagliuca, Judith Metzdorf, Christina Rautenberg, Marie Robin, Marie-Thérèse Rubio, Jaroslaw Maciejewski, Uday Popat, Alessandro Rambaldi, Hans Christian Reinhardt, Bart Scott, Nicolaus Kröger, Nico Gagelmann","doi":"10.1002/ajh.70244","DOIUrl":"https://doi.org/10.1002/ajh.70244","url":null,"abstract":"&lt;p&gt;Allogeneic hematopoietic stem cell transplantation remains the only curative therapy, yet outcomes are tempered by graft failure, relapse, infectious complications, and graft-versus-host disease (GVHD) [&lt;span&gt;1&lt;/span&gt;]. Two approaches for GVHD prophylaxis dominate: anti-thymocyte or anti-T-lymphocyte globulin (ATG) and post-transplant cyclophosphamide (PTCy). ATG provides broad in vivo T-cell depletion and reduces GVHD risk and has been shown to improve outcomes in all donor settings [&lt;span&gt;2&lt;/span&gt;]. PTCy, primarily used in the haploidentical setting, acts post-transplant to selectively eliminate proliferating alloreactive T cells while preserving regulatory and memory populations, potentially mitigating GVHD while supporting immune reconstitution [&lt;span&gt;3&lt;/span&gt;]. Both strategies have shown efficacy [&lt;span&gt;2, 4-7&lt;/span&gt;], yet their relative impact in myelofibrosis in the matched donor setting—a disease with unique transplant dynamics—remains unclear. This study aims to evaluate outcomes of HLA-matched transplantation in MF using either ATG or PTCy.&lt;/p&gt;\u0000&lt;p&gt;This was a retrospective, non-randomized comparison in patients undergoing transplantation for myelofibrosis between 2010 and 2024. Additional GVHD prophylaxis in both arms consisted of cyclosporine A together with mycophenolate mofetil or methotrexate, depending on center standards. Patients with accelerated-phase or blast-phase MF were excluded [&lt;span&gt;8&lt;/span&gt;]. Dose for PTCy was 50 mg/kg/day on 2 days after transplant. Patients receiving ATG included two different brands: Thymoglobulin (Sanofi, France) 3.5 mg/kg/day on 2 days before transplantation or Grafalon (Neovii, Germany) 30 mg/kg/day for matched siblings and 60 mg/kg/day for matched unrelated donors on 3 days before transplantation.&lt;/p&gt;\u0000&lt;p&gt;To account for selection bias and potential confounding factors between groups in outcome comparisons, we employed a weighted propensity score analysis to balance baseline characteristics between patients who received ATG versus PTCY. The propensity score model was generated using the inverse probability of treatment weighting (IPTW) approach, where each patient was weighted by the inverse probability of being in the ATG or PTCY group. Weighted Cox proportional hazards models were used to assess survival outcomes, hazard ratios (wHRs), and Fine-Gray regression was used for endpoints with competing risks.&lt;/p&gt;\u0000&lt;p&gt;A total of 539 patients were included, with 427 receiving ATG and 112 PTCy (Supplemental Table 1), and the median age was comparable between groups (58 vs. 60 years, &lt;i&gt;p&lt;/i&gt; = 0.21). Donor type showed a trend toward more matched related donors in the PTCy group compared with ATG (38% vs. 28%, &lt;i&gt;p&lt;/i&gt; = 0.06). Conditioning intensity differed significantly between groups: reduced-intensity regimens were predominant in the ATG group (79%), whereas nearly half of patients in the PTCy group received higher-intensity conditioning (47%; &lt;i&gt;p&lt;/i&gt; &lt; 0.001). Median follow-up was 4.8 years for ","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":"336 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146778789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of CSF3R Mutations on Leukemic Transformation in Severe Congenital Neutropenia: A Retrospective Analysis From the Italian Neutropenia Registry. CSF3R突变对严重先天性中性粒细胞减少症白血病转化的影响:来自意大利中性粒细胞减少登记的回顾性分析。
IF 9.9 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-23 DOI: 10.1002/ajh.70256
Francesco Pegoraro, Agnese Roveta, Laura Giunti, Maria Fay Cortella, Michele Tanturli, Giulia Simiele, Baldassarre Martire, Marta Pillon, Maria Carla Giarratana, Francesco Saettini, Simone Cesaro, Angela Guarina, Elena Mastrodicasa, Giorgio Costagliola, Maria Licciardello, Giulia Carracchia, Angelica Barone, Sonia Bonanomi, Marinella Veltroni, Carlo Dufour, Francesca Fioredda
{"title":"Impact of CSF3R Mutations on Leukemic Transformation in Severe Congenital Neutropenia: A Retrospective Analysis From the Italian Neutropenia Registry.","authors":"Francesco Pegoraro, Agnese Roveta, Laura Giunti, Maria Fay Cortella, Michele Tanturli, Giulia Simiele, Baldassarre Martire, Marta Pillon, Maria Carla Giarratana, Francesco Saettini, Simone Cesaro, Angela Guarina, Elena Mastrodicasa, Giorgio Costagliola, Maria Licciardello, Giulia Carracchia, Angelica Barone, Sonia Bonanomi, Marinella Veltroni, Carlo Dufour, Francesca Fioredda","doi":"10.1002/ajh.70256","DOIUrl":"https://doi.org/10.1002/ajh.70256","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":" ","pages":""},"PeriodicalIF":9.9,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147275817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Artificial Intelligence‐Based Analysis of Central Nervous System Vasculopathy in Pediatric Sickle Cell Anemia 基于人工智能的小儿镰状细胞性贫血中枢神经系统血管病变分析
IF 12.8 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-23 DOI: 10.1002/ajh.70251
Meredith E. Fay, Raghav Tandon, Teresa Latham, Albert J. Lee, Angela E. Rankine‐Mullins, Marvin Reid, Cassie S. Mitchell, Russell E. Ware, Wilbur A. Lam
In children with sickle cell anemia (SCA), central nervous system (CNS) complications such as chronic vasculopathy, silent cerebral infarcts, and overt stroke cause significant morbidity and mortality, and remain difficult to predict. Here, we coupled pediatric magnetic resonance angiography (MRA) neuroimaging data from a completed clinical trial with artificial intelligence (AI)–based techniques to investigate associations between vascular morphology and clinical risk groups. Using an automated computer vision workflow, we generated quantitative metrics describing individual vessels, including small vessels not captured by conventional radiologic scoring. We then applied open‐source machine learning algorithms, including: clustering to identify natural groupings within the data, classification to differentiate scans by clinical risk category, and scaled event‐based modeling to order vascular features according to relative changes observed across the cohort. Across these approaches, vessel remodeling at branch points and increased vessel tortuosity consistently emerged as among the earliest observed vascular features distinguishing high‐risk groups, independent of transcranial Doppler ultrasound velocities. These retrospective findings describe associations between MRA‐derived vascular features and clinical groups, but do not establish causality or predict future events. Our results demonstrate that quantitative vascular metrics be extracted from already‐obtained imaging data, without requiring additional patient procedures, and may complement existing risk stratification methods. In addition, as current guidelines recommend neuroimaging in school‐aged children with SCA, and as MRA technologies continue to advance, our results support larger‐scale prospective studies to validate computer vision‐based biomarkers. Ultimately, these approaches may inform future studies aimed at improving SCA‐related CNS complications and support more refined clinical characterization.
在患有镰状细胞性贫血(SCA)的儿童中,中枢神经系统(CNS)并发症如慢性血管病变、无症状性脑梗死和明显的脑卒中可导致显著的发病率和死亡率,并且仍然难以预测。在这里,我们将一项已完成的临床试验的儿童磁共振血管造影(MRA)神经成像数据与基于人工智能(AI)的技术结合起来,研究血管形态与临床风险群体之间的关系。使用自动计算机视觉工作流程,我们生成了描述单个血管的定量指标,包括传统放射评分无法捕获的小血管。然后,我们应用开源机器学习算法,包括:聚类来识别数据中的自然分组,分类来区分临床风险类别的扫描,以及缩放基于事件的建模,根据整个队列中观察到的相对变化来排序血管特征。在这些方法中,分支点的血管重构和血管扭曲度增加一直是区分高危人群的最早观察到的血管特征,与经颅多普勒超声速度无关。这些回顾性研究结果描述了MRA衍生血管特征与临床组之间的关联,但没有建立因果关系或预测未来事件。我们的研究结果表明,定量血管指标可以从已经获得的成像数据中提取,而不需要额外的患者程序,并且可以补充现有的风险分层方法。此外,由于目前的指南建议对学龄SCA儿童进行神经成像,并且随着MRA技术的不断进步,我们的结果支持更大规模的前瞻性研究来验证基于计算机视觉的生物标志物。最终,这些方法可以为未来的研究提供信息,旨在改善SCA相关的中枢神经系统并发症,并支持更精确的临床表征。
{"title":"Artificial Intelligence‐Based Analysis of Central Nervous System Vasculopathy in Pediatric Sickle Cell Anemia","authors":"Meredith E. Fay, Raghav Tandon, Teresa Latham, Albert J. Lee, Angela E. Rankine‐Mullins, Marvin Reid, Cassie S. Mitchell, Russell E. Ware, Wilbur A. Lam","doi":"10.1002/ajh.70251","DOIUrl":"https://doi.org/10.1002/ajh.70251","url":null,"abstract":"In children with sickle cell anemia (SCA), central nervous system (CNS) complications such as chronic vasculopathy, silent cerebral infarcts, and overt stroke cause significant morbidity and mortality, and remain difficult to predict. Here, we coupled pediatric magnetic resonance angiography (MRA) neuroimaging data from a completed clinical trial with artificial intelligence (AI)–based techniques to investigate associations between vascular morphology and clinical risk groups. Using an automated computer vision workflow, we generated quantitative metrics describing individual vessels, including small vessels not captured by conventional radiologic scoring. We then applied open‐source machine learning algorithms, including: clustering to identify natural groupings within the data, classification to differentiate scans by clinical risk category, and scaled event‐based modeling to order vascular features according to relative changes observed across the cohort. Across these approaches, vessel remodeling at branch points and increased vessel tortuosity consistently emerged as among the earliest observed vascular features distinguishing high‐risk groups, independent of transcranial Doppler ultrasound velocities. These retrospective findings describe associations between MRA‐derived vascular features and clinical groups, but do not establish causality or predict future events. Our results demonstrate that quantitative vascular metrics be extracted from already‐obtained imaging data, without requiring additional patient procedures, and may complement existing risk stratification methods. In addition, as current guidelines recommend neuroimaging in school‐aged children with SCA, and as MRA technologies continue to advance, our results support larger‐scale prospective studies to validate computer vision‐based biomarkers. Ultimately, these approaches may inform future studies aimed at improving SCA‐related CNS complications and support more refined clinical characterization.","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":"2 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146778373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunoglobulin Light Chain Amyloidosis: 2026 Update on Diagnosis, Prognosis, and Treatment 免疫球蛋白轻链淀粉样变性:2026诊断、预后和治疗的最新进展
IF 12.8 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-22 DOI: 10.1002/ajh.70246
Morie A. Gertz
Disease Overview AL amyloidosis is a clonal plasma cell disorder in which fragments of immunoglobulin light or heavy chain are deposited in tissues. Clinical features depend on organs involved but can include HFpEF, nephrotic syndrome, hepatic dysfunction, peripheral/autonomic neuropathy, and “atypical smoldering multiple myeloma or MGUS.” Diagnosis Tissue biopsy stained with Congo red demonstrating amyloid deposits with apple‐green birefringence is required. Organ biopsy is not required in 85% of patients. Verification that amyloid is composed of immunoglobulin light chains is mandatory. Prognosis N‐terminal pro–brain natriuretic peptide (NT‐proBNP or BNP), serum troponin T (or I), and difference between involved and uninvolved immunoglobulin free light chain values are used to classify patients into four stages; 5 year survivals are 82%, 62%, 34%, and 20% respectively. Therapy All patients with a systemic amyloid syndrome require therapy to prevent deposition of amyloid in other organs and prevent progressive organ failure. Current first line therapy with the best outcome is daratumumab, bortezomib, cyclophosphamide, and dexamethasone. The goal of therapy is a ≥ VGPR. In patients failing to achieve this depth of response, options for consolidation include pomalidomide, stem cell transplantation, and venetoclax. T‐cell redirecting therapies, both bispecific antibodies and car T, show high level activity and may soon become standard second‐line therapy. Future Challenges Delayed diagnosis remains a major obstacle to initiating effective therapy prior to the development of end‐stage organ failure. An antibody to deplete deposited κ fibrils has reported benefit in patients with cardiomyopathy.
AL淀粉样变性是一种克隆性浆细胞疾病,免疫球蛋白轻链或重链片段在组织中沉积。临床特征取决于受累的器官,但可能包括HFpEF、肾病综合征、肝功能障碍、周围/自主神经病变和“非典型阴燃型多发性骨髓瘤或MGUS”。诊断:需要组织活检用刚果红染色,显示苹果绿双折射淀粉样蛋白沉积。85%的患者不需要进行器官活检。淀粉样蛋白由免疫球蛋白轻链组成的验证是强制性的。预后采用N端脑钠肽前体(NT‐proBNP或BNP)、血清肌钙蛋白T(或I)、受累和未受累免疫球蛋白游离轻链值的差异将患者分为四个阶段;5年生存率分别为82%、62%、34%和20%。所有患有全身性淀粉样蛋白综合征的患者都需要治疗以防止淀粉样蛋白在其他器官的沉积和防止进行性器官衰竭。目前疗效最好的一线治疗是达拉单抗、硼替佐米、环磷酰胺和地塞米松。治疗目标是VGPR≥。对于无法达到这种深度反应的患者,可选择的巩固方法包括泊马度胺、干细胞移植和维托克拉克斯。T细胞重定向疗法,包括双特异性抗体和car - T,显示出高水平的活性,可能很快成为标准的二线治疗。未来的挑战延迟诊断仍然是在发展为终末期器官衰竭之前开始有效治疗的主要障碍。据报道,一种用于消耗沉积κ原纤维的抗体对心肌病患者有益。
{"title":"Immunoglobulin Light Chain Amyloidosis: 2026 Update on Diagnosis, Prognosis, and Treatment","authors":"Morie A. Gertz","doi":"10.1002/ajh.70246","DOIUrl":"https://doi.org/10.1002/ajh.70246","url":null,"abstract":"Disease Overview AL amyloidosis is a clonal plasma cell disorder in which fragments of immunoglobulin light or heavy chain are deposited in tissues. Clinical features depend on organs involved but can include HFpEF, nephrotic syndrome, hepatic dysfunction, peripheral/autonomic neuropathy, and “atypical smoldering multiple myeloma or MGUS.” Diagnosis Tissue biopsy stained with Congo red demonstrating amyloid deposits with apple‐green birefringence is required. Organ biopsy is not required in 85% of patients. Verification that amyloid is composed of immunoglobulin light chains is mandatory. Prognosis N‐terminal pro–brain natriuretic peptide (NT‐proBNP or BNP), serum troponin T (or I), and difference between involved and uninvolved immunoglobulin free light chain values are used to classify patients into four stages; 5 year survivals are 82%, 62%, 34%, and 20% respectively. Therapy All patients with a systemic amyloid syndrome require therapy to prevent deposition of amyloid in other organs and prevent progressive organ failure. Current first line therapy with the best outcome is daratumumab, bortezomib, cyclophosphamide, and dexamethasone. The goal of therapy is a ≥ VGPR. In patients failing to achieve this depth of response, options for consolidation include pomalidomide, stem cell transplantation, and venetoclax. T‐cell redirecting therapies, both bispecific antibodies and car T, show high level activity and may soon become standard second‐line therapy. Future Challenges Delayed diagnosis remains a major obstacle to initiating effective therapy prior to the development of end‐stage organ failure. An antibody to deplete deposited κ fibrils has reported benefit in patients with cardiomyopathy.","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":"8 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Phase 1 Study of Daratumumab, Ixazomib, and Dexamethasone in AL Amyloidosis. 达拉单抗、伊唑唑米和地塞米松治疗AL淀粉样变性的1期研究
IF 9.9 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-19 DOI: 10.1002/ajh.70239
Hans C Lee, Melody R Becnel, Lei Feng, Oren Pasvolsky, Astrid Murga, Ralph J Johnson, Sheeba K Thomas, Qaiser Bashir, Muzaffar H Qazilbash, Raphael Steiner, Swaminathan P Iyer, Donna M Weber, Krina K Patel, Gregory P Kaufman, Elisabet E Manasanch, Robert Z Orlowski
{"title":"A Phase 1 Study of Daratumumab, Ixazomib, and Dexamethasone in AL Amyloidosis.","authors":"Hans C Lee, Melody R Becnel, Lei Feng, Oren Pasvolsky, Astrid Murga, Ralph J Johnson, Sheeba K Thomas, Qaiser Bashir, Muzaffar H Qazilbash, Raphael Steiner, Swaminathan P Iyer, Donna M Weber, Krina K Patel, Gregory P Kaufman, Elisabet E Manasanch, Robert Z Orlowski","doi":"10.1002/ajh.70239","DOIUrl":"https://doi.org/10.1002/ajh.70239","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":" ","pages":""},"PeriodicalIF":9.9,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TP53 Mutations and Circulating Blasts ≥ 20% Are the Primary Determinants of Survival in Accelerated/Blast‐Phase Myeloproliferative Neoplasms Treated With Frontline Venetoclax Plus Hypomethylating Agent TP53突变和循环母细胞≥20%是一线Venetoclax加低甲基化药物治疗加速/母细胞期骨髓增生性肿瘤患者存活的主要决定因素
IF 12.8 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-19 DOI: 10.1002/ajh.70248
Naseema Gangat, Momna Warraich, Sudhesh Kumar, Mahnoor Fatima, Kristen McCullough, Kebede H. Begna, Aref Al‐Kali, Mrinal M. Patnaik, William J. Hogan, Abhishek Mangaonkar, Antoine N. Saliba, Mehrdad Hefazi Torghabeh, Hassan Alkhateeb, Mithun V. Shah, James M. Foran, Talha Badar, Jeanne M. Palmer, Cecilia Arana Yi, Animesh Pardanani, Ayalew Tefferi
{"title":" TP53 Mutations and Circulating Blasts ≥ 20% Are the Primary Determinants of Survival in Accelerated/Blast‐Phase Myeloproliferative Neoplasms Treated With Frontline Venetoclax Plus Hypomethylating Agent","authors":"Naseema Gangat, Momna Warraich, Sudhesh Kumar, Mahnoor Fatima, Kristen McCullough, Kebede H. Begna, Aref Al‐Kali, Mrinal M. Patnaik, William J. Hogan, Abhishek Mangaonkar, Antoine N. Saliba, Mehrdad Hefazi Torghabeh, Hassan Alkhateeb, Mithun V. Shah, James M. Foran, Talha Badar, Jeanne M. Palmer, Cecilia Arana Yi, Animesh Pardanani, Ayalew Tefferi","doi":"10.1002/ajh.70248","DOIUrl":"https://doi.org/10.1002/ajh.70248","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":"413 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146215607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hemophagocytic Macrophages in the Peripheral Blood of a Critically Ill Patient With COVID ‐19 and RSV Infection COVID - 19和RSV感染危重患者外周血中的巨噬细胞
IF 12.8 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-19 DOI: 10.1002/ajh.70243
Ashik Zala, Ahmed Sadek, Ahmed Elsaid, Ketan C. Patel, Maximiliano Ramia De Cap, Barbara J. Bain
{"title":"Hemophagocytic Macrophages in the Peripheral Blood of a Critically Ill Patient With COVID ‐19 and RSV Infection","authors":"Ashik Zala, Ahmed Sadek, Ahmed Elsaid, Ketan C. Patel, Maximiliano Ramia De Cap, Barbara J. Bain","doi":"10.1002/ajh.70243","DOIUrl":"https://doi.org/10.1002/ajh.70243","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":"18 2 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146215823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of a Newly Discovered Non‐Coding Variant in the EPO Gene Identified in Two Unrelated Italian Pedigrees With Erythrocytosis 在两个无亲缘关系的意大利红细胞病家系中发现的EPO基因新发现的非编码变异的特征
IF 12.8 1区 医学 Q1 HEMATOLOGY Pub Date : 2026-02-19 DOI: 10.1002/ajh.70238
Barbara Mora, Valentina Bellani, Daniela Pietra, Elena Tagliaferri, Daniele Cattaneo, Oscar Borsani, Alessandra Iurlo, Elisa Fermo, Paola Bianchi, Elisa Rumi, Francesco Passamonti
{"title":"Characterization of a Newly Discovered Non‐Coding Variant in the EPO Gene Identified in Two Unrelated Italian Pedigrees With Erythrocytosis","authors":"Barbara Mora, Valentina Bellani, Daniela Pietra, Elena Tagliaferri, Daniele Cattaneo, Oscar Borsani, Alessandra Iurlo, Elisa Fermo, Paola Bianchi, Elisa Rumi, Francesco Passamonti","doi":"10.1002/ajh.70238","DOIUrl":"https://doi.org/10.1002/ajh.70238","url":null,"abstract":"","PeriodicalId":7724,"journal":{"name":"American Journal of Hematology","volume":"107 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146215608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
American Journal of Hematology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1