biostudies-literaturevon Bernhardi RFondo Nacional de Desarrollo Científico y Tecnológico11378https://www.ebi.ac.uk/biostudies/studies/S-EPMC12692065biostudies-literatureUnknown26(23)Ageing results in an increased microglial activation and neuroinflammation. We are interested in assessing ageing-dependent changes in the amount and fractalkine (CX3CL1) proteoforms participating in neuron-microglia crosstalk that could be involved in microglia activation. We analysed age-dependent changes in CX3CL1, CX3CR1, and TGFβ mRNAs using RT-qPCR and CX3CL1 proteoforms using Western blot, in 3 to 20-month-old WT mice and an inflammatory mouse model (SRA^-/-) treated with 0.5 mg/kg of intraperitoneal LPS, 2 ng of intrathecal TGFβ, or a vehicle. CX3CL1, CX3CR1, and TGFβ were affected by ageing. CX3CL1 mRNA was similar in young and adult mice but decreased by 52% in >20-month-old mice; adult mice showed a 3-fold increase in 70 kDa soluble CX3CL1. CX3CR1 showed a progressive International journal of molecular sciencesAge-Related Changes in Neuron-Microglia Interaction Mediated by Fractalkine Under Inflammatory Conditions.PMC126920651221028Godoy GEugenin Jvon Bernhardi RMetz CCortes FNarea CfalseAge-Related Changes in Neuron-Microglia Interaction Mediated by Fractalkine Under Inflammatory Conditions.Ageing results in an increased microglial activation and neuroinflammation. We are interested in assessing ageing-dependent changes in the amount and fractalkine (CX3CL1) proteoforms participating in neuron-microglia crosstalk that could be involved in microglia activation. We analysed age-dependent changes in CX3CL1, CX3CR1, and TGFβ mRNAs using RT-qPCR and CX3CL1 proteoforms using Western blot, in 3 to 20-month-old WT mice and an inflammatory mouse model (SRA^-/-) treated with 0.5 mg/kg of intraperitoneal LPS, 2 ng of intrathecal TGFβ, or a vehicle. CX3CL1, CX3CR1, and TGFβ were affected by ageing. CX3CL1 mRNA was similar in young and adult mice but decreased by 52% in >20-month-old mice; adult mice showed a 3-fold increase in 70 kDa soluble CX3CL1. CX3CR1 showed a progressive 2025-01-01T00:00:00Z2025 Nov2026-05-26T11:08:45.79Z2026-05-24T03:11:29.993ZS-EPMC126920654137354410.3390/ijms262311378