Photobiomodulation in the infrared spectrum reverses the expansion of circulating natural killer cells and brain microglial activation in Sanfilippo mice.

Autor: Lau AA; Childhood Dementia Research Group, Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Bedford Park, South Australia, Australia., Jin K; Brain and Mind Centre, School of Medical Sciences, Faculty of Medicine & Health, University of Sydney, Camperdown, New South Wales, Australia., Beard H; Childhood Dementia Research Group, Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Bedford Park, South Australia, Australia., Windram T; Childhood Dementia Research Group, Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Bedford Park, South Australia, Australia., Xie K; Brain and Mind Centre, School of Medical Sciences, Faculty of Medicine & Health, University of Sydney, Camperdown, New South Wales, Australia.; Charles Perkins Centre, School of Medical Sciences, Faculty of Medicine & Health, University of Sydney, Sydney, New South Wales, Australia., O'Brien JA; Brain and Mind Centre, School of Medical Sciences, Faculty of Medicine & Health, University of Sydney, Camperdown, New South Wales, Australia., Neumann D; Childhood Dementia Research Group, Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Bedford Park, South Australia, Australia., King BM; Childhood Dementia Research Group, Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Bedford Park, South Australia, Australia., Snel MF; Proteomics, Metabolomics and MS-Imaging Core Facility, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia., Trim PJ; Proteomics, Metabolomics and MS-Imaging Core Facility, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia., Mitrofanis J; Fonds Clinatec, Université Grenoble Alpes, Grenoble, France.; Institute of Ophthalmology, University College London, London, UK., Hemsley KM; Childhood Dementia Research Group, Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Bedford Park, South Australia, Australia., Austin PJ; Brain and Mind Centre, School of Medical Sciences, Faculty of Medicine & Health, University of Sydney, Camperdown, New South Wales, Australia.
Jazyk: angličtina
Zdroj: Journal of neurochemistry [J Neurochem] 2024 Sep; Vol. 168 (9), pp. 2791-2813. Date of Electronic Publication: 2024 Jun 07.
DOI: 10.1111/jnc.16145
Abstrakt: Sanfilippo syndrome results from inherited mutations in genes encoding lysosomal enzymes that catabolise heparan sulfate (HS), leading to early childhood-onset neurodegeneration. This study explores the therapeutic potential of photobiomodulation (PBM), which is neuroprotective and anti-inflammatory in several neurodegenerative diseases; it is also safe and PBM devices are readily available. We investigated the effects of 10-14 days transcranial PBM at 670 nm (2 or 4 J/cm 2 /day) or 904 nm (4 J/cm 2 /day) in young (3 weeks) and older (15 weeks) Sanfilippo or mucopolysaccharidosis type IIIA (MPS IIIA) mice. Although we found no PBM-induced changes in HS accumulation, astrocyte activation, CD206 (an anti-inflammatory marker) and BDNF expression in the brains of Sanfilippo mice, there was a near-normalisation of microglial activation in older MPS IIIA mice by 904 nm PBM, with decreased IBA1 expression and a return of their morphology towards a resting state. Immune cell immunophenotyping of peripheral blood with mass cytometry revealed increased pro-inflammatory signalling through pSTAT1 and p-p38 in NK and T cells in young but not older MPS IIIA mice (5 weeks of age), and expansion of NK, B and CD8 + T cells in older affected mice (17 weeks of age), highlighting the importance of innate and adaptive lymphocytes in Sanfilippo syndrome. Notably, 670 and 904 nm PBM both reversed the Sanfilippo-induced increase in pSTAT1 and p-p38 expression in multiple leukocyte populations in young mice, while 904 nm reversed the increase in NK cells in older mice. In conclusion, this is the first study to demonstrate the beneficial effects of PBM in Sanfilippo mice. The distinct reduction in microglial activation and NK cell pro-inflammatory signalling and number suggests PBM may alleviate neuroinflammation and lymphocyte activation, encouraging further investigation of PBM as a standalone, or complementary therapy in Sanfilippo syndrome.
(© 2024 The Author(s). Journal of Neurochemistry published by John Wiley & Sons Ltd on behalf of International Society for Neurochemistry.)
Databáze: MEDLINE
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