PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement

Platelet factor 4 (PF4), a platelet-derived chemokine found in the blood, has been identified as a critical factor in modulating the rejuvenation of the aged brain. Increasing evidence suggests that PF4 secretion is a prerequisite for the cognitive benefits associated with young blood transfusion,...

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Main Authors: Li Li, Chunming Xie
Format: Article
Language:English
Published: Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina 2025-04-01
Series:Biomolecules & Biomedicine
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Online Access:http://www.bjbms.org/ojs/index.php/bjbms/article/view/11960
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author Li Li
Chunming Xie
author_facet Li Li
Chunming Xie
author_sort Li Li
collection DOAJ
description Platelet factor 4 (PF4), a platelet-derived chemokine found in the blood, has been identified as a critical factor in modulating the rejuvenation of the aged brain. Increasing evidence suggests that PF4 secretion is a prerequisite for the cognitive benefits associated with young blood transfusion, the longevity factor klotho, and exercise. Systemic administration of exogenous PF4 has been shown to reduce circulating pro-aging immune factors and restore peripheral immune function in the aged brain by mitigating age-related hippocampal neuroinflammation, promoting molecular changes in synaptic plasticity, and improving cognitive function in aged mice. Clinically, reduced serum PF4 levels have been significantly associated with cognitive decline and core pathological biomarkers in Alzheimer’s disease. Mechanistically, the chemokine receptor CXCR3 partially mediates the cellular, molecular, and cognitive benefits of systemic PF4 administration in the aged brain. However, several critical questions remain, including the potential role of PF4 in blood-brain communication, its interaction with neurotransmitters and neuropharmacological processes, and how these findings might be translated into clinical practice. Further detailed studies are needed to validate and expand upon these insights for therapeutic application.
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spelling doaj-art-e16a1161155c4c80b3fb1096e9f778ec2025-08-20T03:17:47ZengAssociation of Basic Medical Sciences of Federation of Bosnia and HerzegovinaBiomolecules & Biomedicine2831-08962831-090X2025-04-0110.17305/bb.2025.11960PF4 in rejuvenation therapy: neuroprotection and cognitive enhancementLi Li0Chunming Xie1Center of Health Management, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, ChinaDepartment of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China Platelet factor 4 (PF4), a platelet-derived chemokine found in the blood, has been identified as a critical factor in modulating the rejuvenation of the aged brain. Increasing evidence suggests that PF4 secretion is a prerequisite for the cognitive benefits associated with young blood transfusion, the longevity factor klotho, and exercise. Systemic administration of exogenous PF4 has been shown to reduce circulating pro-aging immune factors and restore peripheral immune function in the aged brain by mitigating age-related hippocampal neuroinflammation, promoting molecular changes in synaptic plasticity, and improving cognitive function in aged mice. Clinically, reduced serum PF4 levels have been significantly associated with cognitive decline and core pathological biomarkers in Alzheimer’s disease. Mechanistically, the chemokine receptor CXCR3 partially mediates the cellular, molecular, and cognitive benefits of systemic PF4 administration in the aged brain. However, several critical questions remain, including the potential role of PF4 in blood-brain communication, its interaction with neurotransmitters and neuropharmacological processes, and how these findings might be translated into clinical practice. Further detailed studies are needed to validate and expand upon these insights for therapeutic application. http://www.bjbms.org/ojs/index.php/bjbms/article/view/11960Platelet factor 4PF4anti-agingneuroinflammationcognitive impairmentrejuvenation
spellingShingle Li Li
Chunming Xie
PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement
Biomolecules & Biomedicine
Platelet factor 4
PF4
anti-aging
neuroinflammation
cognitive impairment
rejuvenation
title PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement
title_full PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement
title_fullStr PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement
title_full_unstemmed PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement
title_short PF4 in rejuvenation therapy: neuroprotection and cognitive enhancement
title_sort pf4 in rejuvenation therapy neuroprotection and cognitive enhancement
topic Platelet factor 4
PF4
anti-aging
neuroinflammation
cognitive impairment
rejuvenation
url http://www.bjbms.org/ojs/index.php/bjbms/article/view/11960
work_keys_str_mv AT lili pf4inrejuvenationtherapyneuroprotectionandcognitiveenhancement
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