Role of Leptin in Inflammation and Vice Versa
Open accessAbstract
Inflammation is an essential immune response for the maintenance of tissue homeostasis. In a general sense, acute and chronic inflammation are different types of adaptive response that are called into action when other homeostatic mechanisms are insufficient. Although considerable progress has been made in understanding the cellular and molecular events that are involved in the acute inflammatory response to infection and tissue injury, the causes and mechanisms of systemic chronic inflammation are much less known. The pathogenic capacity of this type of inflammation is puzzling and represents a common link of the multifactorial diseases, such as cardiovascular diseases and type 2 diabetes. In recent years, interest has been raised by the discovery of novel mediators of inflammation, such as microRNAs and adipokines, with different effects on target tissues. In the present review, we discuss the data emerged from research of leptin in obesity as an inflammatory mediator sustaining multifactorial diseases and how this knowledge could be instrumental in the design of leptin-based manipulation strategies to help restoration of abnormal immune responses. On the other direction, chronic inflammation, either from autoimmune or infectious diseases, or impaired microbiota (dysbiosis) may impair the leptin response inducing resistance to the weight control, and therefore it may be a cause of obesity. Thus, we are reviewing the published data regarding the role of leptin in inflammation, and the other way around, the role of inflammation on the development of leptin resistance and obesity
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In epidemiological studies in humans, inflammatory biomarkers are positively associated with atherosclerotic cardiovascular disease.
“In epidemiological studies in humans, these inflammatory biomarkers are positively associated with atherosclerotic cardiovascular disease.”
From The dual glucose‐dependent insulinotropic polypeptide and glucagon‐like peptide‐1 receptor agonist tirzepatide improves cardiovascular risk biomarkers in patients with type 2 diabetes: A p <scp>ost hoc</scp> analysis (2022) · cites this paper as [13]
Section 3.2.1 (page unavailable) says inflammatory biomarkers are elevated in people with obesity or insulin resistance and that these mediators might promote atherosclerotic cardiovascular disease. It does not report the claimed positive association between biomarker levels and disease in human epidemiological studies. (LLM, conf=0.82)
Experimental — accuracy not yet measuredCirculating leptin levels correlate with the degree of obesity.
“Leptin is a pro‐inflammatory adipokine mainly secreted from the adipose tissue, 13 and circulating leptin levels correlate with the degree of obesity.”
Leptin is a pro-inflammatory adipokine mainly secreted from adipose tissue.
“Leptin is a pro‐inflammatory adipokine mainly secreted from the adipose tissue, 13 and circulating leptin levels correlate with the degree of obesity.”
High levels of hsCRP, YKL-40, and ICAM-1 are associated with an increased risk of MACE.
“High levels of hsCRP, YKL‐40, and ICAM‐1 are associated with an increased risk of MACE.”
From The dual glucose‐dependent insulinotropic polypeptide and glucagon‐like peptide‐1 receptor agonist tirzepatide improves cardiovascular risk biomarkers in patients with type 2 diabetes: A p <scp>ost hoc</scp> analysis (2022) · cites this paper as [13]
Section 3.2.1 discusses elevated CRP in people with obesity and insulin resistance, while Section 3.2.2 discusses leptin and atherosclerosis. Searches for hsCRP, YKL-40, ICAM-1, and major adverse cardiovascular events found no passage linking the three markers to increased MACE risk. (LLM, conf=0.75)
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- Authors
- Pérez-Pérez, A., Sánchez-Jiménez, F., Vilariño-García, T., & Sánchez-Margalet, V.
- Affiliations
- Department of Medical Biochemistry and Molecular Biology, and Immunology, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
- Hospital Universitario Virgen Macarena (ES)
- Venue
- International Journal of Molecular Sciences
- Publisher
- MDPI AG
- Published
- 2020-08-16
- Volume
- 21
- Issue
- 16
- Pages
- 5887
- ISSN
- 1422-0067 (ISSN-L)
- PMC
- PMC7460646
- OpenAlex
- W3049167578
- Cited by
- 330
- References
- 21
- Citations by year
- 2026: 51 · 2025: 76 · 2024: 67 · 2023: 54 · 2022: 43 · 2021: 33 · 2020: 6
- FWCI
- 4.96
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- International Journal of Molecular Sciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, cc-by-nc-nd)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Deposito de Investigacion Universidad de Sevilla (University of Seville) (submittedVersion, cc-by-nc-nd)
- Funders
- Instituto de Salud Carlos III (PI19/01741)
- Topics
- Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
- Keywords
- leptin, inflammation, chronic inflammation, obesity, leptin resistance, adipokines, dysbiosis, microbiota, type 2 diabetes, cardiovascular disease, autoimmune disease, weight management
- MeSH terms
- Animals, Autoimmune Diseases, Communicable Diseases, Humans, Immunity, Innate, Obesity, Leptin, Adaptive Immunity
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