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Is one lymphocyte's brake another lymphocyte's gas?
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-02-07 DOI: 10.1126/sciimmunol.adw3656
Thomas T Xu, Shiv Pillai

PD-1 contributes to memory B cell development and robust antibody responses through B cell extrinsic and intrinsic mechanisms.

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引用次数: 0
Is one lymphocyte’s brake another lymphocyte’s gas?
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-02-07
Thomas T. Xu, Shiv Pillai
PD-1 contributes to memory B cell development and robust antibody responses through B cell extrinsic and intrinsic mechanisms.
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引用次数: 0
IL-4 induces CD22 expression to restrain the effector program of virtual memory T cells
IF 24.8 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-02-07 DOI: 10.1126/sciimmunol.adk4841
Bin Yang, Ophélie Piedfort, Guillem Sanchez-Sanchez, Arnaud Lavergne, Meijiao Gong, Garrie Peng, Ariel Madrigal, Georgios Petrellis, Brunette Katsandegwaza, Lucia Rodriguez Rodriguez, Alexis Balthazar, Sarah J. Meyer, Gert Van Isterdael, Julie Van Duyse, Fabienne Andris, Qiang Bai, Thomas Marichal, Bénédicte Machiels, Lars Nitschke, Hamed S. Najafabadi, Irah L. King, David Vermijlen, Benjamin G. Dewals
Parasitic helminths induce the production of interleukin-4 (IL-4), which causes the expansion of virtual memory CD8 + T cells (T VM cells), a cell subset that contributes to the control of coinfection with intracellular pathogens. However, the mechanisms regulating IL-4–dependent T VM cell activation and expansion remain ill defined. Here, we used single-cell RNA sequencing of CD8 + T cells to identify pathways that control IL-4–dependent T VM cell responses. Gene signature analysis of CD8 + T cells identified a cell cluster marked by CD22, a canonical regulator of B cell activation, as a selective surface marker of IL-4–induced T VM cells. CD22 + T VM cells were enriched for interferon-γ and granzyme A and retained a diverse TCR repertoire while enriched in self-reactive CDR3 sequences. CD22 intrinsically regulated the IL-4–induced CD8 + T cell effector program, resulting in reduced responsiveness of CD22 + T VM cells and regulatory functions to infection and inflammation. Thus, helminth-induced IL-4 drives the expansion and activation of T VM cells that is counterinhibited by CD22.
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引用次数: 0
Bone marrow breakout lesions act as key sites for tumor-immune cell diversification in multiple myeloma
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-02-07
Raphael Lutz, Alexandra M. Poos, Llorenç Solé-Boldo, Lukas John, Johanna Wagner, Nina Prokoph, Marc A. Baertsch, Dominik Vonficht, Subarna Palit, Alexander Brobeil, Gunhild Mechtersheimer, Nina Hildenbrand, Stefan Hemmer, Simon Steiger, Sabrina Horn, Wojciech Pepke, David M. Spranz, Christoph Rehnitz, Pooja Sant, Jan-Philipp Mallm, Mirco J. Friedrich, Philipp Reichert, Stefanie Huhn, Andreas Trumpp, Karsten Rippe, Laleh Haghverdi, Stefan Fröhling, Carsten Müller-Tidow, Daniel Hübschmann, Hartmut Goldschmidt, Gerald Willimsky, Sandra Sauer, Marc S. Raab, Simon Haas, Niels Weinhold
The bone marrow microenvironment plays a crucial role in the development of multiple myeloma. As the disease progresses, malignant myeloma cells can evolve to survive outside the bone marrow. However, the processes underlying bone marrow independence and their consequences for immune control remain poorly understood. Here, we conducted single-cell and spatial multiomics analyses of bone marrow–confined intramedullary disease and paired breakout lesions that disrupt the cortical bone. These analyses revealed a distinct cellular microenvironment and architectural features of breakout lesions, characterized by extensive areas of malignant plasma cells interspersed with lesion-specific solitary natural killer and macrophage populations, as well as focal accumulations of immune cell agglomerates. Within these agglomerates, spatially confined T cell clones expanded alongside various immune cells, coinciding with the local genomic evolution of tumor cells. These analyses identify breakout lesions as a hotspot for tumor-immune cell interactions and diversification, representing a key event in myeloma pathogenesis.
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引用次数: 0
Stem-like memory and precursors of exhausted T cells share a common progenitor defined by ID3 expression 类干细胞记忆和衰竭 T 细胞前体共享一个由 ID3 表达定义的共同祖细胞
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-31
Catarina Gago da Graça, Amania A. Sheikh, Dane M. Newman, Lifen Wen, Sining Li, Jian Shen, Yuqi Zhang, Sarah S. Gabriel, David Chisanga, Justine Seow, Annika Poch, Lisa Rausch, Minh-Hanh T. Nguyen, Jayendra Singh, Chun-Hsi Su, Leonie A. Cluse, Carlson Tsui, Thomas N. Burn, Simone L. Park, Bianca Von Scheidt, Laura K. Mackay, Ajithkumar Vasanthakumar, David Bending, Wei Shi, Weiguo Cui, Jan Schröder, Ricky W. Johnstone, Axel Kallies, Daniel T. Utzschneider
Stem-like T cells are attractive immunotherapeutic targets in patients with cancer given their ability to proliferate and differentiate into effector progeny. Thus, identifying T cells with enhanced stemness and understanding their developmental requirements are of broad clinical and therapeutic interest. Here, we demonstrate that during acute infection, the transcriptional regulator inhibitor of DNA binding 3 (ID3) identifies stem-like T cells that are uniquely adapted to generate precursors of exhausted T (Tpex) cells in response to chronic infection or cancer. Expression of ID3 itself enables Tpex cells to sustain T cell responses in chronic infection or cancer, whereas loss of ID3 results in impaired maintenance of CD8 T cell immunity. Furthermore, we demonstrate that interleukin-1 (IL-1) family members, including IL-36β and IL-18, promote the generation of ID3+ T cells that mediate superior tumor control. Overall, we identify ID3 as a common denominator of stem-like T cells in both acute and chronic infections that is specifically required to sustain T cell responses to chronic stimulation.
干样T细胞具有增殖和分化为效应原的能力,是癌症患者极具吸引力的免疫治疗目标。因此,识别干性增强的T细胞并了解它们的发育要求具有广泛的临床和治疗意义。在这里,我们证明了在急性感染期间,DNA结合抑制因子3(ID3)能识别干样T细胞,这些细胞具有独特的适应能力,能在应对慢性感染或癌症时生成衰竭T(Tpex)细胞的前体。ID3本身的表达能使Tpex细胞在慢性感染或癌症中维持T细胞反应,而ID3的缺失会导致CD8 T细胞免疫力的维持受损。此外,我们还证明了白细胞介素-1(IL-1)家族成员,包括 IL-36β 和 IL-18,能促进 ID3+ T 细胞的生成,从而介导卓越的肿瘤控制。总之,我们发现 ID3 是急性和慢性感染中干细胞样 T 细胞的共同特征,它是维持 T 细胞对慢性刺激反应的特殊需要。
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引用次数: 0
Trogocytosis of chimeric antigen receptors between T cells is regulated by their transmembrane domains.
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-31 DOI: 10.1126/sciimmunol.ado2054
Stefano Barbera, Matthijs J A Schuiling, Nathaniel A Sanjaya, Ilkka Pietilä, Tina Sarén, Magnus Essand, Anna Dimberg

Trogocytosis is an exchange of membrane-associated molecules between cells that can either halt or boost immune responses. However, the mechanism that regulates trogocytosis in T cells and its consequences are not yet clear. Here, we demonstrate that T cells can exchange chimeric antigen receptors (CARs) by trogocytosis, thereby arming recipient T cells with the capacity to respond to tumor antigens by up-regulating proteins associated with a cytotoxic response and killing of target cells. We demonstrate that although trogocytosis is dependent on cell-cell contact, the exchange of a specific cell membrane protein does not require a cognate binding partner on the surface of recipient cells. Instead, the probability that a protein is exchanged by trogocytosis is determined by its transmembrane domain. This finding opens new avenues for modulating this process in CAR-T cells.

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引用次数: 0
Trogocytosis of chimeric antigen receptors between T cells is regulated by their transmembrane domains T 细胞间嵌合抗原受体的逆行吞噬作用受其跨膜结构域的调控
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-31
Stefano Barbera, Matthijs J. A. Schuiling, Nathaniel A. Sanjaya, Ilkka Pietilä, Tina Sarén, Magnus Essand, Anna Dimberg
Trogocytosis is an exchange of membrane-associated molecules between cells that can either halt or boost immune responses. However, the mechanism that regulates trogocytosis in T cells and its consequences are not yet clear. Here, we demonstrate that T cells can exchange chimeric antigen receptors (CARs) by trogocytosis, thereby arming recipient T cells with the capacity to respond to tumor antigens by up-regulating proteins associated with a cytotoxic response and killing of target cells. We demonstrate that although trogocytosis is dependent on cell-cell contact, the exchange of a specific cell membrane protein does not require a cognate binding partner on the surface of recipient cells. Instead, the probability that a protein is exchanged by trogocytosis is determined by its transmembrane domain. This finding opens new avenues for modulating this process in CAR-T cells.
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引用次数: 0
Stem-like memory and precursors of exhausted T cells share a common progenitor defined by ID3 expression.
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-31 DOI: 10.1126/sciimmunol.adn1945
Catarina Gago da Graça, Amania A Sheikh, Dane M Newman, Lifen Wen, Sining Li, Jian Shen, Yuqi Zhang, Sarah S Gabriel, David Chisanga, Justine Seow, Annika Poch, Lisa Rausch, Minh-Hanh T Nguyen, Jayendra Singh, Chun-Hsi Su, Leonie A Cluse, Carlson Tsui, Thomas N Burn, Simone L Park, Bianca Von Scheidt, Laura K Mackay, Ajithkumar Vasanthakumar, David Bending, Wei Shi, Weiguo Cui, Jan Schröder, Ricky W Johnstone, Axel Kallies, Daniel T Utzschneider

Stem-like T cells are attractive immunotherapeutic targets in patients with cancer given their ability to proliferate and differentiate into effector progeny. Thus, identifying T cells with enhanced stemness and understanding their developmental requirements are of broad clinical and therapeutic interest. Here, we demonstrate that during acute infection, the transcriptional regulator inhibitor of DNA binding 3 (ID3) identifies stem-like T cells that are uniquely adapted to generate precursors of exhausted T (Tpex) cells in response to chronic infection or cancer. Expression of ID3 itself enables Tpex cells to sustain T cell responses in chronic infection or cancer, whereas loss of ID3 results in impaired maintenance of CD8 T cell immunity. Furthermore, we demonstrate that interleukin-1 (IL-1) family members, including IL-36β and IL-18, promote the generation of ID3+ T cells that mediate superior tumor control. Overall, we identify ID3 as a common denominator of stem-like T cells in both acute and chronic infections that is specifically required to sustain T cell responses to chronic stimulation.

干样T细胞具有增殖和分化为效应原的能力,是癌症患者极具吸引力的免疫治疗目标。因此,识别干性增强的T细胞并了解它们的发育要求具有广泛的临床和治疗意义。在这里,我们证明了在急性感染期间,DNA结合抑制因子3(ID3)能识别干样T细胞,这些细胞具有独特的适应能力,能在应对慢性感染或癌症时生成衰竭T(Tpex)细胞的前体。ID3本身的表达能使Tpex细胞在慢性感染或癌症中维持T细胞反应,而ID3的缺失会导致CD8 T细胞免疫力的维持受损。此外,我们还证明了白细胞介素-1(IL-1)家族成员,包括 IL-36β 和 IL-18,能促进 ID3+ T 细胞的生成,从而介导卓越的肿瘤控制。总之,我们发现 ID3 是急性和慢性感染中干细胞样 T 细胞的共同特征,它是维持 T 细胞对慢性刺激反应的特殊需要。
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引用次数: 0
The meninges host a distinct compartment of regulatory T cells that preserves brain homeostasis
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-28 DOI: 10.1126/sciimmunol.adu2910
Miguel Marin-Rodero, Elisa Cintado, Alec J. Walker, Teshika Jayewickreme, Felipe A. Pinho-Ribeiro, Quentin Richardson, Ruaidhrí Jackson, Isaac M. Chiu, Christophe Benoist, Beth Stevens, José Luís Trejo, Diane Mathis
Our understanding of the meningeal immune system has recently burgeoned, particularly regarding how innate and adaptive effector cells are mobilized to meet brain challenges. However, information on how meningeal immunocytes guard brain homeostasis in healthy individuals remains limited. This study highlights the heterogeneous, polyfunctional regulatory T cell (Treg) compartment in the meninges. A Treg subtype specialized in controlling interferon-γ (IFN-γ) responses and another dedicated to regulating follicular B cell responses were substantial components of this compartment. Accordingly, punctual Treg ablation rapidly unleashed IFN-γ production by meningeal lymphocytes, unlocked access to the brain parenchyma, and altered meningeal B cell profiles. Distally, the hippocampus assumed a reactive state, with morphological and transcriptional changes in multiple glial cell types. Within the dentate gyrus, neural stem cells underwent more death and were blocked from further differentiation, which coincided with impairments in short-term spatial-reference memory. Thus, meningeal Tregs are a multifaceted safeguard of brain homeostasis at steady state.
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引用次数: 0
Coordinated immune networks in leukemia bone marrow microenvironments distinguish response to cellular therapy
IF 17.6 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-24 DOI: 10.1126/sciimmunol.adr0782
Katie Maurer, Cameron Y. Park, Shouvik Mani, Mehdi Borji, Florian Raths, Kenneth H. Gouin III, Livius Penter, Yinuo Jin, Jia Yi Zhang, Crystal Shin, James R. Brenner, Jackson Southard, Sachi Krishna, Wesley Lu, Haoxiang Lyu, Domenic Abbondanza, Chanell Mangum, Lars Rønn Olsen, Michael J. Lawson, Martin Fabani, Donna S. Neuberg, Pavan Bachireddy, Eli N. Glezer, Samouil L. Farhi, Shuqiang Li, Kenneth J. Livak, Jerome Ritz, Robert J. Soiffer, Catherine J. Wu, Elham Azizi
Understanding how intratumoral immune populations coordinate antitumor responses after therapy can guide treatment prioritization. We systematically analyzed an established immunotherapy, donor lymphocyte infusion (DLI), by assessing 348,905 single-cell transcriptomes from 74 longitudinal bone marrow samples of 25 patients with relapsed leukemia; a subset was evaluated by both protein- and transcriptome-based spatial analysis. In acute myeloid leukemia (AML) DLI responders, we identified clonally expanded ZNF683+ CD8+ cytotoxic T lymphocytes with in vitro specificity for patient-matched AML. These cells originated primarily from the DLI product and appeared to coordinate antitumor immune responses through interaction with diverse immune cell types within the marrow microenvironment. Nonresponders lacked this cross-talk and had cytotoxic T lymphocytes with elevated TIGIT expression. Our study identifies recipient bone marrow microenvironment differences as a determinant of an effective antileukemia response and opens opportunities to modulate cellular therapy.
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引用次数: 0
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Science Immunology
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