Evidence map›Paper›PMID 41046099›Full record

ArticleExperimental hematology2025

Mitochondrial retention and autophagy dysregulation drive oxidative stress in sickle cell disease erythrocytes.

Jagadeesh Ramasamy, Prasanth Kumar Punathil Kannan, Sugasini Dhavamani, Savitha Palanimuthu, Robert Molokie, Angela Rivers

Abstract read
In one paragraph

Article in Experimental hematology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Jagadeesh RamasamyDepartment of Pediatrics, University of Illinois at Chicago, Chicago, IL. Electronic address: jagadees@uic.edu.
Prasanth Kumar Punathil KannanDepartment of Pediatrics, University of Illinois at Chicago, Chicago, IL.
Sugasini DhavamaniDepartment of Medicine, University of Illinois at Chicago, Chicago, IL.
Savitha PalanimuthuDepartment of Reproductive Endocrinology and Infertility, Stanford Medicine Children's Health, Sunnyvale, CA.
Robert MolokieDepartment of Medicine, University of Illinois at Chicago, Chicago, IL; Department of Hematology-Oncology, Jesse Brown VA Medical Center, Chicago, IL.
Angela RiversDepartment of Pediatrics, UCSF Benioff Children's Hospital, Oakland, CA.

Funding

The Role of Erythrocyte Mitochondrial Retention in Sickle Cell DiseaseR01HL136622 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RIVERS, ANGELA · 2019 to 2023
$2.0M
Erythrocyte Autophagy Proteins as Potential Non-opioid Novel Targets for Pain in Sickle Cell DiseaseR21AT012304 · NCCIH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAMASAMY, JAGADEESH · 2022 to 2022
$455k
NCCIH NIH HHS R21 AT012304NHLBI NIH HHS R01 HL136622
6 · The paper itself

Abstract

Sickle cell disease (SCD) is an inherited blood disorder caused by a mutation in the β-globin gene, leading to hemoglobin polymerization under low oxygen conditions. This results in sickle-shaped red blood cells (erythrocytes), hemolysis, severe acute and chronic pain, and shortened erythrocyte lifespan. The severity of disease in SCD is linked to the type of hemoglobin mutation, with hemoglobin-SS genotype (HbSS) causing more frequent and severe than hemoglobin-SC genotype (HbSC). We previously identified mitochondrial retention and excessive reactive oxygen species (ROS) production in SCD erythrocytes. Here, we report that patients with SCD with the HbSS exhibit significantly higher erythrocyte mitochondrial retention and ROS levels than those with the HbSC. Mitochondrial retention positively correlates with serum bilirubin and lactate dehydrogenase (LDH), particularly in hydroxyurea-naïve patients. Gene expression analysis using a human autophagy array revealed upregulation of SNCA, GABARAP, GABRAPL2, MAP1LC3B, and CTSB in erythrocyte precursor cells from patients with SCD experiencing severe pain. Immunoblot analyses further confirmed accumulation of gamma-aminobutyric acid type-A receptor-associated protein (GABARAP), GABARAPL1, GABARAPL2, cathepsin-B, and alpha-synuclein in circulating erythrocytes and plasma from patients with SCD compared with controls. Our findings suggest a potential link between dysregulated autophagy proteins and erythrocyte mitochondrial retention in patients with SCD, opening new avenues for therapeutic interventions targeting these proteins to mitigate SCD pathogenesis.

Indexed as

Anemia, Sickle CellAutophagyErythrocytesMitochondriaOxidative StressAdultFemaleHumansMaleReactive Oxygen SpeciesReactive Oxygen Species

Identifiers

PMID41046099
PMCPMC12689251

What Socratic holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.