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Izraelson M, Metsger M, Davydov AN, Shagina IA, Dronina MA, Obraztsova AS, Miskevich DA, Mamedov IZ, Volchkova LN, Nakonechnaya TO, Shugay M, Bolotin DA, Staroverov DB, Sharonov GV, Kondratyuk EY, Zagaynova EV, Lukyanov S, Shams I, Britanova OV, Chudakov DM. Distinct organization of adaptive immunity in the long-lived rodent Spalax galili. Nat Aging 2021; 1:179-189. [PMID: 37118630 DOI: 10.1038/s43587-021-00029-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/08/2021] [Indexed: 04/30/2023]
Abstract
A balanced immune response is a cornerstone of healthy aging. Here, we uncover distinctive features of the long-lived blind mole-rat (Spalax spp.) adaptive immune system, relative to humans and mice. The T-cell repertoire remains diverse throughout the Spalax lifespan, suggesting a paucity of large long-lived clones of effector-memory T cells. Expression of master transcription factors of T-cell differentiation, as well as checkpoint and cytotoxicity genes, remains low as Spalax ages. The thymus shrinks as in mice and humans, while interleukin-7 and interleukin-7 receptor expression remains high, potentially reflecting the sustained homeostasis of naive T cells. With aging, immunoglobulin hypermutation level does not increase and the immunoglobulin-M repertoire remains diverse, suggesting shorter B-cell memory and sustained homeostasis of innate-like B cells. The Spalax adaptive immune system thus appears biased towards sustained functional and receptor diversity over specialized, long-lived effector-memory clones-a unique organizational strategy that potentially underlies this animal's extraordinary longevity and healthy aging.
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Affiliation(s)
- M Izraelson
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M Metsger
- Central European Institute of Technology, Brno, Czech Republic
| | - A N Davydov
- Central European Institute of Technology, Brno, Czech Republic
| | - I A Shagina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M A Dronina
- Institute of Evolution & Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - A S Obraztsova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - D A Miskevich
- Institute of Evolution & Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - I Z Mamedov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
- Central European Institute of Technology, Brno, Czech Republic
| | - L N Volchkova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - T O Nakonechnaya
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M Shugay
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - D A Bolotin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - D B Staroverov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - G V Sharonov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - E Y Kondratyuk
- Institute of Systematics and Ecology of Animals SB RAS, Novosibirsk, Russia
| | - E V Zagaynova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - S Lukyanov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - I Shams
- Institute of Evolution & Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - O V Britanova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.
| | - D M Chudakov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia.
- Pirogov Russian National Research Medical University, Moscow, Russia.
- Central European Institute of Technology, Brno, Czech Republic.
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