Neutrophil Dynamics and Their Role in HIV Progression within Malaria Co-Infected Patients


HIV and malaria co-infections remain a significant public health issue in areas where both diseases are prevalent. Neutrophils, traditionally considered as rapid responders in the immune system, show diverse functional roles in HIV-malaria co-infection scenarios. This article explores how neutrophil dynamics influence HIV progression, especially in the immunocompromised state induced by malaria.

Additional reading: Immune Clues to Long-Term HIV Remission

The study examines the functional changes in neutrophils due to co-infection. Neutrophils in HIV-malaria patients exhibit increased migration, phagocytic activity, and release of reactive oxygen species (ROS) and neutrophil extracellular traps (NETs). These responses, while part of the immune defense, can contribute to inflammation and tissue damage, potentially accelerating HIV progression.

Dysregulated cytokine production due to co-infection leads to chronic immune activation. Neutrophils are observed to play a role in these prolonged inflammatory responses, exacerbating tissue injury and impairing immune function. NET release, while effective in pathogen containment, can increase thrombosis risk and lead to immune dysfunction, further complicating the patient’s health.

Targeting neutrophil functions offers potential therapeutic benefits, such as mitigating excessive inflammation without compromising antimicrobial activity. Therapies focusing on controlling NET formation and ROS production, alongside existing antiretroviral treatments, may improve disease management in co-infected individuals.

This study underscores the critical role of neutrophil modulation in HIV progression among malaria patients. Understanding these dynamics can aid in developing targeted treatments to balance immune response while reducing disease complications.

 

Journal article: Obeagu, E.I., Getrude Uzoma Obeagu, Hauwa Ali Buhari and Umar, A.I. (2024). Neutrophil Dynamics: Unveiling Their Role in HIV Progression within Malaria Patients.

Summary by Faith Oluwamakinde

 
 
 
 
 
 
International Union of Immunological SocietiesUniversity of South AfricaInstitute of Infectious Disease and Molecular MedicineElizabeth Glazer Pediatric Aids Foundation