HIV Alters Gap Junction-Mediated Intercellular Communication in Human Brain Pericytes

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HIV Alters Gap Junction-Mediated Intercellular Communication in Human Brain Pericytes

Despite successful control of viremia by combined antiretroviral therapy, brain infection and its resulting neurocognitive impairment remain a prevalent comorbidity in HIV infected individuals. HIV invades the brain early in the course of infection via penetration through the blood-brain barrier (BBB). While the impact of HIV on BBB astrocytes and endothelial cells is relatively well studied, t...

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High glucose alters connexin 43 expression and gap junction intercellular communication activity in retinal pericytes.

PURPOSE To investigate the role of the gap junction protein, connexin-43 (Cx43) in the maintenance of retinal vascular homeostasis in diabetic retinopathy. METHODS In human retinal pericytes (HRPs) and bovine retinal pericytes (BRPs) grown for 7 days in normal (5 mM) or high (30 mM)-glucose medium, the Cx43 protein level was determined by Western blot analysis. Parallel experiments were perfo...

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Gap junction-mediated intercellular communication in the immune system.

Immune cells are usually considered non-attached blood cells, which would exclude the formation of gap junctions. This is a misconception since many immune cells express connexin 43 (Cx43) and other connexins and are often residing in tissue. The role of gap junctions is largely ignored by immunologists as is the immune system in the field of gap junction research. Here, the current knowledge o...

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Gap junction-mediated intercellular communication in ischemic preconditioning.

Gap junction-mediated communication can modulate cell death in different tissues. In myocardium, gap junction communication is altered during ischemia, which contributes to the development of arrhythmias, but still allows synchronization of the onset of rigor contracture in the progression of injury. During reperfusion, gap junction communication allows cell-to-cell spread of hypercontracture a...

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Regulation of hematopoiesis by gap junction-mediated intercellular communication.

Gap junctions are intercellular channels formed by individual structural units known as connexins (Cx) that allow the intercellular exchange of small molecules between cells. The presence of Cx protein in bone marrow and thymic stromal cells and the demonstration that these cells are functionally coupled have led to the hypothesis that groups of stromal cells in the bone marrow and thymus form ...

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ژورنال

عنوان ژورنال: Frontiers in Molecular Neuroscience

سال: 2017

ISSN: 1662-5099

DOI: 10.3389/fnmol.2017.00410