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Spatially resolved whole-transcriptomic and proteomic profiling of lung cancer and its immune-microenvironment according to PD-L1 expression

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Cancer Immunol Res. 2024 Sep 5. doi: 10.1158/2326-6066.CIR-24-0071. Online ahead of print. ABSTRACT The expression of PD-L1 on tumor cells (TCs) is used as an immunotherapy biomarker in lung cancer, but heterogeneous intratumoral expression is often observed. Using a Digital Spatial Profiling, we performed proteomic and whole-transcriptomic analyses of TCs and immune cells (ICs) in … Read more

Integrins α5β1 and αvβ3 Differentially Participate in the Recruitment and Reprogramming of Tumor-associated Macrophages in the In Vitro and In Vivo Models of Breast Tumor

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J Immunol. 2024 Sep 27:ji2400180. doi: 10.4049/jimmunol.2400180. Online ahead of print. ABSTRACT Tumor-associated macrophages (TAMs) drive the protumorigenic responses and facilitate tumor progression via matrix remodeling, angiogenesis, and immunosuppression by interacting with extracellular matrix proteins via integrins. However, the expression dynamics of integrin and its correlation with TAM functional programming in the tumors remain unexplored. … Read more

Developmental Vitamin D Deficiency and the Vitamin D Receptor Control Hematopoiesis

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J Immunol. 2024 Sep 25:ji2400292. doi: 10.4049/jimmunol.2400292. Online ahead of print. ABSTRACT Vitamin D status, the vitamin D receptor (VDR), and the ability to produce active vitamin D [1,25(OH)2D, regulated by Cyp27b1] regulate fetal and adult hematopoiesis. Transgenic reporter mice that express the tdTomato RFP as an indication of Vdr expression were used to identify … Read more

The G Protein-Coupled Receptor GPR56 Is an Inhibitory Checkpoint for NK Cell Migration

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J Immunol. 2024 Sep 25:ji2400228. doi: 10.4049/jimmunol.2400228. Online ahead of print. ABSTRACT G protein-coupled receptors (GPCRs) represent the largest family of surface receptors and are responsible for key physiological functions, including cell growth, neurotransmission, hormone release, and cell migration. The GPCR 56 (GPR56), encoded by ADGRG1, is an adhesion GPCR found on diverse cell types, … Read more

Intravenous Bacillus Calmette-Guérin (BCG) Induces a More Potent Airway and Lung Immune Response than Intradermal BCG in Simian Immunodeficiency Virus-infected Macaques

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J Immunol. 2024 Sep 23:ji2400417. doi: 10.4049/jimmunol.2400417. Online ahead of print. ABSTRACT Tuberculosis (TB), caused by Mycobacterium tuberculosis, is one of the leading causes of death due to an infectious agent. Coinfection with HIV exacerbates M. tuberculosis infection outcomes in people living with HIV. Bacillus Calmette-Guérin (BCG), the only approved TB vaccine, is effective in … Read more

MARCH8 Mediates K27-Linked Polyubiquitination of IL-7 Receptor α to Negatively Regulate IL-7-Triggered T Cell Homeostasis

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J Immunol. 2024 Sep 23:ji2400253. doi: 10.4049/jimmunol.2400253. Online ahead of print. ABSTRACT IL-7 is a cytokine produced by stromal cells, which binds to IL-7Rα and plays an important role for homeostasis of T lymphocytes. Excessive activities of IL-7-triggered signaling pathways causes autoimmune diseases. How IL-7-triggered signaling and immune effects are regulated is not fully understood. … Read more

Type I IFN Induces TCR-dependent and -independent Antimicrobial Responses in γδ Intraepithelial Lymphocytes

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J Immunol. 2024 Sep 23:ji2400138. doi: 10.4049/jimmunol.2400138. Online ahead of print. ABSTRACT Intraepithelial lymphocytes (IELs) expressing the TCRγδ survey the intestinal epithelium to limit the invasion of microbial pathogens. The production of type I IFN is a central component of an antiviral immune response, yet how these proinflammatory cytokines contribute to γδ IEL effector function … Read more

Circulating Immune Cells from Early- and Late-onset Pre-eclampsia Displays Distinct Profiles with Differential Impact on Endothelial Activation

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J Immunol. 2024 Sep 20:ji2400196. doi: 10.4049/jimmunol.2400196. Online ahead of print. ABSTRACT Pre-eclampsia (PE) affects 5-8% of pregnancies and has detrimental effects on maternal-fetal health. PE is characterized by de novo hypertension after 20 wk of gestation and end-organ damage. Systemic inflammatory imbalance has been associated with PE, but its contribution to the pathology is … Read more

IL-1β Induces Human Endothelial Surface Expression of IL-15 by Relieving let-7c-3p Suppression of Protein Translation

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J Immunol. 2024 Sep 20:ji2400331. doi: 10.4049/jimmunol.2400331. Online ahead of print. ABSTRACT Expression of IL-15 on the surface of human graft endothelial cells (ECs) bound to the IL-15Rα subunit can increase the activation of CTLs, potentiating allograft rejection. Our previous work showed that surface expression of this protein complex could be induced by alloantibody-mediated complement … Read more

Rapamycin Prevents Expansion of Costimulation Blockade-resistant CD8+ Alloreactive Memory Cells following Depletional Induction in Renal Transplant Recipients

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J Immunol. 2024 Sep 20:ji2400146. doi: 10.4049/jimmunol.2400146. Online ahead of print. ABSTRACT Alemtuzumab induction with belatacept/rapamycin-based maintenance immunotherapy (ABR) prevents kidney allograft rejection and specifically limits early costimulation blockade-resistant rejection (CoBRR). To evaluate the mechanisms by which this regimen alters CoBRR, we characterized the phenotype and functional response of preexisting memory cells to allogeneic endothelial … Read more

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