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Related Concept Videos

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Cellular Adaptation II: Hypertrophy01:26

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Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy:...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

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The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
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Updated: Apr 23, 2026

Transverse Aortic Constriction in Mice
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CXCL10 Regulates Pressure Overload-Induced Heart Failure.

Fernando Souza-Neto1, Preston Le2, Mobeen Abdrabbo3

  • 1Lillehei Heart Institute, Department of Medicine, Cardiovascular Division, University of Minnesota, Minneapolis, Minnesota, USA.

JACC. Basic to Translational Science
|April 22, 2026
PubMed
Summary
This summary is machine-generated.

The study reveals C-X-C motif chemokine ligand 10 (CXCL10) significantly contributes to heart failure progression by promoting immune cell recruitment and activation. Targeting CXCL10 may offer a new therapeutic approach for inflammation-driven heart failure.

Keywords:
T cellscardiac dysfunctioncardiac remodelingfibrosishypertrophyinflammationmacrophages

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Area of Science:

  • Immunology
  • Cardiology
  • Molecular Biology

Background:

  • Heart failure involves complex immune responses.
  • C-X-C motif chemokine receptor 3 (CXCR3) activation influences T cell recruitment.
  • The specific role of C-X-C motif chemokine ligand 10 (CXCL10) in heart failure is not well understood.

Purpose of the Study:

  • To investigate the role of CXCL10 in pressure overload-induced cardiac remodeling and heart failure progression.
  • To determine if CXCL10 mediates pathological changes through immune cell recruitment.

Main Methods:

  • Utilized a mouse model of pressure overload (transverse aortic constriction).
  • Assessed cardiac remodeling, hypertrophy, fibrosis, and cardiac dysfunction in wild-type and CXCL10 knockout mice.
  • Employed bone marrow chimeras to investigate CXCL10's origin and function.
  • Analyzed T-cell expansion and activation in draining lymph nodes.

Main Results:

  • Genetic deletion of CXCL10 attenuated early cardiac remodeling and protected against heart failure development.
  • CXCL10 knockout mice showed reduced cardiac hypertrophy, fibrosis, and preserved cardiac function compared to wild-type.
  • CXCL10 deficiency prevented T-cell expansion and activation, particularly CD4+ T cells.
  • CXCL10 derived from recruited macrophages was shown to accelerate pathological cardiac remodeling.

Conclusions:

  • CXCL10 is a key mediator in pressure overload-induced heart failure.
  • CXCL10 promotes cardiac remodeling by recruiting and activating immune cells, notably T cells and macrophages.
  • Targeting CXCL10 presents a potential therapeutic strategy for managing inflammation-driven heart failure.