The single-cell transcriptomic atlas iPain identifies senescence of nociceptors as a therapeutical target for chronic pain treatment

Prach Techameena, Xiaona Feng, Kaiwen Zhang and Saida Hadjab ()
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Prach Techameena: Karolinska Institutet
Xiaona Feng: Karolinska Institutet
Kaiwen Zhang: Karolinska Institutet
Saida Hadjab: Karolinska Institutet

Nature Communications, 2024, vol. 15, issue 1, 1-15

Abstract: Abstract Chronic pain remains a significant medical challenge with complex underlying mechanisms, and an urgent need for new treatments. Our research built and utilized the iPain single-cell atlas to study chronic pain progression in dorsal root and trigeminal ganglia. We discovered that senescence of a small subset of pain-sensing neurons may be a driver of chronic pain. This mechanism was observed in animal models after nerve injury and in human patients diagnosed with chronic pain or diabetic painful neuropathy. Notably, treatment with senolytics, drugs that remove senescent cells, reversed pain symptoms in mice post-injury. These findings highlight the role of cellular senescence in chronic pain development, demonstrate the therapeutic potential of senolytic treatments, and underscore the value of the iPain atlas for future pain research.

Date: 2024
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DOI: 10.1038/s41467-024-52052-8

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