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Fos regulates age-dependent neuroinflammation in a VAPP58S model of amyotrophic lateral sclerosis.

Overview

  1. Department of Biology, Indian Institute of Science Education and Research, Pune 411008, India
Journal: Disease models & mechanisms, volume 19, issue 7, article dmm052810
Dates: received 20 December 2025; accepted 27 May 2026; published online 24 July 2026; in print July 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.1242/dmm.052810 · PMID 42237814 · PMCID PMC13446562 · OpenAlex W7163552775
Open access: gold, a free copy (OpenAlex)
Status: data only
Categories: human (organism), drosophila (organism), other condition (population), cellular / molecular (subfield)
Methods: Statistics, fMRI & imaging
Keywords: Amyotrophic lateral sclerosis, Vesicle-associated membrane protein-associated protein B, CRISPR/Cas9, Neuroinflammation, Kayak
MeSH: Aging*, Amyotrophic Lateral Sclerosis*, Drosophila melanogaster*, Drosophila Proteins*, Neuroinflammatory Diseases*, Proto-Oncogene Proteins c-fos*, Animals, Brain, Disease Models, Animal, Humans, Inflammation, Motor Activity, Neuroglia, Signal Transduction (* major topic)
Topic: Amyotrophic Lateral Sclerosis Research (Neurology, Medicine), according to OpenAlex
Citations: not cited yet (Europe PMC); 112 references in the paper
Research resources: RRID:SCR_002798

Abstract

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by progressive loss of motor function. Here, we developed a Drosophila model of ALS8 (VAPBP58S) using CRISPR/Cas9 genome editing. VAPB is an endoplasmic reticulum-based adapter protein associated with and regulating intracellular membrane:membrane contact sites. VAPBP58S flies showed progressive age-dependent motor deficits and a shortened lifespan, paralleling features of the human disease. VAPBP58S brains exhibited age-dependent neuroinflammation, as measured by whole-transcriptome quantitative mRNA sequencing, suggesting a broad, low-grade enhancement of signalling across multiple immune pathways (Toll, Imd, Jak-STAT and c-Jun). Our results indicated that glial cells in the brain are the site of brain inflammation and identified the Drosophila orthologue of Fos (Kayak) as a key modulator of age-dependent inflammation. In accordance, we found that overexpression of wild-type kayak or its dominant-active variant kayakK357R in glia reduced inflammation and, concomitantly, improved motor function. In contrast, knockdown of glial kayak accelerated age-dependent deterioration of motor function and enhanced neuroinflammation. Our study underscores the roles of glial-modulated brain inflammation in dictating ALS8 progression and identifies kayak as a central negative regulator of neuroinflammation in disease.

Reproduced under the paper's license (CC BY), from the paper cited above.

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Version 1, 27 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 7 authors, 5 keywords, 14 MeSH terms, 4 funders, 112 references, 1 RRID.

Cite

This paper

Kulkarni, N. P., Thulasidharan, A., Soory, A., Goel, P., Sarkar, S., Kelkar, V., & Ratnaparkhi, G. S. (2026). Fos regulates age-dependent neuroinflammation in a VAPP58S model of amyotrophic lateral sclerosis. Disease models & mechanisms, 19(7), dmm052810. https://doi.org/10.1242/dmm.052810

BibTeX

@article{kulkarni2026fos,
author = {Kulkarni, Namrata Pramod and Thulasidharan, Aparna and Soory, Amarendranath and Goel, Pulkit and Sarkar, Sanhita and Kelkar, Vidyadheesh and Ratnaparkhi, Girish S.},
title = {{Fos regulates age-dependent neuroinflammation in a VAPP58S model of amyotrophic lateral sclerosis}},
journal = {Disease models \& mechanisms},
year = {2026},
month = jul,
volume = {19},
number = {7},
pages = {dmm052810},
publisher = {Company of Biologists},
issn = {1754-8403},
doi = {10.1242/dmm.052810},
url = {https://doi.org/10.1242/dmm.052810},
pmid = {42237814},
pmcid = {PMC13446562}
}

RIS

TY - JOUR
AU - Kulkarni, Namrata Pramod
AU - Thulasidharan, Aparna
AU - Soory, Amarendranath
AU - Goel, Pulkit
AU - Sarkar, Sanhita
AU - Kelkar, Vidyadheesh
AU - Ratnaparkhi, Girish S.
TI - Fos regulates age-dependent neuroinflammation in a VAPP58S model of amyotrophic lateral sclerosis
T2 - Disease models & mechanisms
J2 - Dis Model Mech
PY - 2026
DA - 2026/07/24
VL - 19
IS - 7
SP - dmm052810
SN - 1754-8403
PB - Company of Biologists
DO - 10.1242/dmm.052810
UR - https://doi.org/10.1242/dmm.052810
LA - en
ER -

CSL-JSON

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"given": "Namrata Pramod"
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