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A Precision Medicine Tool for Measurement and Monitoring of Hemoglobin S in Sickle Cell Disease Patients Receiving Transfusion Therapy

A Precision Medicine Tool for Measurement and Monitoring of Hemoglobin S in Sickle Cell Disease Patients Receiving Transfusion Therapy

Whole Blood Transcriptome Analysis in Children with Sickle Cell Anemia.

Beatrice E Gee^1,2,3, Andrea Pearson⁴, Iris Buchanan-Perry^1,3

¹Department of Pediatrics, Morehouse School of Medicine, Atlanta, GA, United States.

Frontiers in Genetics

|January 31, 2022

Summary

This study reveals novel gene expression patterns in sickle cell anemia (SCA), identifying key regulatory pathways for fetal hemoglobin. These findings may lead to new therapeutic strategies for SCA patients.

Keywords:

RNA-sequencing eQTL analysis pathway analysis sickle cell disease transcriptome

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Published on: February 19, 2017

Area of Science:

Genomics
Molecular Biology
Hematology

Background:

Sickle cell anemia (SCA) is a genetic blood disorder with significant morbidity.
Understanding gene expression in SCA is crucial for developing effective treatments.
Fetal hemoglobin (HbF) induction is a therapeutic goal for SCA.

Purpose of the Study:

To identify differentially expressed genes and regulatory mechanisms in pediatric SCA patients.
To explore novel non-coding RNAs involved in fetal hemoglobin regulation.
To uncover potential therapeutic targets for SCA.

Main Methods:

Whole transcriptome RNA sequencing on pediatric SCA and control subjects.
Data analysis using Partek Genomics Studio with hg19 reference genome.
eQTL analysis and gene expression correlation for regulatory insights.

Main Results:

223 genes and 441 transcripts showed differential expression between SCA and controls.
Hemoglobin-associated and ubiquitin-proteasome pathway genes were enriched.
Increased gamma globin gene (HBG1, HBG2) expression observed in SCA, with novel non-coding RNAs (RYR2, JHDM1D-AS1) implicated in regulation.

Conclusions:

Novel regulatory mechanisms for fetal hemoglobin expression in SCA were identified.
Non-coding RNAs play a significant role in modulating gamma globin expression.
These findings suggest innovative therapeutic avenues for sickle cell anemia.