A core function of our memory system is the ability to link appropriate events. In this issue of Neuron, Chowdhury et al. (2022) pinpoint a specific neuromodulatory circuit for contextual memory linking, but not formation, in the hippocampus.
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| http://dx.doi.org/10.1016/j.neuron.2022.09.014 | DOI Listing |
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Elucidating the role of FBXW4 in osteoporosis: integrating bioinformatics and machine learning for advanced insight.
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Background: Osteoporosis (OP), often termed the "silent epidemic," poses a substantial public health burden. Emerging insights into the molecular functions of FBXW4 have spurred interest in its potential roles across various diseases.
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Arginase-1-specific T cells target and modulate tumor-associated macrophages.
J Immunother Cancer
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National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Herlev Hospital, Herlev, Denmark
Background: Arginase-1 (Arg1) expressing tumor-associated macrophages (TAMs) may create an immune-suppressive tumor microenvironment (TME), which is a significant challenge for cancer immunotherapy. We previously reported the existence of Arg1-specific memory T cells among peripheral blood mononuclear cells (PBMCs) and described that Arg-1-based immune modulatory vaccines (IMVs) control tumor growth and alter the M1/M2 macrophage ratio in murine models of cancer. In the present study, we investigated how Arg1-specific T cells can directly target TAMs and influence their polarization.
View Article and Find Full Text PDFPermanent tactile sensory loss reduces neuronal activity in the amygdala and ventral hippocampus and alters anxiety-like behaviors.
Behav Brain Res
January 2025
Laboratorio de Neurociencias, Facultad de Psicología, Universidad de Colima, Colima, Mexico 28040. Electronic address:
Tactile information from the whiskers (vibrissae) travels through the somatosensory cortex to the entorhinal cortex and the hippocampus, influencing development and psychological well-being. The lack of whiskers affects cognitive functions, spatial memory, neuronal firing, spatial mapping, and neurogenesis in the dorsal hippocampus. Recent studies underline the importance of tactile experiences in emotional health, noting that while tactile stimuli modulate the dorsal hippocampus, the effects of tactile deprivation on anxiety-like behaviors and neural activity in regions like the ventral hippocampus and amygdala are less understood.
View Article and Find Full Text PDFCognitive Deficits in Anti-LGI1 Encephalitis Are Linked to Immunotherapy-Resistant White Matter Network Changes.
Neurol Neuroimmunol Neuroinflamm
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Department of Neurology and Experimental Neurology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin.
Background And Objectives: Cognitive deficits represent a major long-term complication of anti-leucine-rich, glioma-inactivated 1 encephalitis (LGI1-E). Although severely affecting patient outcomes, the structural brain changes underlying these deficits remain poorly understood. In this study, we hypothesized a link between white matter (WM) networks and cognitive outcomes in LGI1-E.
View Article and Find Full Text PDFOrgan-specific microenvironments drive divergent T cell evolution in acute graft-versus-host disease.
Sci Transl Med
January 2025
Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA.
Tissue-specific T cell immune responses play a critical role in maintaining organ health but can also drive immune pathology during both autoimmunity and alloimmunity. The mechanisms controlling intratissue T cell programming remain unclear. Here, we leveraged a nonhuman primate model of acute graft-versus-host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation to probe the biological underpinnings of tissue-specific alloimmune disease using a comprehensive systems immunology approach including multiparameter flow cytometry, population-based transcriptional profiling, and multiplexed single-cell RNA sequencing and TCR sequencing.
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