Evidence map›Paper›PMID 42812231›Full record

ArticleFrontiers in oncology2026

Characterization of JAK2V617F and the JAK2 46/1 germline haplotype in myeloproliferative neoplasms in a Saudi Arabian cohort: a case-based analysis.

Nouf Mutrib, Sana Alqarni, Abdul Ali Peer-Zada, Manar Samman, Sabiha Fatima, Sadia Arjumand, Hala Aldahshan, Khalid K Alharbi, May M AlRashed

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Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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9 authors.

Nouf Mutrib *Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Sana Alqarni *Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Abdul Ali Peer-ZadaMolecular Genetics, Pathology & Clinic al Laboratory Medicine Administration, King Fahad Medical City, Riyadh, Saudi Arabia.
Manar SammanLab Operation, Health Support Services Centre, Ministry of Health, Riyadh, Saudi Arabia.
Sabiha FatimaDepartment of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Sadia ArjumandDepartment of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Hala AldahshanDepartment of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Khalid K AlharbiDepartment of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
May M AlRashedDepartment of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: JAK2V617F is an important mutation associated with myeloproliferative neoplasms (MPNs). The germline JAK2 46/1 haplotype is an established low-penetrance predisposition factor for MPNs across multiple ethnicities. This study aimed to characterize JAK2V617F mutation prevalence and JAK2 46/1 haplotype distribution in a Saudi Arabian MPN cohort. Methods: A retrospective cohort study was conducted at King Fahad Medical City, Riyadh, Saudi Arabia. A total of 130 participants (98 MPN patients and 32 non-MPN controls) were enrolled between January 2018 and December 2019. JAK2V617F mutation status was determined by allele-specific TaqMan qPCR. SNPs rs12343867 and rs10974900 were genotyped using validated TaqMan SNP assays to define haplotype carrier status. Results: JAK2V617F was detected in 13.1% of patients (n=17; 9 females, 8 males), with no statistically significant sex-based difference in mutation frequency. At rs12343867, the aggregate 46/1 haplotype carrier frequency was 80.7% (homozygous TT: 51.5%; heterozygous CT: 29.2%). By MPN subtype, TT homozygosity was most prevalent in ET (56.3%). By MPN subtype, the CC genotype predominated in ET (57.8%), PV (50.0%), PMF (75.0%), and non-MPN controls (54.8%). Conclusions: This is the first study to simultaneously characterize JAK2V617F and the germline JAK2 46/1 haplotype in a Saudi Arabian MPN cohort. The elevated haplotype carrier frequency supports an inherited predisposition to MPN in this population and positions the JAK2 46/1 haplotype as a candidate supplementary biomarker for risk stratification. Prospective, multi-centre studies incorporating comprehensive driver mutation profiling and population-matched healthy controls are warranted.

Indexed as

JAK2 46/1 haplotypeJAK2V617Fmyeloproliferative neoplasmsrs12343867Saudi Arabia

Identifiers

PMID42812231
PMCPMC13619491

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