Genome-wide association studies with experimental validation identify a protective role for B lymphocytes against chronic post-surgical pain

Marc Parisien, Roel R I van Reij, Samar Khoury, Eda Koseli, Mohamad Karaky, Jaqueline R Silva, Golnar Taheri, Nynke J van den Hoogen, Garrie Peng, Massimo Allegri, Manuela De Gregori, Jacques E Chelly, Barbara A Rakel, Eske K Aasvang, Henrik Kehlet, Wolfgang F F A Buhre, Camron D Bryant, M Imad Damaj, Irah L King, Nader GhasemlouJeffrey S Mogil, Elbert A J Joosten, Luda Diatchenko*

*Corresponding author af dette arbejde

Abstract

BACKGROUND: Chronic post-surgical pain (CPSP) significantly impacts patients' recovery and quality of life. Although environmental risk factors are well-established, genetic risk remains less understood.

METHODS: A meta-analysis of genome-wide association studies followed by partitioned heritability was performed on 1350 individuals across five surgery types: hysterectomy, mastectomy, abdominal, hernia, and knee. In subsequent animal studies, withdrawal thresholds to evoked mechanical stimulation were measured in Rag1 null mutant and wild-type mice after plantar incision and laparotomy. Cell sorting by flow cytometry tracked recruitment of immune cell types.

RESULTS: We discovered 77 genome-wide significant single-nucleotide polymorphism (SNP) hits, distributed among 24 loci and 244 genes. Meta-analysis of all cohorts estimated a SNP-based narrow-sense heritability for CPSP at ∼39%, indicating a substantial genetic contribution. Partitioned heritability analysis across a wide variety of tissues revealed enrichment of heritability in immune system-related genes, particularly those associated with B and T cells. Rag1 null mutant mice lacking both T and B cells exhibited exacerbated and prolonged allodynia up to 42 days after surgery, which was rescued by B-cell transfer. Recruitment patterns of B cells but not T cells differed significantly during the first 7 days after injury in the footpad, lymph nodes, and dorsal root ganglia.

CONCLUSIONS: These findings suggest a key protective role for the adaptive immune system in the development of chronic post-surgical pain.

OriginalsprogEngelsk
TidsskriftBritish Journal of Anaesthesia
Vol/bind133
Udgave nummer2
Sider (fra-til)360-370
Antal sider11
ISSN0007-0912
DOI
StatusUdgivet - 2024

Fingeraftryk

Dyk ned i forskningsemnerne om 'Genome-wide association studies with experimental validation identify a protective role for B lymphocytes against chronic post-surgical pain'. Sammen danner de et unikt fingeraftryk.

Citationsformater