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Functional multiomics reveals genetic and pharmacologic regulation of surface CD38 in multiple myeloma 功能多组学揭示了多发性骨髓瘤表面 CD38 的遗传和药物调控机制
Pub Date : 2024-06-10 DOI: 10.1016/j.bneo.2024.100025

Abstract

CD38 is a surface ectoenzyme expressed at high levels on myeloma plasma cells and is the target for the monoclonal antibodies (mAbs) daratumumab and isatuximab. Pretreatment CD38 density on tumor cells is an important determinant of mAb efficacy. Several small molecules have been found to increase tumor surface CD38, with the goal of boosting mAb efficacy in a cotreatment strategy. Numerous other CD38-targeting therapeutics are currently in preclinical or clinical development. Here, we sought to extend our currently limited insight into CD38 surface expression by using a multiomics approach. Genome-wide CRISPR interference screens integrated with patient–centered epigenetic analysis confirmed known regulators of CD38, such as RARA, while revealing XBP1 and SPI1 as other key transcription factors governing surface CD38 levels. CD38 knockdown followed by cell surface proteomics demonstrated no significant remodeling of the myeloma “surfaceome” after genetically induced loss of this antigen. Integrated transcriptome and surface proteome data confirmed high specificity of all-trans retinoic acid in upregulating CD38, in contrast to the broader effects of azacytidine and panobinostat. Finally, unbiased phosphoproteomics identified inhibition of MAP kinase pathway signaling in tumor cells after daratumumab treatment. Our work provides a resource to design strategies to enhance efficacy of CD38-targeting immunotherapies in myeloma.

摘要CD38是一种在骨髓瘤浆细胞上高水平表达的表面外切酶,是单克隆抗体(mAbs)达拉单抗和伊沙妥昔单抗的靶点。治疗前肿瘤细胞上的 CD38 密度是决定 mAb 疗效的重要因素。目前已发现几种小分子可增加肿瘤表面的 CD38,从而在联合治疗策略中提高 mAb 的疗效。目前还有许多其他 CD38 靶向疗法正在进行临床前或临床开发。在这里,我们试图利用多组学方法扩展我们目前对 CD38 表面表达的有限了解。全基因组 CRISPR 干扰筛选与以患者为中心的表观遗传学分析相结合,证实了 CD38 的已知调控因子,如 RARA,同时揭示了 XBP1 和 SPI1 是调控表面 CD38 水平的其他关键转录因子。CD38基因敲除后的细胞表面蛋白质组学分析表明,基因诱导的CD38抗原丢失后,骨髓瘤 "表面组 "没有明显重塑。转录组和表面蛋白质组的综合数据证实,全反式维甲酸在上调 CD38 方面具有高度特异性,而阿扎胞苷和帕诺比诺司他的作用则更为广泛。最后,无偏磷蛋白组学确定了达拉单抗治疗后对肿瘤细胞中MAP激酶通路信号的抑制作用。我们的研究为设计提高骨髓瘤CD38靶向免疫疗法疗效的策略提供了资源。
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引用次数: 0
Real-world experience with targeted therapy in patients with histiocytic neoplasms in the Netherlands and in Belgium 荷兰和比利时组织细胞肿瘤患者接受靶向治疗的实际经验
Pub Date : 2024-06-10 DOI: 10.1016/j.bneo.2024.100023

Abstract

Histiocytic disorders are rare hematologic neoplasms characterized by a notable dependence on mitogen-activated protein kinase signaling. Targeted therapy is an emerging treatment option, yet the number of reported patients remains limited. Here, we describe 40 patients with histiocytic neoplasms who were treated with targeted therapy in 7 tertiary referral hospitals from the Netherlands and Belgium. The cohort comprised of 6 (15%) children and 34 (85%) adults with diverse histiocytoses, including Langerhans cell histiocytosis (LCH; n = 12), Erdheim–Chester disease (n = 14), central nervous system xanthogranuloma (n = 2), Rosai–Dorfman disease (n = 3), histiocytic sarcoma (n = 2), ALK–positive histiocytosis (n = 1), and mixed/unclassifiable histiocytosis (n = 6). Five patients were included in a clinical trial; 35 (88%) received BRAF/MEK inhibitors outside of trials. Among these 35 patients with available follow-up data, median time on targeted treatment was 1.9 years (range, 0.04-5.8 years). Complete or partial responses were observed in 25 of 27 (93%) patients treated for multisystemic and/or solid lesions and 2 of 8 (25%) patients treated for neurodegenerative LCH. Responses were generally durable, although 10 patients lost response after dose reduction or therapy interruption. Responses were recaptured in 9 of 10 cases. Two patients developed new or progressive neurodegenerative lesions: 1 during and 1 after vemurafenib therapy. At last follow-up, 8 adults had stopped targeted therapy because of toxicity. This study corroborates the favorable outcomes of BRAF/MEK inhibition in patients with histiocytosis described previously. However, it also highlights limitations and calls for prospective studies.

摘要 组织细胞疾病是一种罕见的血液肿瘤,其特点是明显依赖于丝裂原活化蛋白激酶信号传导。靶向治疗是一种新兴的治疗方法,但报道的患者人数仍然有限。在这里,我们描述了在荷兰和比利时的 7 家三级转诊医院接受靶向治疗的 40 名组织细胞瘤患者。其中包括6名儿童(15%)和34名成人(85%),他们患有不同的组织细胞瘤,包括朗格汉斯细胞组织细胞增生症(Langerhans cell histiocytosis,LCH;n = 12)、埃尔德海姆-切斯特病(n = 14)、中枢神经系统黄原细胞瘤(n = 2)、罗赛-多夫曼病(n = 3)、组织细胞肉瘤(n = 2)、ALK 阳性组织细胞增生症(n = 1)和混合/不可分类组织细胞增生症(n = 6)。5名患者被纳入临床试验;35名患者(88%)在试验之外接受了BRAF/MEK抑制剂治疗。在这35名有随访数据的患者中,接受靶向治疗的中位时间为1.9年(0.04-5.8年)。在治疗多系统和/或实体病变的 27 例患者中,有 25 例(93%)观察到了完全或部分反应;在治疗神经退行性 LCH 的 8 例患者中,有 2 例(25%)观察到了完全或部分反应。虽然有10名患者在减少剂量或中断治疗后失去了反应,但反应一般都很持久。10例患者中有9例重新获得了应答。两名患者出现了新的或进展性神经退行性病变:1例在维莫非尼治疗期间,1例在维莫非尼治疗后。在最后一次随访中,有8名成人患者因毒性而停止了靶向治疗。这项研究证实了之前描述的组织细胞增生症患者接受 BRAF/MEK 抑制治疗的良好疗效。不过,该研究也强调了其局限性,并呼吁开展前瞻性研究。
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引用次数: 0
Venetoclax and hypomethylating agents in octogenarians and nonagenarians with acute myeloid leukemia Venetoclax和低甲基化药物在患有急性髓性白血病的耄耋老人中的应用
Pub Date : 2024-06-01 DOI: 10.1016/j.bneo.2024.100016
Ellen Madarang , Jillian Lykon , Wei Zhao , Mikkael A. Sekeres , Terrence Bradley , Namrata S. Chandhok , Justin Taylor , Sangeetha Venugopal , Tulay Koru-Sengul , Sunil Girish Iyer , Jason S. Gilbert , Ryan M. Miller , Jacopo Nanni , Irene Zacheo , Agnese Mattei , Najla Al Ali , Ashwin Kishtagari , Giovanni Marconi , David A. Sallman , Daniel A. Pollyea , Justin Watts

Abstract

Venetoclax (VEN) plus a hypomethylating agent (HMA) regimen is the standard of care for older adults with acute myeloid leukemia (AML); however, it is associated with significant myelosuppression and complications, potentially limiting its use in those who are very old. We performed a multicenter retrospective analysis of VEN-HMA treatment in octogenarians and nonagenarians to further understand the tolerability, feasibility, dosing considerations, and clinical efficacy in this unique group. Patients with AML aged ≥80 years who received VEN-HMA between March 2015 and April 2022 were reviewed. VEN-HMA dosing was determined by treating physician, accounting for CYP3A4 drug interaction dose adjustments. In total, 154 patients were included, with a median age of 82 years (range, 80-92), who received treatment with VEN-HMA (83% with azacitidine and 17% with decitabine). Most patients (53%) had European LeukemiaNet 2017 adverse risk AML, 33% had intermediate, 8% had favorable, and 6% were unknown. With a median follow-up of 7.7 months, 36 patients (23%) remained in remission, with 31 (20%) still on VEN-HMA. The 30-day and 60-day mortality rates were 8.5% and 17%, respectively. The composite complete remission (CRc) rate for patients with newly diagnosed AML without prior myelodysplastic syndrome was 73% (48 of 66). Median overall survival (OS) was 8.1 months, and in patients who achieved a response (CRc), median OS was 13.2 months. Landmark analysis from the time CRc was first achieved showed that patients receiving VEN for ≤14 days had improved OS; median, 24.0 months. Patients who are very old can be treated safely with combination VEN-HMA with expectations of dose reductions and cycle extensions to ensure tolerability over the long term.

摘要 Venetoclax(VEN)加低甲基化药物(HMA)方案是治疗老年急性髓性白血病(AML)患者的标准疗法;然而,该疗法与明显的骨髓抑制和并发症有关,可能会限制其在高龄患者中的应用。我们对八旬老人和非耄耋老人的 VEN-HMA 治疗进行了多中心回顾性分析,以进一步了解这一特殊群体的耐受性、可行性、用药注意事项和临床疗效。我们对 2015 年 3 月至 2022 年 4 月期间接受 VEN-HMA 治疗的年龄≥80 岁的急性髓细胞白血病患者进行了回顾性分析。VEN-HMA 的剂量由主治医生决定,并考虑到 CYP3A4 药物相互作用的剂量调整。共纳入了 154 例接受 VEN-HMA 治疗的患者,中位年龄为 82 岁(80-92 岁)(83% 接受阿扎胞苷治疗,17% 接受地西他滨治疗)。大多数患者(53%)为欧洲白血病网络2017年不良风险急性髓细胞白血病,33%为中等风险,8%为有利风险,6%为未知风险。中位随访时间为7.7个月,36名患者(23%)仍处于缓解期,其中31名患者(20%)仍在接受VEN-HMA治疗。30天和60天的死亡率分别为8.5%和17%。既往未患骨髓增生异常综合征的新诊断急性髓细胞性白血病患者的综合完全缓解(CRc)率为 73%(66 例中有 48 例)。中位总生存期(OS)为8.1个月,在获得应答(CRc)的患者中,中位OS为13.2个月。从首次获得 CRc 开始进行的标志性分析显示,接受 VEN 治疗时间≤14 天的患者的 OS 有所改善;中位数为 24.0 个月。高龄患者可以安全地接受VEN-HMA联合治疗,并有望减少剂量和延长周期,以确保长期耐受性。
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引用次数: 0
The landscape of rare genetic variants in familial Waldenström macroglobulinemia 家族性沃登斯特伦巨球蛋白血症的罕见基因变异情况
Pub Date : 2024-06-01 DOI: 10.1016/j.bneo.2024.100013
Alexander Pemov , Jung Kim , Wen Luo , Jia Liu , Cole Graham , Kristine Jones , Delphine DeMangel , Neal D. Freedman , Charles Dumontet , Bin Zhu , Mary L. McMaster , Douglas R. Stewart

Abstract

Waldenström macroglobulinemia (WM) is a rare hematological malignancy. Risk for WM is elevated 20-fold among first-degree relatives of patients with WM. However, the list of variants and genes that cause WM remains incomplete. In this study we analyzed exomes from 64 WM pedigrees for evidence of genetic susceptibility for this malignancy. We determined the frequency of pathogenic (P) or likely pathogenic (LP) variants among patients with WM; performed variant- and gene-level association analyses with the set of 166 WM cases and 681 unaffected controls; and examined the segregation pattern of deleterious variants among affected members in each pedigree. We identified P/LP variants in TREX1 and SAMHD1 (genes that function at the interface between innate immune response, genotoxic surveillance, and DNA repair) segregating in patients with WM from 2 pedigrees. There were additional P/LP variants in cancer-predisposing genes (eg, POT1, RECQL4, PTPN11, PMS2). In variant- and gene-level analyses, no associations were statistically significant after multiple testing correction. On a pathway level, we observed involvement of genes that play a role in telomere maintenance (q-value = 0.02), regulation of innate immune response (q-value = 0.05), and DNA repair (q-value = 0.08). Affected members of each pedigree shared multiple deleterious variants (median, n = 18), but the overlap between the families was modest. In summary, P/LP variants in highly penetrant genes constitute a modest proportion of the deleterious variants; each pedigree is largely unique in its genetic architecture, and multiple genes are likely involved in the etiology of WM.

摘要瓦尔登斯特伦巨球蛋白血症(WM)是一种罕见的血液恶性肿瘤。在WM患者的一级亲属中,罹患WM的风险增加了20倍。然而,导致 WM 的变异和基因列表仍不完整。在这项研究中,我们分析了 64 个 WM 血统的外显子组,以寻找这种恶性肿瘤遗传易感性的证据。我们确定了 WM 患者中致病(P)变异或可能致病(LP)变异的频率;对 166 例 WM 病例和 681 例未受影响的对照进行了变异和基因水平的关联分析;并研究了每个血统中受影响成员之间有害变异的分离模式。我们在两个血统的 WM 患者中发现了 TREX1 和 SAMHD1(在先天免疫反应、基因毒性监控和 DNA 修复之间起作用的基因)的 P/LP 变异。癌症易感基因(如 POT1、RECQL4、PTPN11 和 PMS2)中也存在其他 P/LP 变异。在变异和基因水平的分析中,经多重检验校正后,没有发现有统计学意义的关联。在通路水平上,我们观察到参与端粒维持(q 值 = 0.02)、先天性免疫反应调节(q 值 = 0.05)和 DNA 修复(q 值 = 0.08)的基因。每个血统中受影响的成员都有多个有害变体(中位数,n = 18),但家族间的重叠率不高。总之,高渗透性基因中的 P/LP 变异在有害变异中所占比例不大;每个血统的遗传结构基本上都是独特的,多个基因可能参与了 WM 的病因学研究。
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引用次数: 0
CD302 predicts achievement of deep molecular response in patients with chronic myeloid leukemia treated with imatinib CD302 可预测接受伊马替尼治疗的慢性髓性白血病患者能否获得深度分子反应
Pub Date : 2024-06-01 DOI: 10.1016/j.bneo.2024.100014
Chung Hoow Kok , Yazad Irani , Jade Clarson , Verity Saunders , Phuong Dang , Naranie Shanmuganathan , Susan Branford , David Yeung , Agnes S. M. Yong , Timothy P. Hughes

Abstract

Achieving a deep molecular response (DMR) is a prerequisite for treatment-free remission in chronic myeloid leukemia (CML) and a key milestone for patients with CML. This study identified patients unlikely to achieve a 5-year DMR through differential expression of cluster of differentiation (CD) genes, and clinical variables at diagnosis. Peripheral blood samples (n = 131) from patients treated with imatinib or nilotinib underwent transcriptomic microarray profiling. The decision-tree analysis delineated 2 distinct poor-risk (PR) cohorts, distinguished by high 3-month BCR::ABL1% (PR-1), or high CD302 expression (PR-2). The 5-years DMR achievement rate was significantly lower in both PR groups than in the good-risk (GR) group in patients treated frontline with imatinib (0% vs 27% vs 83%; P < .0001) or nilotinib (PR-2 vs GR, 17% vs 83%; P = .02). Gene-set enrichment analysis revealed reduced expression of cell cycle–related genes in PR-2, as well as increased metabolism and STAT3 pathway genes, which has previously been linked to leukemic cell persistence and resistance to tyrosine kinase inhibitors. Moreover, PR-2 had a higher frequency of CD34+CD302+ and CD14+CD302+ cells than GR samples. Strategies aimed at targeting STAT3 and/or metabolic pathways associated with high CD302 may provide novel therapeutic approaches that could help improve treatment outcomes and eradicate residual disease.

摘要获得深度分子反应(DMR)是慢性粒细胞白血病(CML)无治疗缓解的先决条件,也是CML患者的一个重要里程碑。本研究通过分化簇(CD)基因的差异表达和诊断时的临床变量来确定不太可能实现5年DMR的患者。对接受伊马替尼或尼洛替尼治疗的患者的外周血样本(n = 131)进行了转录组芯片分析。决策树分析划分出了2个不同的低风险(PR)队列,分别是3个月BCR::ABL1%高表达(PR-1)或CD302高表达(PR-2)。在接受伊马替尼(0% vs 27% vs 83%; P <.0001)或尼洛替尼(PR-2 vs GR, 17% vs 83%; P = .02)一线治疗的患者中,两个PR组的5年DMR达标率均显著低于良险(GR)组。基因集富集分析显示,PR-2 中细胞周期相关基因的表达减少,代谢和 STAT3 通路基因的表达增加,而 STAT3 通路基因以前曾与白血病细胞的持久性和对酪氨酸激酶抑制剂的耐药性有关。此外,与GR样本相比,PR-2样本中CD34+CD302+和CD14+CD302+细胞的频率更高。针对STAT3和/或与高CD302相关的代谢途径的策略可能会提供新的治疗方法,有助于改善治疗效果和根除残留疾病。
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引用次数: 0
Real-world outcomes of newly diagnosed AML treated with venetoclax and azacitidine or low-dose cytarabine in the UK NHS 在英国国家医疗服务系统(NHS)中使用 Venetoclax 和阿扎胞苷或小剂量阿糖胞苷治疗新诊断急性髓细胞白血病的实际效果
Pub Date : 2024-05-23 DOI: 10.1016/j.bneo.2024.100017
Jad Othman , Ho Pui Jeff Lam , Sarah Leong , Faisal Basheer , Islam Abdallah , Kathryn Fleming , Priyanka Mehta , Heba Yassin , John Laurie , Michael Austin , Paolo Gallipoli , Tom Taylor , Mike Dennis , Johnathon Elliot , Georgina Clarke , Raymond Dang , Jennifer Vidler , Pramila Krishnamurthy , Anne-Louise Latif , Pallavi Kalkur , Richard Dillon

Abstract

Venetoclax with azacitidine is the standard of care for patients with acute myeloid leukemia (AML) who are unfit for intensive chemotherapy; however, uncertainties remain regarding the treatment schedule, accurate prognostication, and outcomes for patients treated outside clinical trials. The option of venetoclax with low-dose cytarabine (LDAC) is also available; however, it is not clear for which patients it may be a useful alternative. Here, we report a large real-world cohort of 654 patients treated in 53 UK hospitals with either venetoclax and azacitidine (n = 587) or LDAC (n = 67). The median age was 73 years, and 59% had de novo AML. Most patients received 100 mg of venetoclax with an azole antifungal. In cycle 1, patients spent a median of 14 days in the hospital, and 85% required red cell transfusion, 59% platelet transfusion, and 63% required IV antibiotics. Supportive care requirements significantly reduced after the first cycle. Patients receiving venetoclax-azacitidine had a complete remission (CR)/CR with incomplete hematological recovery rate of 67%, day 30 and day 60 mortality of 5% and 8%, respectively, and median overall survival of 13.6 months. Mutations in NPM1, RUNX1, STAG2, and IDH2 were associated with improved survival, whereas age, secondary and therapy-related AML, +8, MECOM rearrangements, complex karyotype, ASXL1, and KIT mutations were associated with poorer survival. Prognostic systems derived specifically for patients treated with venetoclax-azacitidine performed better than the European LeukemiaNet and Medical Research Council classifications; however, improved risk classifications are still required. In the 149 patients with NPM1 mutated AML, outcomes were similar for those treated with venetoclax-azacitidine and venetoclax-LDAC.

摘要 Venetoclax联合阿扎胞苷是不适合接受强化化疗的急性髓性白血病(AML)患者的标准治疗方案;然而,在临床试验之外接受治疗的患者,其治疗方案、准确预后和疗效仍存在不确定性。此外,还可以选择 Venetoclax 与低剂量阿糖胞苷(LDAC)联合治疗;然而,目前还不清楚对哪些患者来说,这可能是一种有用的替代疗法。在此,我们报告了一个大型真实世界队列,该队列包括在英国 53 家医院接受 Venetoclax 和阿扎胞苷(n = 587)或 LDAC(n = 67)治疗的 654 名患者。中位年龄为73岁,59%的患者为新生急性髓细胞性白血病。大多数患者接受100毫克的venetoclax和一种唑类抗真菌药物治疗。在第一周期,患者住院时间中位数为14天,85%的患者需要输红细胞,59%的患者需要输血小板,63%的患者需要静脉注射抗生素。第一个周期后,支持性治疗的需求明显减少。接受venetoclax-azacitidine治疗的患者完全缓解(CR)/CR伴不完全血液学恢复率为67%,第30天和第60天死亡率分别为5%和8%,中位总生存期为13.6个月。NPM1、RUNX1、STAG2和IDH2的突变与生存率提高有关,而年龄、继发性和治疗相关AML、+8、MECOM重排、复杂核型、ASXL1和KIT突变则与生存率降低有关。专为接受文尼他克-阿扎胞苷治疗的患者设计的预后系统比欧洲白血病网和医学研究委员会的分类更好,但仍需改进风险分类。在149例NPM1突变急性髓细胞白血病患者中,接受venetoclax-azacitidine和venetoclax-LDAC治疗的患者的预后相似。
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引用次数: 0
Instructive interaction between myelodysplastic hematopoiesis and the bone marrow microenvironment at the single-cell level 骨髓增生异常造血与骨髓微环境在单细胞水平上的指导性相互作用
Pub Date : 2024-05-21 DOI: 10.1016/j.bneo.2024.100021
Johann-Christoph Jann ∗ , Nanni Schmitt ∗ , Alexander Streuer , Qingyu Xu , Vladimir Riabov , Eva Altrock , Nadine Weimer , Verena Nowak , Julia Obländer , Iris Palme , Melda Göl , Marie Demmerle , Felicitas Rapp , Fabian Siegel , Laurenz Steiner , Mahmoud Ghazal , Angelika Duda , Verena Haselmann , Ali Darwich , Ahmed Jawhar , Daniel Nowak

Abstract

Myelodysplastic neoplasms (MDS) are hypothesized to remodel their bone marrow (BM) microenvironment to reinforce conditions for their propagation. In this study, we investigated interactions between MDS cells and the BM niche at single-cell level. In a patient-derived xenograft (PDX) model, we analyzed 13 000 cells from different murine niche cell populations after long-term (>24 weeks) exposure to MDS vs healthy human grafts. Subsequently, we analyzed over 24 000 primary human BM cells enriched for the nonhematopoietic compartment by using whole bone fragments from n = 8 patients with MDS and n = 7 healthy, age-matched donors. In PDX who received MDS transplantation, mesenchymal cell (MSC) subpopulations were forced to overexpress hematopoietic factors such as Cxcl12 and Il7 upon contact with hematopoietic MDS cells as compared with healthy grafts. Single-cell analyses of primary in situ BM cells from patients with MDS showed highly heterogeneous MSC subpopulations on a patient-individual level. We identified inflammatory gene expression profiles as well as overexpression of C-X-C Motif Chemokine Ligand 12, KIT ligand, and Interleukin 7 in MDS MSCs and endothelial cells. In conclusion, we demonstrate reprogramming of the BM microenvironment by MDS cells, pointing to altered MSC subpopulations with increased growth factor expression profiles in a subgroup of patients with MDS.

摘要 骨髓增生异常肿瘤(MDS)被认为会重塑其骨髓(BM)微环境,以强化其繁殖条件。在这项研究中,我们在单细胞水平上研究了MDS细胞与骨髓生态位之间的相互作用。在患者衍生异种移植物(PDX)模型中,我们分析了长期(24 周)暴露于 MDS 与健康人移植物后来自不同小鼠龛细胞群的 13000 个细胞。随后,我们利用来自8名MDS患者和7名年龄匹配的健康供体的全骨碎片,分析了超过24000个富含非造血区的原代人类BM细胞。在接受了 MDS 移植的 PDX 中,与健康移植物相比,间充质干细胞亚群在与造血 MDS 细胞接触时被迫过度表达 Cxcl12 和 Il7 等造血因子。对 MDS 患者的原代原位 BM 细胞进行的单细胞分析表明,在患者个体水平上,间充质干细胞亚群具有高度异质性。我们在 MDS 间充质干细胞和内皮细胞中发现了炎症基因表达谱以及 C-X-C Motif Chemokine Ligand 12、KIT ligand 和白细胞介素 7 的过度表达。总之,我们证明了 MDS 细胞对 BM 微环境的重编程,并指出 MDS 患者亚群中的间充质干细胞亚群发生了改变,生长因子表达谱增加。
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引用次数: 0
Response-guided first-line therapy and treatment of relapse in aggressive lymphoma: 10-year follow-up of the PETAL trial 反应引导的一线疗法和侵袭性淋巴瘤的复发治疗:PETAL 试验的 10 年随访
Pub Date : 2024-05-21 DOI: 10.1016/j.bneo.2024.100018
Ulrich Dührsen , Andreas Bockisch , Bernd Hertenstein , Imke E. Karsten , Frank Kroschinsky , Michael Heuser , Andreas Hochhaus , Heinz-Gert Höffkes , Dirk Behringer , Gabriele Prange-Krex , Mareike Tometten , Martin Grieshammer , Götz U. Grigoleit , Oliver Schmalz , Karin Jordan , Helga Bernhard , Tobias Gaska , Aristoteles Giagounidis , Roland Schroers , Uwe M. Martens , M. Neuhäuser

Abstract

The PETAL (Positron Emission Tomography–Guided Therapy of Aggressive Non-Hodgkin Lymphomas) trial investigated whether treatment intensification after 2 cycles of cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP; plus rituximab [R] for CD20+ lymphomas) improved survival in aggressive non-Hodgkin lymphoma. A total of 754 patients (87.5%) had a negative and 108 (12.5%) had a positive interim positron emission tomography (iPET) scan. iPET-positive patients were randomly assigned to receive another 6 (R-)CHOP cycles or 6 blocks of a more intensive protocol. Interim PET-negative patients received another 4 cycles of R-CHOP with or without 2 additional doses of R. After a median follow-up of 4 years, treatment intensification had not improved outcome. These results were confirmed after 10.3 years of follow-up. The present analysis also describes the management of relapse that was part of the study. Among 240 relapsing patients, 94 of 133 autologous transplantation–eligible patients (70.7%) and 16 of 107 ineligible patients (15.0%) received the salvage treatments recommended in the study protocol. Adherence to recommendations had no impact on outcome. Best results were seen after allogeneic transplantation, followed by autologous transplantation and treatment without transplantation (5-year overall survival rate, 64.3% vs 45.5% vs 22.6%), but patients undergoing allogeneic transplantation were significantly younger and their disease was well controlled at the time of transplantation. Early outcome prediction by iPET, alone or in combination with other methods, is a powerful tool to investigate the value of immunological treatment options for patients with a poor response to chemotherapy. This trial was registered at ClinicalTrials.gov as #NCT00554164.

摘要PETAL(正电子发射断层扫描引导的侵袭性非霍奇金淋巴瘤治疗)试验研究了在环磷酰胺、多柔比星、长春新碱和泼尼松(CHOP;CD20+淋巴瘤加利妥昔单抗[R])治疗2个周期后加强治疗是否能提高侵袭性非霍奇金淋巴瘤患者的生存率。共有 754 名患者(87.5%)的中期正电子发射断层扫描(iPET)结果为阴性,108 名患者(12.5%)的中期正电子发射断层扫描(iPET)结果为阳性。中位随访 4 年后,强化治疗并未改善疗效。这些结果在随访 10.3 年后得到了证实。本分析报告还介绍了作为研究一部分的复发治疗情况。在240名复发患者中,133名符合自体移植条件的患者中有94名(70.7%)和107名不符合条件的患者中有16名(15.0%)接受了研究方案中建议的挽救治疗。遵守建议对结果没有影响。接受同种异体移植的疗效最好,其次是自体移植和不进行移植的治疗(5年总生存率分别为64.3% vs 45.5% vs 22.6%),但接受同种异体移植的患者明显更年轻,而且移植时病情控制良好。通过iPET单独或结合其他方法进行早期结果预测,是研究化疗反应不佳患者免疫治疗方案价值的有力工具。该试验已在 ClinicalTrials.gov 注册,编号为 #NCT00554164。
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引用次数: 0
Optimal number of cycles of bendamustine as initial chemoimmunotherapy for older patients with follicular lymphoma 苯达莫司汀作为老年滤泡性淋巴瘤患者初始化学免疫疗法的最佳周期数
Pub Date : 2024-05-20 DOI: 10.1016/j.bneo.2024.100019
Christopher S. Strouse , Vanessa E. Siebert , Bradley T. Loeffler , Bradley D. McDowell , Brian J. Smith , Brian K. Link

Abstract

Bendamustine is among the most commonly used chemoimmunotherapies for patients with follicular lymphoma (FL). It is typically delivered with a goal regimen consisting of 6 cycles, but it is possible that treatment goals could be achieved with fewer cycles, particularly in older patients. We used data from the National Cancer Institute (NCI) linkage between Surveillance, Epidemiology, and End Results program and Medicare claims to evaluate the overall survival of patients with FL receiving 3 to 4 vs 5 to 6 cycles of bendamustine. Patients receiving 1 to 2 cycles of bendamustine chemotherapy were not included. Patients receiving 5 to 6 cycles of bendamustine were significantly younger (mean age, 75.0 vs 76.2 years; P < .01) and had fewer comorbidities by the NCI comorbidity index (mean score, 1.7 vs 2.0; P = .05) than those receiving 3 to 4 cycles of bendamustine, and on univariate analysis exhibited significantly lower risk of death (hazard ratio [HR], 0.75; 95% confidence interval [CI], 0.57-0.98; P = .04). However, multivariate analysis controlling for age and comorbidity did not reveal a significant association between overall survival and number of cycles of bendamustine (HR, 0.87; 95% CI, 0.66-1.15; P = .33). Limitations inherent to use of data such as these for causal inference are acknowledged. Nonetheless, these analyses suggest some older patients with FL achieve satisfactory survival outcomes even with lesser bendamustine exposure, and future efforts to prospectively identify such patients are warranted.

摘要 班达莫司汀是滤泡性淋巴瘤(FL)患者最常用的化学免疫疗法之一。该疗法的目标疗程通常为 6 个周期,但也有可能只需较少的周期就能达到治疗目标,尤其是对老年患者而言。我们利用美国国家癌症研究所(NCI)监测、流行病学和最终结果项目与医疗保险报销之间的联系数据,评估了接受 3 至 4 个周期与 5 至 6 个周期苯达莫司汀治疗的 FL 患者的总生存率。接受1至2个周期苯达莫司汀化疗的患者不包括在内。与接受3至4个周期苯达莫司汀化疗的患者相比,接受5至6个周期苯达莫司汀化疗的患者明显更年轻(平均年龄为75.0岁 vs 76.2岁;P <.01),根据NCI合并症指数,合并症也更少(平均得分为1.7分 vs 2.0分;P = .05),单变量分析显示其死亡风险明显更低(危险比[HR],0.75;95%置信区间[CI],0.57-0.98;P = .04)。然而,控制年龄和合并症的多变量分析并未显示总生存率与苯达莫司汀周期数之间存在显著关联(HR,0.87;95% CI,0.66-1.15;P = .33)。我们承认使用此类数据进行因果推断存在固有的局限性。尽管如此,这些分析表明,一些年龄较大的 FL 患者即使接触较少的苯达莫司汀也能获得令人满意的生存结果,因此今后有必要对这类患者进行前瞻性鉴别。
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引用次数: 0
Clinical outcomes of patients with newly diagnosed large B-cell lymphoma in a safety-net hospital system 安全网医院系统中新确诊的大 B 细胞淋巴瘤患者的临床疗效
Pub Date : 2024-05-20 DOI: 10.1016/j.bneo.2024.100020
Jun Y. Jiang , Chijioke Nze , Danielle Guffey , Rockbum Kim , Abiodun O. Oluyomi , Omar Rosales , Raka Bandyo , Courtney N. Miller-Chism , Mark M. Udden , Martha P. Mims , Hilary Ma , Gustavo A. Rivero , Akiva Diamond , Purnima S. Teegavarapu , Ang Li ∗ , Christopher R. Flowers ∗

Abstract

Real-world outcome data for patients with large B-cell lymphomas (LBCLs) who are uninsured or have socioeconomic barriers to care are limited. We performed a retrospective cohort study of patients with newly diagnosed LBCL treated in a large safety-net hospital system. Between January 2011 and June 2022, 496 patients aged >18 years were diagnosed with LBCL at Harris Health System, Houston, Texas. The median age was 53 years, 75% were uninsured, and 81% were in the most disadvantaged Area Deprivation Index national quartiles. Most (69%) had stage III/IV disease, 44% had poor-risk disease by the Revised International Prognostic Index (R-IPI), and 17% had a history of HIV infection. The median diagnosis-to-treatment interval was 17 days. The median follow-up time was 53.5 months. Among 464 evaluable patients, 66% achieved a complete response, and 11% had a partial response. Of 48 patients, 26 (54%) eligible for cell therapies received them. At 5 years, event-free and overall survival (OS) rates were 57% and 68%, respectively. Factors that affected OS included Hispanic ethnicity (hazard ratio [HR], 0.70; P = .027), R-IPI (HR, 4.67 for poor vs very good risk; P < .001), National Cancer Institute Comorbidity Index (HR, 1.53 per unit increment; P = .003), hemoglobin (HR, 0.89 per unit increment; P = .002), and International Normalized Ratio (HR, 2.17 per unit increment; P = .007). Insurance status was not associated with differences in OS. In our safety-net health system with robust financial assistance programs and limited access to cell therapies, uninsured status was not associated with inferior outcomes. Addressing barriers to care may improve outcomes in other settings.

摘要 没有保险或有社会经济障碍的大B细胞淋巴瘤(LBCL)患者的实际治疗效果数据非常有限。我们对在一家大型安全网医院系统接受治疗的新诊断 LBCL 患者进行了一项回顾性队列研究。2011年1月至2022年6月期间,德克萨斯州休斯顿哈里斯卫生系统共诊断出496名年龄在18岁以下的LBCL患者。中位年龄为53岁,75%的患者没有保险,81%的患者属于全国最贫困地区贫困指数四分位数。大多数患者(69%)处于疾病的 III/IV 期,44%的患者按照修订版国际预后指数(R-IPI)属于低危疾病,17%的患者有 HIV 感染史。从诊断到治疗的中位间隔为 17 天。中位随访时间为 53.5 个月。在 464 名可评估的患者中,66% 的患者获得了完全应答,11% 的患者获得了部分应答。在48名患者中,有26人(54%)符合细胞疗法的条件,接受了细胞疗法。5年后,无事件生存率和总生存率(OS)分别为57%和68%。影响OS的因素包括西班牙裔(危险比[HR],0.70;P = .027)、R-IPI(HR,4.67,风险差与风险很好;P <.001)、国家癌症研究所综合指数(HR,每单位增量1.53;P = .003)、血红蛋白(HR,每单位增量0.89;P = .002)和国际标准化比率(HR,每单位增量2.17;P = .007)。保险状况与 OS 的差异无关。在我们的安全网医疗系统中,有健全的财政援助计划,但细胞疗法的使用机会有限,未投保与较差的治疗效果无关。解决医疗障碍可能会改善其他环境下的治疗效果。
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引用次数: 0
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Blood Neoplasia
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