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Jiménez-Cortegana C, López-Enríquez S, Alba G, Santa-María C, Martín-Núñez GM, Moreno-Ruiz FJ, Valdés S, García-Serrano S, Rodríguez-Díaz C, Ho-Plágaro A, Fontalba-Romero MI, García-Fuentes E, Garrido-Sánchez L, Sánchez-Margalet V. The Expression of Genes Related to Reverse Cholesterol Transport and Leptin Receptor Pathways in Peripheral Blood Mononuclear Cells Are Decreased in Morbid Obesity and Related to Liver Function. Int J Mol Sci 2024; 25:7549. [PMID: 39062791 PMCID: PMC11276733 DOI: 10.3390/ijms25147549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Obesity is frequently accompanied by non-alcoholic fatty liver disease (NAFLD). These two diseases are associated with altered lipid metabolism, in which reverse cholesterol transport (LXRα/ABCA1/ABCG1) and leptin response (leptin receptor (Ob-Rb)/Sam68) are involved. The two pathways were evaluated in peripheral blood mononuclear cells (PBMCs) from 86 patients with morbid obesity (MO) before and six months after Roux-en-Y gastric bypass (RYGB) and 38 non-obese subjects. In the LXRα pathway, LXRα, ABCA1, and ABCG1 mRNA expressions were decreased in MO compared to non-obese subjects (p < 0.001, respectively). Ob-Rb was decreased (p < 0.001), whereas Sam68 was increased (p < 0.001) in MO. RYGB did not change mRNA gene expressions. In the MO group, the LXRα pathway (LXRα/ABCA1/ABCG1) negatively correlated with obesity-related variables (weight, body mass index, and hip), inflammation (C-reactive protein), and liver function (alanine-aminotransferase, alkaline phosphatase, and fatty liver index), and positively with serum albumin. In the Ob-R pathway, Ob-Rb and Sam68 negatively correlated with alanine-aminotransferase and positively with albumin. The alteration of LXRα and Ob-R pathways may play an important role in NAFLD development in MO. It is possible that MO patients may require more than 6 months following RYBGB to normalize gene expression related to reverse cholesterol transport or leptin responsiveness.
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MESH Headings
- Humans
- Obesity, Morbid/metabolism
- Obesity, Morbid/surgery
- Obesity, Morbid/genetics
- Male
- Leukocytes, Mononuclear/metabolism
- Female
- Receptors, Leptin/genetics
- Receptors, Leptin/metabolism
- Adult
- Cholesterol/metabolism
- Liver X Receptors/metabolism
- Liver X Receptors/genetics
- ATP Binding Cassette Transporter 1/genetics
- ATP Binding Cassette Transporter 1/metabolism
- Middle Aged
- Liver/metabolism
- ATP Binding Cassette Transporter, Subfamily G, Member 1/metabolism
- ATP Binding Cassette Transporter, Subfamily G, Member 1/genetics
- Signal Transduction
- Biological Transport
- Gene Expression Regulation
- Non-alcoholic Fatty Liver Disease/metabolism
- Non-alcoholic Fatty Liver Disease/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
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Grants
- PI09/01016 Instituto de Salud Carlos III
- PE-0098-2019 Consejería de Salud y Familias, Junta de Andalucía, Spain
- PI-2013-575 Consejería de Salud y Familias, Junta de Andalucía, Spain
- P10-CTS6928, P11-CTS8161, P11-CTS8081, CTS-151 Consejería de Universidad, Investigación e Innovación, Junta de Andalucia, Spain
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Affiliation(s)
- Carlos Jiménez-Cortegana
- Department of Medical Biochemistry, Molecular Biology and Immunology, University of Seville Medical School, 41009 Seville, Spain; (C.J.-C.); (S.L.-E.); (G.A.); (V.S.-M.)
| | - Soledad López-Enríquez
- Department of Medical Biochemistry, Molecular Biology and Immunology, University of Seville Medical School, 41009 Seville, Spain; (C.J.-C.); (S.L.-E.); (G.A.); (V.S.-M.)
| | - Gonzalo Alba
- Department of Medical Biochemistry, Molecular Biology and Immunology, University of Seville Medical School, 41009 Seville, Spain; (C.J.-C.); (S.L.-E.); (G.A.); (V.S.-M.)
| | - Consuelo Santa-María
- Department of Biochemistry and Molecular Biology, University of Seville Pharmacy School, 41012 Seville, Spain;
| | - Gracia M. Martín-Núñez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (G.M.M.-N.); (L.G.-S.)
| | - Francisco J. Moreno-Ruiz
- Unidad de Gestión Clínica de Cirugía General, Digestiva y Trasplantes, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain;
| | - Sergio Valdés
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (S.V.); (S.G.-S.); (M.I.F.-R.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 29010 Málaga, Spain
| | - Sara García-Serrano
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (S.V.); (S.G.-S.); (M.I.F.-R.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 29010 Málaga, Spain
| | - Cristina Rodríguez-Díaz
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (C.R.-D.); (A.H.-P.)
| | - Ailec Ho-Plágaro
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (C.R.-D.); (A.H.-P.)
| | - María I. Fontalba-Romero
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (S.V.); (S.G.-S.); (M.I.F.-R.)
| | - Eduardo García-Fuentes
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (C.R.-D.); (A.H.-P.)
- CIBER Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 29010 Málaga, Spain
- Departamento de Farmacología, Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
| | - Lourdes Garrido-Sánchez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29010 Málaga, Spain; (G.M.M.-N.); (L.G.-S.)
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 29010 Málaga, Spain
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry, Molecular Biology and Immunology, University of Seville Medical School, 41009 Seville, Spain; (C.J.-C.); (S.L.-E.); (G.A.); (V.S.-M.)
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario Virgen del Rocío/Virgen Macarena, CSIC, Universidad de Sevilla, 41013 Seville, Spain
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2
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Loh JS, Mak WQ, Tan LKS, Ng CX, Chan HH, Yeow SH, Foo JB, Ong YS, How CW, Khaw KY. Microbiota-gut-brain axis and its therapeutic applications in neurodegenerative diseases. Signal Transduct Target Ther 2024; 9:37. [PMID: 38360862 PMCID: PMC10869798 DOI: 10.1038/s41392-024-01743-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 01/02/2024] [Accepted: 01/14/2024] [Indexed: 02/17/2024] Open
Abstract
The human gastrointestinal tract is populated with a diverse microbial community. The vast genetic and metabolic potential of the gut microbiome underpins its ubiquity in nearly every aspect of human biology, including health maintenance, development, aging, and disease. The advent of new sequencing technologies and culture-independent methods has allowed researchers to move beyond correlative studies toward mechanistic explorations to shed light on microbiome-host interactions. Evidence has unveiled the bidirectional communication between the gut microbiome and the central nervous system, referred to as the "microbiota-gut-brain axis". The microbiota-gut-brain axis represents an important regulator of glial functions, making it an actionable target to ameliorate the development and progression of neurodegenerative diseases. In this review, we discuss the mechanisms of the microbiota-gut-brain axis in neurodegenerative diseases. As the gut microbiome provides essential cues to microglia, astrocytes, and oligodendrocytes, we examine the communications between gut microbiota and these glial cells during healthy states and neurodegenerative diseases. Subsequently, we discuss the mechanisms of the microbiota-gut-brain axis in neurodegenerative diseases using a metabolite-centric approach, while also examining the role of gut microbiota-related neurotransmitters and gut hormones. Next, we examine the potential of targeting the intestinal barrier, blood-brain barrier, meninges, and peripheral immune system to counteract glial dysfunction in neurodegeneration. Finally, we conclude by assessing the pre-clinical and clinical evidence of probiotics, prebiotics, and fecal microbiota transplantation in neurodegenerative diseases. A thorough comprehension of the microbiota-gut-brain axis will foster the development of effective therapeutic interventions for the management of neurodegenerative diseases.
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Affiliation(s)
- Jian Sheng Loh
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Wen Qi Mak
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Li Kar Stella Tan
- School of Pharmacy, Faculty of Health & Medical Sciences, Taylor's University, 1, Jalan Taylors, Subang Jaya, 47500, Selangor, Malaysia
- Digital Health & Medical Advancements, Taylor's University, 1, Jalan Taylors, Subang Jaya, 47500, Selangor, Malaysia
| | - Chu Xin Ng
- School of Biosciences, Faculty of Health & Medical Sciences, Taylor's University, 1, Jalan Taylors, Subang Jaya, 47500, Selangor, Malaysia
| | - Hong Hao Chan
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Shiau Hueh Yeow
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Jhi Biau Foo
- School of Pharmacy, Faculty of Health & Medical Sciences, Taylor's University, 1, Jalan Taylors, Subang Jaya, 47500, Selangor, Malaysia
- Digital Health & Medical Advancements, Taylor's University, 1, Jalan Taylors, Subang Jaya, 47500, Selangor, Malaysia
| | - Yong Sze Ong
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Chee Wun How
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia.
| | - Kooi Yeong Khaw
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia.
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Vilariño-García T, Polonio-González ML, Pérez-Pérez A, Ribalta J, Arrieta F, Aguilar M, Obaya JC, Gimeno-Orna JA, Iglesias P, Navarro J, Durán S, Pedro-Botet J, Sánchez-Margalet V. Role of Leptin in Obesity, Cardiovascular Disease, and Type 2 Diabetes. Int J Mol Sci 2024; 25:2338. [PMID: 38397015 PMCID: PMC10888594 DOI: 10.3390/ijms25042338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Diabetes mellitus (DM) is a highly prevalent disease worldwide, estimated to affect 1 in every 11 adults; among them, 90-95% of cases are type 2 diabetes mellitus. This is partly attributed to the surge in the prevalence of obesity, which has reached epidemic proportions since 2008. In these patients, cardiovascular (CV) risk stands as the primary cause of morbidity and mortality, placing a substantial burden on healthcare systems due to the potential for macrovascular and microvascular complications. In this context, leptin, an adipocyte-derived hormone, plays a fundamental role. This hormone is essential for regulating the cellular metabolism and energy balance, controlling inflammatory responses, and maintaining CV system homeostasis. Thus, leptin resistance not only contributes to weight gain but may also lead to increased cardiac inflammation, greater fibrosis, hypertension, and impairment of the cardiac metabolism. Understanding the relationship between leptin resistance and CV risk in obese individuals with type 2 DM (T2DM) could improve the management and prevention of this complication. Therefore, in this narrative review, we will discuss the evidence linking leptin with the presence, severity, and/or prognosis of obesity and T2DM regarding CV disease, aiming to shed light on the potential implications for better management and preventive strategies.
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Affiliation(s)
- Teresa Vilariño-García
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen del Rocio University Hospital, University of Seville, Seville 41013, Spain;
| | - María L. Polonio-González
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Josep Ribalta
- Departament de Medicina i Cirurgia, University Rovira i Vigili, IISPV, CIBERDEM, 43007 Tarragona, Spain;
| | - Francisco Arrieta
- Endocrinology and Nutrition Service, Ramón y Cajal University Hospital, 28034 Madrid, Spain;
| | - Manuel Aguilar
- Endocrinology and Nutrition Service, Puerta del Mar University Hospital, Instituto de Investigación e Innovación en Ciencias Biomédicas de la Provincia de Cádiz (INiBICA), Cádiz University (UCA), 11001 Cádiz, Spain;
| | - Juan C. Obaya
- Chopera Helath Center, Alcobendas Primary Care,Alcobendas 28100 Madrid, Spain;
| | - José A. Gimeno-Orna
- Endocrinology and Nutrition Department, Hospital Clinico Universitario Lozano Blesa, 15 50009 Zaragoza, Spain;
| | - Pedro Iglesias
- Endocrinology and Nutrition Service, Puerta de Hierro University Hospital, Majadahonda, 28220 Madrid, Spain;
| | - Jorge Navarro
- Hospital Clínico Universitario de Valencia,46011 Valencia, Spain;
| | - Santiago Durán
- Endodiabesidad Clínica Durán & Asociados,41018 Seville, Spain;
| | - Juan Pedro-Botet
- Lipids and Cardiovascular Risk Unit, Hospital del Mar, Autonomous University of Barcelona, 08003 Barcelona, Spain;
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
- Institute of Biomedicine of Seville (IBIS), Hospital Universitario Virgen del Rocío/Virgen Macarena, CSIC, Universidad de Sevilla, 41013 Seville, Spain
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Vore AS, Marsland P, Barney TM, Varlinskaya EI, Landin JD, Healey KL, Kibble S, Swartzwelder HS, Chandler LJ, Deak T. Adolescent intermittent ethanol (AIE) produces lasting, sex-specific changes in rat body fat independent of changes in white blood cell composition. Front Physiol 2024; 15:1285376. [PMID: 38332987 PMCID: PMC10851431 DOI: 10.3389/fphys.2024.1285376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/10/2024] [Indexed: 02/10/2024] Open
Abstract
Early initiation of alcohol use during adolescence, and adolescent binge drinking are risk factors for the development of alcohol use disorder later in life. Adolescence is a time of rapid sex-dependent neural, physiological, and behavioral changes as well as a period of heightened vulnerability to many effects of alcohol. The goal of the present studies was to determine age-related changes in blood (leukocyte populations) and body composition across adolescence and early adulthood, and to investigate whether adolescent intermittent ethanol (AIE) exposure would alter the trajectory of adolescent development on these broad physiological parameters. We observed significant ontogenetic changes in leukocyte populations that were mirrored by an age-related increase in cytokine expression among mixed populations of circulating leukocytes. Despite these developmental changes, AIE did not significantly alter overall leukocyte numbers or cytokine gene expression. However, AIE led to sex-specific changes in body fat mass and fat percentage, with AIE-exposed male rats showing significantly decreased fat levels and female rats showing significantly increased fat levels relative to controls. These changes suggest that while AIE may not alter overall leukocyte levels, more complex phenotypic changes in leukocyte populations could underlie previously reported differences in cytokine expression. Coupled with long-term shifts in adipocyte levels, this could have long-lasting effects on innate immunity and the capacity of individuals to respond to later immunological and physiological threats.
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Affiliation(s)
- Andrew S. Vore
- Developmental Exposure Alcohol Research Center, Binghamton University-SUNY, Binghamton, NY, United States
| | - Paige Marsland
- Developmental Exposure Alcohol Research Center, Binghamton University-SUNY, Binghamton, NY, United States
| | - Thaddeus M. Barney
- Developmental Exposure Alcohol Research Center, Binghamton University-SUNY, Binghamton, NY, United States
| | - Elena I. Varlinskaya
- Developmental Exposure Alcohol Research Center, Binghamton University-SUNY, Binghamton, NY, United States
| | - Justine D. Landin
- Department of Neurosciences, Charleston Alcohol Research Center, Medical University of South Carolina, Charleston, SC, United States
| | - Kati L. Healey
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, United States
| | - Sandra Kibble
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, United States
| | - H. S. Swartzwelder
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, United States
| | - Lawrence J. Chandler
- Department of Neurosciences, Charleston Alcohol Research Center, Medical University of South Carolina, Charleston, SC, United States
| | - Terrence Deak
- Developmental Exposure Alcohol Research Center, Binghamton University-SUNY, Binghamton, NY, United States
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Zhang S, Zhang B, Liu Y, Li L. Adipokines in atopic dermatitis: the link between obesity and atopic dermatitis. Lipids Health Dis 2024; 23:26. [PMID: 38263019 PMCID: PMC10804547 DOI: 10.1186/s12944-024-02009-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/08/2024] [Indexed: 01/25/2024] Open
Abstract
Atopic dermatitis (AD) is a chronic skin condition with intense pruritus, eczema, and dry skin. The recurrent intense pruritus and numerous complications in patients with AD can profoundly affect their quality of life. Obesity is one of its comorbidities that has been confirmed to be the hazard factor of AD and also worsen its severity. Nevertheless, the specific mechanisms that explain the connection between obesity and AD remain incompletely recognized. Recent studies have built hopes on various adipokines to explain this connection. Adipokines, which are disturbed by an obese state, may lead to immune system imbalances in people with AD and promote the development of the disease. This review focuses on the abnormal expression patterns of adipokines in patients with AD and their potential regulatory molecular mechanisms associated with AD. The connection between AD and obesity is elucidated through the involvement of adipokines. This conduces to the in-depth exploration of AD pathogenesis and provides a new perspective to develop therapeutic targets.
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Affiliation(s)
- Shiyun Zhang
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China, No. 1 Shuaifuyuan, 100730
| | - Bingjie Zhang
- Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China, No. 1 Shuaifuyuan, 100730
| | - Yuehua Liu
- Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China, No. 1 Shuaifuyuan, 100730
| | - Li Li
- Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China, No. 1 Shuaifuyuan, 100730.
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Savino F, Sardo A, Gambarino S, Dini M, Clemente A, Pau A, Galliano I, Bergallo M. Leptin and Leptin Receptor Polymorphisms in Infants and Their Parents: Correlation with Preterm Birth. Genes (Basel) 2024; 15:139. [PMID: 38275620 PMCID: PMC10815013 DOI: 10.3390/genes15010139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
It has been proven that single-nucleotide polymorphisms (SNPs) in LEP and LEPR genes could predispose individuals to an increased risk of pregnancy adverse outcomes (PAOs) such as recurrent pregnancy loss (RPL) and pre-eclampsia. Preterm birth (PTB) is the leading cause of infant mortality. We decided to investigate the correlation between PTB and LEP and LEPR SNPs. The study cohort included families who underwent spontaneous PTB and control samples of families who had at-term-born (≥37 weeks of gestational age) children. Swabs were performed by rubbing the sticky end for about 30 s on the gum and on the inside of the cheek, allowing us to collect the flaking cells of the oral mucosa. Genotyping of the three SNPs-LEPRA668G, LEPG2548A and A19G-was carried out via an ARMS-MAMA real-time PCR procedure, as previously described. Regarding LEPG2548A, we found that the most expressed genotype in infants both in the preterm and the at-term group was AG; however, we did not discover any statistically significant difference (p = 0.97). Considering LEPA19G, none among the infants and parents were found to carry the AA genotype. No statistically significant differences were found between children, mothers and fathers belonging to preterm and at-term groups. We did not find a statistically significant association in newborns and their mother, but our results show a statistical correlation with the LEPRA668G genotype GG of the father. This fact can contribute to defining genetic risk factors for PTB. Further studies are certainly needed to better clarify the role of genetics in influencing preterm delivery.
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Affiliation(s)
- Francesco Savino
- Early Infancy Special Care Unit, Regina Margherita Children Hospital, A.O.U. Città della Salute e della Scienza di Torino, 10126 Torino, Italy; (F.S.); (A.S.)
| | - Allegra Sardo
- Early Infancy Special Care Unit, Regina Margherita Children Hospital, A.O.U. Città della Salute e della Scienza di Torino, 10126 Torino, Italy; (F.S.); (A.S.)
| | - Stefano Gambarino
- Department of Public Health and Pediatric Sciences, Immunopathology Laboratory, Medical School, University of Turin, 10126 Turin, Italy; (S.G.); (M.D.); (A.C.); (A.P.); (I.G.)
| | - Maddalena Dini
- Department of Public Health and Pediatric Sciences, Immunopathology Laboratory, Medical School, University of Turin, 10126 Turin, Italy; (S.G.); (M.D.); (A.C.); (A.P.); (I.G.)
| | - Anna Clemente
- Department of Public Health and Pediatric Sciences, Immunopathology Laboratory, Medical School, University of Turin, 10126 Turin, Italy; (S.G.); (M.D.); (A.C.); (A.P.); (I.G.)
| | - Anna Pau
- Department of Public Health and Pediatric Sciences, Immunopathology Laboratory, Medical School, University of Turin, 10126 Turin, Italy; (S.G.); (M.D.); (A.C.); (A.P.); (I.G.)
| | - Ilaria Galliano
- Department of Public Health and Pediatric Sciences, Immunopathology Laboratory, Medical School, University of Turin, 10126 Turin, Italy; (S.G.); (M.D.); (A.C.); (A.P.); (I.G.)
| | - Massimiliano Bergallo
- Department of Public Health and Pediatric Sciences, Immunopathology Laboratory, Medical School, University of Turin, 10126 Turin, Italy; (S.G.); (M.D.); (A.C.); (A.P.); (I.G.)
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7
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Franco C, Canzoniero LMT. Zinc homeostasis and redox alterations in obesity. Front Endocrinol (Lausanne) 2024; 14:1273177. [PMID: 38260166 PMCID: PMC10800374 DOI: 10.3389/fendo.2023.1273177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Impairment of both cellular zinc and redox homeostasis is a feature of several chronic diseases, including obesity. A significant two-way interaction exists between redox metabolism and the relatively redox-inert zinc ion. Redox metabolism critically influences zinc homeostasis and controls its cellular availability for various cellular functions by regulating zinc exchange from/to zinc-binding proteins. Zinc can regulate redox metabolism and exhibits multiple pro-antioxidant properties. On the other hand, even minor disturbances in zinc status and zinc homeostasis affect systemic and cellular redox homeostasis. At the cellular level, zinc homeostasis is regulated by a multi-layered machinery consisting of zinc-binding molecules, zinc sensors, and two selective families of zinc transporters, the Zinc Transporter (ZnT) and Zrt, Irt-like protein (ZIP). In the present review, we summarize the current state of knowledge on the role of the mutual interaction between zinc and redox homeostasis in physiology and pathophysiology, pointing to the role of zinc in the alterations responsible for redox stress in obesity. Since zinc transporters primarily control zinc homeostasis, we describe how changes in the expression and activity of these zinc-regulating proteins are associated with obesity.
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8
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Kalusche W, Case C, Taylor E. Leptin antagonism attenuates hypertension and renal injury in an experimental model of autoimmune disease. Clin Sci (Lond) 2023; 137:1771-1785. [PMID: 38031726 PMCID: PMC10721433 DOI: 10.1042/cs20230924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder that is characterized by B- and T-lymphocyte dysfunction and altered cytokine production, including elevated levels of the adipocytokine leptin. Leptin has various immunomodulatory properties, including promoting the expansion of proinflammatory T lymphocytes and the proliferation and survival of B cells. In the present study, we hypothesized that leptin antagonism would improve B- and T-cell dysfunction and attenuate hypertension in an experimental model of SLE, the NZBWF1 mouse. To test this hypothesis, 28-week-old female control and SLE mice were administered 5 mg/kg of murine leptin superantagonist (LA) or vehicle via ip injection every other day for four weeks. Analysis of peripheral blood immune cell populations showed no changes in total CD45R+ B and CD3+ T cell percentages after treatment with LA. However, SLE mice treated with LA had an improved CD4/CD8 ratio and decreased CD3+CD4-CD8- double negative (DN) T cells. Blood pressure was higher in SLE than in control, and treatment with LA decreased blood pressure in SLE mice. Treatment with LA also delayed the onset of albuminuria and decreased glomerulosclerosis in SLE mice. Renal immune cell infiltration was significantly higher in SLE mice as compared with control, but LA treatment was associated with decreased levels of renal CD4+ T cells. In conclusion, these data suggest that leptin plays a pathogenic role in the development of hypertension in SLE, in part, by promoting the expansion of inflammatory DN T cells and the infiltration of T cells into the kidneys.
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Affiliation(s)
- William J. Kalusche
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Clinton T. Case
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Erin B. Taylor
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
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9
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Zhang Y, Yu X, Bao R, Huang H, Gu C, Lv Q, Han Q, Du X, Zhao XY, Ye Y, Zhao R, Sun J, Zou Q. Dietary fructose-mediated adipocyte metabolism drives antitumor CD8 + T cell responses. Cell Metab 2023; 35:2107-2118.e6. [PMID: 37863051 DOI: 10.1016/j.cmet.2023.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/14/2023] [Accepted: 09/25/2023] [Indexed: 10/22/2023]
Abstract
Fructose consumption is associated with tumor growth and metastasis in mice, yet its impact on antitumor immune responses remains unclear. Here, we show that dietary fructose modulates adipocyte metabolism to enhance antitumor CD8+ T cell immune responses and control tumor growth. Transcriptional profiling of tumor-infiltrating CD8+ T cells reveals that dietary fructose mediates attenuated transition of CD8+ T cells to terminal exhaustion, leading to a superior antitumor efficacy. High-fructose feeding initiates adipocyte-derived leptin production in an mTORC1-dependent manner, thereby triggering leptin-boosted antitumor CD8+ T cell responses. Importantly, high plasma leptin levels are correlated with elevated plasma fructose concentrations and improved antitumor CD8+ T cell responses in patients with lung cancer. Our study characterizes a critical role for dietary fructose in shaping adipocyte metabolism to prime antitumor CD8+ T cell responses and highlights that the fructose-leptin axis may be harnessed for cancer immunotherapy.
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Affiliation(s)
- Yuerong Zhang
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xiaoyan Yu
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Rujuan Bao
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Haiyan Huang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Chuanjia Gu
- Department of Respiratory Endoscopy, Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Qianming Lv
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Qiaoqiao Han
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xian Du
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xu-Yun Zhao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Youqiong Ye
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
| | - Ren Zhao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Jiayuan Sun
- Department of Respiratory Endoscopy, Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
| | - Qiang Zou
- Shanghai Chest Hospital & Shanghai Institute of Immunology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
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10
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Su R, Zhao S, Zhang J, Cao M, Peng S. Metabolic influences on T cell in psoriasis: a literature review. Front Immunol 2023; 14:1279846. [PMID: 38035065 PMCID: PMC10684739 DOI: 10.3389/fimmu.2023.1279846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/25/2023] [Indexed: 12/02/2023] Open
Abstract
Psoriasis is a systemic inflammatory disease that frequently coexists with various other conditions, such as essential hypertension, diabetes, metabolic syndrome, and inflammatory bowel disease. The association between these diseases may be attributed to shared inflammatory pathways and abnormal immunomodulatory mechanisms. Furthermore, metabolites also play a regulatory role in the function of different immune cells involved in psoriasis pathogenesis, particularly T lymphocytes. In this review, we have summarized the current research progress on T cell metabolism in psoriasis, encompassing the regulation of metabolites in glucose metabolism, lipid metabolism, amino acid metabolism, and other pathways within T cells affected by psoriasis. We will also explore the interaction and mechanism between psoriatic metabolites and immune cells. Moreover, we further discussed the research progress of metabolomics in psoriasis to gain a deeper understanding of its pathogenesis and identify potential new therapeutic targets through identification of metabolic biomarkers associated with this condition.
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Affiliation(s)
- Rina Su
- *Correspondence: Shiguang Peng, ; Rina Su,
| | | | | | | | - Shiguang Peng
- Department of Dermatology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
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Hebebrand J, Antel J, von Piechowski L, Kiewert C, Stüve B, Gradl-Dietsch G. Case report: Rapid improvements of anorexia nervosa and probable myalgic encephalomyelitis/chronic fatigue syndrome upon metreleptin treatment during two dosing episodes. Front Psychiatry 2023; 14:1267495. [PMID: 38025476 PMCID: PMC10666640 DOI: 10.3389/fpsyt.2023.1267495] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023] Open
Abstract
A comorbidity of anorexia nervosa (AN) and myalgic encephalomyelitis (ME/CSF) is uncommon. A 17 years-old male adolescent with possible onset of ME/CFS after an Epstein Barr Virus infection (EBV) and later onset of AN during a second period of weight loss was twice treated off-label with metreleptin for 15 and 11 days, respectively. As in previous cases, eating disorder specific cognitions and mood improved. Interestingly, fatigue and post-exertional muscle pain (P-EMP) improved, too. We discuss potential mechanisms. Treatment with metreleptin may prove beneficial in AN and in ME/CSF associated with substantial weight loss.
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Affiliation(s)
- Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Jochen Antel
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Linda von Piechowski
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Münster, University of Münster, Münster, Germany
| | - Cordula Kiewert
- Division of Pediatric Endocrinology and Diabetology, Department of Pediatrics II, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Burkhard Stüve
- Department of Pediatric Neurology, Centre for Neuromuscular Disorders, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Department of Neuropediatrics, DRK Children’s Hospital, Siegen, Germany
| | - Gertraud Gradl-Dietsch
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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12
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Krause BJ, Vega-Tapia FA, Soto-Carrasco G, Lefever I, Letelier C, Saez CG, Castro-Rodriguez JA. Maternal obesity and high leptin levels prime pro-inflammatory pathways in human cord blood leukocytes. Placenta 2023; 142:75-84. [PMID: 37651852 DOI: 10.1016/j.placenta.2023.08.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/18/2023] [Accepted: 08/20/2023] [Indexed: 09/02/2023]
Abstract
INTRODUCTION Maternal obesity alters the immune function in the offspring. We hypothesize that maternal obesity and pro-inflammatory pathways induce leptin-related genes in neonatal monocytes, whereby high leptin levels enhance their inflammatory response. METHODS Transcriptional profiles of cord blood leukocytes (CBL) in basal and pro-inflammatory conditions were studied to determine differentially expressed genes (DEG). The DNA methylation profile of CB monocytes (CBM) of neonates born to control BMI mothers and women with obesity was assayed to identify differentially methylated probes (DMP). CBM-derived macrophages were cultured with or without leptin (10-100 ng/ml) and then stimulated with lipopolysaccharide (LPS, 100 ng/ml) and interferon-gamma (20 ng/ml) to assess the induction of TNF-α and IL-10 transcripts. RESULTS CBL from pregnancies with obesity (CBL-Ob) showed 12,183 DEG, affecting 49 out of 78 from the leptin pathway. Control CBM exposed to LPS showed 45 leptin-related DEG, an effect prevented by the co-exposure to LPS and IL-10. Conversely, CBM-Ob showed 5279 DMP enriched in insulin- and leptin-related genes, and Lasso regression of leptin-related DMP showed high predictive value for plasma leptin levels (r2 = 0.9897) and maternal BMI categories (AUC = 1). Chronic exposure to leptin increased TNF-α and decreased IL-10 levels in control BMI samples but not in Ob-CBM. Enhanced TNF-α induction after proinflammatory stimulation was observed in leptin-treated control BMI samples. DISCUSSION Obesity in pregnancy is associated with a distinctive expression and DNA methylation profile of leptin-related genes in cord blood monocytes, meanwhile, leptin enhances the expression of pro-inflammatory cytokines upon stimulation with M1-skewing agents.
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Affiliation(s)
- Bernardo J Krause
- Institute of Health Sciences, Universidad de O'Higgins, Rancagua, Chile.
| | - Fabian A Vega-Tapia
- Laboratory of Ocular and Systemic Autoimmune Diseases, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Gustavo Soto-Carrasco
- Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Isidora Lefever
- Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Catalina Letelier
- Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia G Saez
- Hematology-Oncology Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jose A Castro-Rodriguez
- Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Ailizire A, Wang X, Ma Y, Yan X, Li S, Wu Z, Du W. How hypoxia affects microbiota metabolism in mice. Front Microbiol 2023; 14:1244519. [PMID: 37840721 PMCID: PMC10569469 DOI: 10.3389/fmicb.2023.1244519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 08/25/2023] [Indexed: 10/17/2023] Open
Abstract
Objective To investigate the relationship between gut microbiota and the fecal metabolites of hypoxic environments in mice. Methods High-fat diet-induced obese mice (n = 20) and normal diet-fed mice (n = 20) were randomly divided into four groups: high altitude obese group (HOB), high altitude normal weight group (HN), low altitude obese group LOB (LOB), and low altitude normal weight group (LN). Fecal samples from each group were 16S rRNA gene sequenced, and five samples from each of the four groups above were selected for non-targeted fecal metabolomics analysis using liquid chromatography-mass spectrometry. The relationship between gut microbiota and fecal metabolites was analyzed using SIMCA 14.1, MetaboAnalyst 5.0 and R 4.1.11. Results (A) Body weight was significantly lower in the hypoxic obesity group than in the normoxic obesity group. (B) Differences in α-diversity and β-diversity were found in the fecal gut microbiota of mice of different body weights and altitude, and the diversity of gut microbiota was higher in the normal group than in the obese group; the results of the comparison between the two groups showed that Faecalibaculum, Romboutsia, Lactobacillus, and A2 were associated with obesity; Romboutsia was associated with hypoxia. (C) The metabolic profiles of fecal metabolites differed between groups: gut microbiota were associated with nucleotide and amino acid metabolism in the same body groups, while gut microbiota were associated with lipid and amino acid metabolism in the same oxygen concentration groups. Conclusion (a) Gut microbiota diversity was reduced in obese groups. Romboutsia was the dominant microbiota in the hypoxia group. (b) Gut microbiota were associated with nucleotide and amino acid metabolism in the same body weight groups, while they were associated with lipid and amino acid metabolism in the same altitude groups.
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Affiliation(s)
- Ainiwaer Ailizire
- Department of Public Health, Qinghai University School of Medicine, Xining, China
| | - Xiaojing Wang
- Department of Proctology, Qinghai Provincial Traditional Chinese Medicine Hospital, Xining, China
| | - Yan Ma
- Research Center for High Altitude Medicine, Qinghai University School of Medicine, Xining, China
- Key Laboratory for Application of High Altitude Medicine in Qinghai Province, Qinghai University, Xining, China
| | - Xin Yan
- Department of Public Health, Qinghai University School of Medicine, Xining, China
| | - Shiqi Li
- Department of Public Health, Qinghai University School of Medicine, Xining, China
| | - Ziyi Wu
- Department of Public Health, Qinghai University School of Medicine, Xining, China
| | - Wenqi Du
- Department of Public Health, Qinghai University School of Medicine, Xining, China
- Research Center for High Altitude Medicine, Qinghai University School of Medicine, Xining, China
- Key Laboratory for Application of High Altitude Medicine in Qinghai Province, Qinghai University, Xining, China
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14
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Alghadir AH, Gabr SA, Iqbal A. Mineral elements and adiposity-related consequences in adolescents with intellectual disabilities. BMC Mol Cell Biol 2023; 24:29. [PMID: 37730529 PMCID: PMC10512604 DOI: 10.1186/s12860-023-00490-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/12/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Patients with intellectual disabilities are shown to have a limited capacity for cooperation, communication,and other biological consequences, which significantly require a specialized interest in healthcare professionals worldwide. AIM In this respect, the present study was designed to evaluate the levels mineral elements, and their correlation with oxidative stress markers and adiposity markers; leptin (L), adiponectin (A), and L/A ratio in adolescents with intellectual disabilities. METHODS A total of 350 schoolchildren aged (12-18 years) were randomly invited to participate in this prospective, observational study. Only 300 participants agreed to participate in this study. According to Intelligence quotients scores (IQ) measured by WISC-III, the participants were classified into two groups; the healthy control group (no = 180; IQ = 90-114); and the moderate intellectual disability (MID) group (no = 120; IQ = 35-49). Adiposity markers; body mass index (BMI), waist-to-hip ratio (WHR), waist-to-height ratio (WHtR), physical activity scores, adipokines biomarkers; leptin, adiponectin, L/A ratio, oxidative stress, and plasma mineral elements were evaluated by prevalidated questionnaires, inductively coupled plasma-mass spectrometry (ICP-MS), colorimetric, and immunoassay techniques. RESULTS Intellectual disability of moderate type was reported in 40% of the studied populations most of them are men aged 12-18 years (66.6% for men vs. 33.3 for females). Obesity was shown to be associated with the degree of intellectual disability of the students. There was a significant (P = 0.001) increase in the BMI, WHR, and WHtR scores as obesity markers with poor physical activity (P = 0.01) in students with poor disability compared to healthy controls (HC). The levels of leptin (P = 0.001), adiponectin (P = 0.01), and L/A ratio (P = 0.01) as adiposity biomarkers were significantly increased in students with MID compared to healthy controls. Also, oxidative stress measured by malondialdehyde (MDA) (P = 0.01) and total antioxidant capacity (TAC) (P = 0.01) were significantly increased in students with MID compared to healthy control subjects. In addition, mineral elements were shown to be linked with intellectual disability. The data showed that the levels of Fe, Mn, Zn, Hg, Pb, Ca, Cr, Mg, and Ni significantly (P = 0.001) increased, and the levels of Al, Na, K, Cu, and Zn/Cu ratio significantly (P = 0.001) decreased in subjects with MID compared to healthy controls. Correlation analysis concluded that changes in mineral elements significantly correlated with adiposity markers, oxidative stress, and the scores of intellectual disability (WISC III-IQ score). CONCLUSION The intellectual disability of moderate type (MID) was associated with abnormal changes in the levels of essential mineral elements and adipokines and increased levels of cellular oxidative stress. Thus, evaluating plasma mineral elements and adipokines levels could be a potential diagnostic parameter for diagnosing MID.
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Affiliation(s)
- Ahmad H Alghadir
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
| | - Sami A Gabr
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
| | - Amir Iqbal
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia.
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15
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Norton BC, Telese A, Papaefthymiou A, Aslam N, Makaronidis J, Murray C, Haidry R. Metabolic and Bariatric Endoscopy: A Mini-Review. Life (Basel) 2023; 13:1905. [PMID: 37763308 PMCID: PMC10532500 DOI: 10.3390/life13091905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
We are currently in a worldwide obesity pandemic, which is one of the most significant health problems of the 21st century. As the prevalence of obesity continues to rise, new and innovate treatments are becoming available. Metabolic and bariatric endoscopic procedures are exciting new areas of gastroenterology that have been developed as a direct response to the obesity crisis. These novel interventions offer a potentially reversible, less invasive, safer, and more cost-effective method of tackling obesity compared to traditional bariatric surgery. Minimally invasive endoscopic treatments are not entirely novel, but as technology has rapidly improved, many of the procedures have been proven to be extremely effective for weight loss and metabolic health, based on high-quality clinical trial data. This mini-review examines the existing evidence for the most prominent metabolic and bariatric procedures, followed by a discussion on the future trajectory of this emerging subspecialty.
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Affiliation(s)
- Benjamin Charles Norton
- Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Pl, London SW1X 7HY, UK
- Department of Gastroenterology, University College London Hospital Euston Road, London NW1 2BU, UK
- Centre for Obesity Research, Rayne Institute, Department of Medicine, University College London, London WC1E 6BT, UK
| | - Andrea Telese
- Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Pl, London SW1X 7HY, UK
- Centre for Obesity Research, Rayne Institute, Department of Medicine, University College London, London WC1E 6BT, UK
| | - Apostolis Papaefthymiou
- Department of Gastroenterology, University College London Hospital Euston Road, London NW1 2BU, UK
| | - Nasar Aslam
- Department of Gastroenterology, University College London Hospital Euston Road, London NW1 2BU, UK
| | - Janine Makaronidis
- Centre for Obesity Research, Rayne Institute, Department of Medicine, University College London, London WC1E 6BT, UK
- Bariatric Centre for Weight Management and Metabolic Surgery, University College London Hospital, London WC1E 6BT, UK
- Department of Endocrinology and Diabetes, University College London Hospital, London WC1E 6BT, UK
- National Institute of Health Research, UCLH Biomedical Research Centre, London W1T 7DN, UK
| | - Charles Murray
- Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Pl, London SW1X 7HY, UK
| | - Rehan Haidry
- Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Pl, London SW1X 7HY, UK
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16
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Hornburg D, Wu S, Moqri M, Zhou X, Contrepois K, Bararpour N, Traber GM, Su B, Metwally AA, Avina M, Zhou W, Ubellacker JM, Mishra T, Schüssler-Fiorenza Rose SM, Kavathas PB, Williams KJ, Snyder MP. Dynamic lipidome alterations associated with human health, disease and ageing. Nat Metab 2023; 5:1578-1594. [PMID: 37697054 PMCID: PMC10513930 DOI: 10.1038/s42255-023-00880-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/28/2023] [Indexed: 09/13/2023]
Abstract
Lipids can be of endogenous or exogenous origin and affect diverse biological functions, including cell membrane maintenance, energy management and cellular signalling. Here, we report >800 lipid species, many of which are associated with health-to-disease transitions in diabetes, ageing and inflammation, as well as cytokine-lipidome networks. We performed comprehensive longitudinal lipidomic profiling and analysed >1,500 plasma samples from 112 participants followed for up to 9 years (average 3.2 years) to define the distinct physiological roles of complex lipid subclasses, including large and small triacylglycerols, ester- and ether-linked phosphatidylethanolamines, lysophosphatidylcholines, lysophosphatidylethanolamines, cholesterol esters and ceramides. Our findings reveal dynamic changes in the plasma lipidome during respiratory viral infection, insulin resistance and ageing, suggesting that lipids may have roles in immune homoeostasis and inflammation regulation. Individuals with insulin resistance exhibit disturbed immune homoeostasis, altered associations between lipids and clinical markers, and accelerated changes in specific lipid subclasses during ageing. Our dataset based on longitudinal deep lipidome profiling offers insights into personalized ageing, metabolic health and inflammation, potentially guiding future monitoring and intervention strategies.
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Affiliation(s)
- Daniel Hornburg
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Si Wu
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Mahdi Moqri
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Xin Zhou
- Department of Genetics, Stanford University, Stanford, CA, USA
| | | | - Nasim Bararpour
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Gavin M Traber
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Baolong Su
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | | | - Monica Avina
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Wenyu Zhou
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Jessalyn M Ubellacker
- Department of Genetics, Stanford University, Stanford, CA, USA
- Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | | | - Paula B Kavathas
- Departments of Laboratory Medicine and Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Kevin J Williams
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Lipidomics Laboratory, University of California, Los Angeles, Los Angeles, CA, USA
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17
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Gonçalves CCRA, Feitosa BM, Cavalcante BV, Lima ALGDSB, de Souza CM, Joventino LB, Cavalcante MB. Obesity and recurrent miscarriage: The interconnections between adipose tissue and the immune system. Am J Reprod Immunol 2023; 90:e13757. [PMID: 37641378 DOI: 10.1111/aji.13757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 08/31/2023] Open
Abstract
Currently, obesity is considered a global public health problem. It is the main risk factor for noncommunicable diseases and reproductive complications, such as recurrent miscarriage (RM). RM affects approximately 1% of couples of reproductive age, and recent studies suggest that its prevalence is increasing. Immunological abnormalities may be responsible for a significant number of cases of unexplained RM. Obesity is recognized as a chronic low-grade inflammatory condition. The accumulation of fat in obese adipose tissue promotes changes in the local and systemic immune response. Adipokines, exosomes, micro-RNAs, lipids, and other factors released or secreted by adipose tissue are responsible for the interconnection between obesity and the immune system. Obesity-induced dysregulation of the innate and acquired immune response is also involved in the immunopathology of pregnancy loss in patients with unexplained RM. Therefore, understanding the communication pathways between maternal adipose tissue and the immune response in women living with obesity and RM is an important objective. Thus, diagnostic tools and new immunomodulatory therapies may be proposed for the management of patients with concurrent obesity and RM.
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Affiliation(s)
| | | | | | | | | | | | - Marcelo Borges Cavalcante
- Medical School, Universidade de Fortaleza (UNIFOR), Fortaleza, CE, Brazil
- Postgraduate Program in Medical Sciences, Universidade de Fortaleza (UNIFOR), Fortaleza, CE, Brazil
- CONCEPTUS - Reproductive Medicine, Fortaleza, Brazil
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18
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D'Elia L, Masulli M, Iacone R, Russo O, Strazzullo P, Galletti F. Relationship between leptin and white blood cells: a potential role in infection susceptibility and severity-the Olivetti Heart Study. Intern Emerg Med 2023; 18:1429-1436. [PMID: 37217748 PMCID: PMC10202358 DOI: 10.1007/s11739-023-03313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 05/12/2023] [Indexed: 05/24/2023]
Abstract
A number of evidence showed an emerging role of leptin on immune system, involving inflammation, and innate and adaptive immunity. Few observational studies have evaluated the relationship between leptin and immunity, albeit with low statistical power and methodological differences. Therefore, the aim of this study was to evaluate the potential role of leptin on the immunity, expressed as white blood cells (WBC)-and its subpopulations, by comprehensive multivariate models in a sample of adult men. A cross-sectional evaluation of a general population comprised 939 subjects participating in the Olivetti Heart Study, with available leptin levels and WBC-and its subpopulations. WBC were significantly and positively associated with leptin, C-reactive protein and HOMA index (p < 0.05), but not with age and anthropometric indices (p > 0.05). The multivariate analysis confirmed the association between leptin and WBC, after accounting for main confounders (p < 0.05). Additional analysis on WBC subpopulations showed a positive and significant correlation between leptin and lymphocytes, monocytes and eosinophils (p < 0.05), but not with neutrophils and basophils (p > 0.05). After stratification by body weight, the positive and significant association between leptin and WBC-and its subpopulations-was found in excess body weight participants. The results of this study indicate a direct relationship between leptin levels and WBC-and its subpopulations-in excess body weight participants. These results support the hypothesis that leptin has modulatory functions on immunity and role in the pathophysiology of immune-related diseases, in particular in those associated with excess body weight.
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Affiliation(s)
- Lanfranco D'Elia
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy.
| | - Maria Masulli
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Roberto Iacone
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Ornella Russo
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Pasquale Strazzullo
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Ferruccio Galletti
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy.
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19
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Mohammed Saeed W, Nasser Binjawhar D. Association of Serum Leptin and Adiponectin Concentrations with Type 2 Diabetes Biomarkers and Complications Among Saudi Women. Diabetes Metab Syndr Obes 2023; 16:2129-2140. [PMID: 37465649 PMCID: PMC10351522 DOI: 10.2147/dmso.s405476] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/10/2023] [Indexed: 07/20/2023] Open
Abstract
Objective Hyperglycemia and insulin resistance (IR) put obese women with Type 2 diabetes mellitus (T2DM) at risk for cardiovascular disease (CVD). Methods 150 T2DM women aged 30-45 were studied cross-sectionally at Madinah Hospital lab to find T2DM risk factors and their association with adiponectin/leptin levels. Results Women with T2DM showed greater fasting blood glucose (FBG), hemoglobin A1c (HbA1c), triglycerides (TG), body mass index (BMI), waist circumference (WC), insulin resistance (IR), high-sensitivity C-reactive protein (hs-CRP), and CVD risk (high atherogenic index of plasma (AIP) and leptin), but decreased high-density lipoprotein (HDL-cholesterol) and poor insulin sensitivity with low adiponectin. Obese women with T2DM had increased leptin and reduced adiponectin. Leptin levels were significantly related to IR, BMI, and AIP (B= 3.97, P= 0.02) but not WC. Leptin levels were negatively correlated with insulin sensitivity (IS) and HDL-c (P< 0.05). In linear regression analysis, adiponectin levels had a significant association with IS and HDL-c (P= 0.03, P= 0.04) but an inverse relationship with IR, BMI, WC (B=-2.91, P= 0.04), and AIP (P< 0.05). Conclusion Increased leptin levels are related to high IR, AIP, and BMI among T2DM female patients. Similarly, adiponectin levels decrease IS and HDL-c. Therefore, obese T2DM women with high leptin and low adiponectin levels should be periodically checked to avoid or decrease consequences like CVD.
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Affiliation(s)
- Walaa Mohammed Saeed
- Department of Medical Laboratory Technology, Faculty of Applied Medical Science, Taibah University, Tayba, Medina, 42353, Saudi Arabia
| | - Dalal Nasser Binjawhar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudia Arabia
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20
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Grewal T, Buechler C. Adipokines as Diagnostic and Prognostic Markers for the Severity of COVID-19. Biomedicines 2023; 11:biomedicines11051302. [PMID: 37238973 DOI: 10.3390/biomedicines11051302] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Accumulating evidence implicates obesity as a risk factor for increased severity of disease outcomes in patients infected with severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2). Obesity is associated with adipose tissue dysfunction, which not only predisposes individuals to metabolic complications, but also substantially contributes to low-grade systemic inflammation, altered immune cell composition, and compromised immune function. This seems to impact the susceptibility and outcome of diseases caused by viruses, as obese people appear more vulnerable to developing infections and they recover later from infectious diseases than normal-weight individuals. Based on these findings, increased efforts to identify suitable diagnostic and prognostic markers in obese Coronavirus disease 2019 (COVID-19) patients to predict disease outcomes have been made. This includes the analysis of cytokines secreted from adipose tissues (adipokines), which have multiple regulatory functions in the body; for instance, modulating insulin sensitivity, blood pressure, lipid metabolism, appetite, and fertility. Most relevant in the context of viral infections, adipokines also influence the immune cell number, with consequences for overall immune cell activity and function. Hence, the analysis of the circulating levels of diverse adipokines in patients infected with SARS-CoV-2 have been considered to reveal diagnostic and prognostic COVID-19 markers. This review article summarizes the findings aimed to correlate the circulating levels of adipokines with progression and disease outcomes of COVID-19. Several studies provided insights on chemerin, adiponectin, leptin, resistin, and galectin-3 levels in SARS-CoV-2-infected patients, while limited information is yet available on the adipokines apelin and visfatin in COVID-19. Altogether, current evidence points at circulating galectin-3 and resistin levels being of diagnostic and prognostic value in COVID-19 disease.
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Affiliation(s)
- Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Christa Buechler
- Department of Internal Medicine I, Regensburg University Hospital, 93053 Regensburg, Germany
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21
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Kiełbowski K, Bakinowska E, Ostrowski P, Pala B, Gromowska E, Gurazda K, Dec P, Modrzejewski A, Pawlik A. The Role of Adipokines in the Pathogenesis of Psoriasis. Int J Mol Sci 2023; 24:ijms24076390. [PMID: 37047363 PMCID: PMC10094354 DOI: 10.3390/ijms24076390] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Psoriasis is a chronic and immune-mediated skin condition characterized by pro-inflammatory cytokines and keratinocyte hyperproliferation. Dendritic cells, T lymphocytes, and keratinocytes represent the main cell subtypes involved in the pathogenesis of psoriasis, while the interleukin-23 (IL-23)/IL-17 pathway enhances the disease progression. Human adipose tissue is an endocrine organ, which secretes multiple proteins, known as adipokines, such as adiponectin, leptin, visfatin, or resistin. Current evidence highlights the immunomodulatory roles of adipokines, which may contribute to the progression or suppression of psoriasis. A better understanding of the complexity of psoriasis pathophysiology linked with adipokines could result in developing novel diagnostic or therapeutic strategies. This review aims to present the pathogenesis of psoriasis and the roles of adipokines in this process.
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22
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Byeon SJ, Chang MS, Cho HJ, Park JH, Kim KH, Park JH, Choi IS, Kim W, Han DS, Ahn HS, Heo SC. Prognostic roles of leptin-signaling proteins, PD-L1, and tumor-infiltrating lymphocytes in surgically-resected biliary tract cancers. J Surg Oncol 2023; 127:587-597. [PMID: 36367404 DOI: 10.1002/jso.27140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Biliary tract cancers are rare, with a poor patient prognosis. Leptin and programmed death-ligand 1 (PD-L1) influence CD8+ and forkhead box P3 (FOXP3)+ lymphocytes, and thus, cancer cell growth. We aimed to define the prognostic implications of these variables and the clinicopathological features of biliary tract cancers. METHODS Immunohistochemistry for leptin signaling-related proteins (leptin, leptin receptor, pSTAT3, extracellular-regulated kinase, mammalian target of rapamycin), PD-L1, CD8, and FOXP3 and in situ hybridization for Epstein-Barr virus-encoded small RNAs were performed in 147 cases of surgically-resected biliary tract cancers. RESULTS Immune cell PD-L1-positivity, tumor size < 3 cm, adjuvant chemotherapy, no recurrence, and early-stage tumors were correlated with better 5-year survival in the tumoral PD-L1(-) and leptin(-) subgroups, and extrahepatic cholangiocarcinoma through multivariate analysis (all p < 0.05). Immune cell PD-L1 and adjuvant chemotherapy lost its prognostic significance in the tumoral PD-L1+ and leptin+ subgroups. CONCLUSIONS The prognostic implication of the variables may depend upon tumoral protein expression and the anatomical site. Immune cell PD-L1-positivity and the administration of adjuvant chemotherapy may indicate the favorable survival of patients with surgically-resected biliary tract cancers, specifically, in the tumoral PD-L1(-) or tumor leptin(-) subgroups and extrahepatic cholangiocarcinoma. PD-L1- or leptin-targeted therapy combined with conventional chemotherapy may benefit the tumoral PD-L1+ or leptin+ subgroups.
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Affiliation(s)
- Sun-Ju Byeon
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Mee Soo Chang
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hwa Jin Cho
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeong Hwan Park
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ki Hwan Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin Hyun Park
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - In Sil Choi
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Won Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong-Seok Han
- Department of Surgery, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Seong Ahn
- Department of Surgery, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seung Chul Heo
- Department of Surgery, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
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23
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Orlova E, Loginova O, Shirshev S. Leptin regulates thymic plasmacytoid dendritic cell ability to influence the thymocyte distribution in vitro. Int Immunopharmacol 2023; 117:109912. [PMID: 36857934 DOI: 10.1016/j.intimp.2023.109912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 02/07/2023] [Accepted: 02/14/2023] [Indexed: 03/03/2023]
Abstract
Leptin, the adipocyte-derived hormone, involved in regulating food intake and body weight, plays an important role in immunity and reproduction. Leptin signals via the specific membrane receptors expressed in most types of immune cells including dendritic cells (DCs) and thymocytes. Leptin enhances thymopoiesis and modulates T-cell-mediated immunity. Thymic plasmacytoid DCs (pDCs) are predominated in the thymus. They play an important role in thymocyte differentiation. We have analyzed whether leptin mediates its effects on human thymocytes by influencing on pDCs. We used leptin at concentration corresponding to its level during II-III trimesters of physiological pregnancy. We cultivated leptin-primed pDCs with autologous thymocytes and estimated the main thymocyte subsets expressing αβ chains of the T-cell receptor (αβTCR), natural regulatory T-cells (tTreg), natural T-helpers producing interleukin-17 (nTh17) and invariant natural killer T-cells (iNKT) in vitro. We have shown that leptin augmented CD86, CD276 expressions and depressed IL-10 productions by pDCs. Leptin-primed pDCs decreased the percentage of CD4+CD8+αβTCR+ thymocytes, increased CD4hiCD8-/loαβTCR+ cells. pDCs cultivated with leptin decreased the number of iNKT precursors, and did not change the number of tTreg and nTh17 precursors. Thus, leptin's important role in regulation of thymic pDC abilities to influence on the thymocyte distribution was indicated in vitro.
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Affiliation(s)
- Ekaterina Orlova
- Laboratory of Immunoregulation, Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina str., 614015 Perm, Russia.
| | - Olga Loginova
- Laboratory of Immunoregulation, Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina str., 614015 Perm, Russia.
| | - Sergei Shirshev
- Laboratory of Immunoregulation, Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina str., 614015 Perm, Russia.
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24
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Shih YL, Shih YH, Huang TC, Shih CC, Chen JY. Association between sedentary time and plasma leptin levels in middle-aged and older adult population in Taiwan: A community-based, cross-sectional study. Front Cardiovasc Med 2023; 9:1057497. [PMID: 36698957 PMCID: PMC9868819 DOI: 10.3389/fcvm.2022.1057497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/13/2022] [Indexed: 01/12/2023] Open
Abstract
Background Association of sedentary behavior and plasma leptin levels is a popular topic in recent research. Aged populations often suffer from cardiometabolic diseases, and leptin is considered a novel marker for many cardiometabolic diseases. To further explore this topic, our research investigates the relationship between sedentary time and serum leptin levels in middle-aged and older populations. Methods A total of 396 middle-aged and older adult Taiwanese participants were included in this study. We recorded their self-reported sitting time as sedentary time. Participants were categorized into low leptin, medium leptin group, and high leptin groups according to the tertile of serum leptin level in the study. We also analyzed the anthropometric and cardiometabolic parameters between the three groups. Spearman's correlation coefficient was used to analyze the correlation between leptin level, sedentary time, and other cardiometabolic risk factors. The relationsip between leptin and sedentary time was also shown in a scatter plot. Multivariate linear regression was performed to determine the association between serum leptin levels and sedentary time after adjusting for age, sex, alcohol consumption, smoking, triglycerides, body mass index (BMI), fasting plasma glucose, systolic blood pressure, uric acid, creatinine, and alanine transaminase (ALT). Results In our study, data from a total of 396 participants were analyzed. The average age of participants was 64.75 (±8.75) years, and ~41.4% were male. A longer period of sedentary time was observed in the high leptin group. A positive correlation was found between serum leptin level and sedentary time in Spearman's correlation, in all BMI groups. Serum leptin levels were positively associated with sedentary time (B = 0.603, p = 0.016) in the multivariate linear regression after adjusting for age, sex, alcohol consumption, smoking, triglycerides, BMI, fasting plasma glucose, systolic blood pressure, uric acid, creatinine, and ALT. Conclusion Prolonged sedentary time can be an independent risk factor for high serum leptin levels, and high leptin levels can be a novel marker in future healthcare to screen the individual with prolonged sedentary time. Furthermore, based on our study, future research can further explore the relationship between leptin levels and health promotion, especially decreasing sedentary time in the middle-aged and elder population, which is vulnerable to cardiometabolic diseases.
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Affiliation(s)
- Yu-Lin Shih
- Department of Family Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yun-Hsiang Shih
- School of Medicine, Medical University of Lublin, Lublin, Poland
| | - Tzu-Cheng Huang
- Department of Family Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chin-Chuan Shih
- General Administrative Department, United Safety Medical Group, New Taipei City, Taiwan
| | - Jau-Yuan Chen
- Department of Family Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan,College of Medicine, Chang Gung University, Taoyuan, Taiwan,*Correspondence: Jau-Yuan Chen ✉
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25
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He Z, Xu H, Li C, Yang H, Mao Y. Intermittent fasting and immunomodulatory effects: A systematic review. Front Nutr 2023; 10:1048230. [PMID: 36925956 PMCID: PMC10011094 DOI: 10.3389/fnut.2023.1048230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/09/2023] [Indexed: 03/04/2023] Open
Abstract
Introduction strategy of periodic food restriction and fixed eating windows, could beneficially modify individuals by losing body weight, regulating glucose or lipid metabolism, reducing blood pressure, and modulating the immune system. Specific effects of IF and its mechanisms have not yet been assessed collectively. Thus, this systematic review aims to summarize and compare clinical trials that explored the immunomodulatory effects of IF. Methods After screening, 28 studies were included in this systematic review. Results In addition to weight loss, IF could benefit health subjects by strengthening their circadian rhythms, migrating immune cells, lower inflammatory factors, and enriching microbials. In addition of the anti-inflammatory effect by regulating macrophages, protection against oxidative stress with hormone secretion and oxidative-related gene expression plays a key beneficial role for the influence of IF on obese subjects. Discussion Physiological stress by surgery and pathophysiological disorders by endocrine diseases may be partly eased with IF. Moreover, IF might be used to treat anxiety and cognitive disorders with its cellular, metabolic and circadian mechanisms. Finally, the specific effects of IF and the mechanisms pertaining to immune system in these conditions require additional studies.
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Affiliation(s)
- Zhangyuting He
- Peking Union Medical College, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haifeng Xu
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Changcan Li
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Huayu Yang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Yilei Mao
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
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26
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Sánchez-Ortega H, Jiménez-Cortegana C, Novalbos-Ruiz JP, Gómez-Bastero A, Soto-Campos JG, Sánchez-Margalet V. Role of Leptin as a Link between Asthma and Obesity: A Systematic Review and Meta-Analysis. Int J Mol Sci 2022; 24:ijms24010546. [PMID: 36613991 PMCID: PMC9820321 DOI: 10.3390/ijms24010546] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 12/31/2022] Open
Abstract
Asthma and obesity are considered as highly prevalent diseases with a great impact on public health. Obesity has been demonstrated to be an aggravating factor in the pathogenesis of asthma. Adipose tissue secretes proinflammatory cytokines and mediators, including leptin, which may promote the development and severity of asthma in obese patients. This study is a systematic review and a meta-analysis based on the relationship between leptin and asthma during obesity. MEDLINE, Cochrane, EMBASE and CINAHL databases were used. Data heterogeneity was analyzed using Cochran’s Q and treatment effect with the DerSimonian and Laird method. Random effect analyses were carried out to test data sensitivity. Asymmetry was estimated using Begg’s and Egger’s tests. All studies showed significant differences in leptin levels. The effect of the measures (p < 0.001), data sensitivity (p < 0.05) and data asymmetry were statistically significant, as well as tBegg’s test (p = 0.010) and Egge’s test (p < 0.001). Despite the existing limiting factors, the results of this study support the relevant role of leptin in the pathophysiology of asthma in obese subjects. Nevertheless, further studies are needed to obtain better insight in the relationship between leptin and asthma in obesity.
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Affiliation(s)
- Helena Sánchez-Ortega
- Medicine Laboratory Service, Department of Medical Biochemistry and Molecular Biology and Immunology, Medical School, Virgen Macarena University Hospital, University of Seville, Av. Dr. Fedriani 3, 41009 Seville, Spain
| | - Carlos Jiménez-Cortegana
- Medicine Laboratory Service, Department of Medical Biochemistry and Molecular Biology and Immunology, Medical School, Virgen Macarena University Hospital, University of Seville, Av. Dr. Fedriani 3, 41009 Seville, Spain
| | - José P. Novalbos-Ruiz
- Department of Biomedicine, Biotechnology and Public Health, Medical School, University of Cadiz, 11003 Cádiz, Spain
| | - Ana Gómez-Bastero
- Pneumology Service, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - José G. Soto-Campos
- Pneumology Service, Jerez University Hospital, University of Cadiz, 11003 Cádiz, Spain
| | - Víctor Sánchez-Margalet
- Medicine Laboratory Service, Department of Medical Biochemistry and Molecular Biology and Immunology, Medical School, Virgen Macarena University Hospital, University of Seville, Av. Dr. Fedriani 3, 41009 Seville, Spain
- Correspondence:
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27
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Cuttitta G, Ferraro M, Cibella F, Alfano P, Bucchieri S, Patti AM, Muratori R, Pace E, Bruno A. Relationship among Body Composition, Adipocytokines, and Irisin on Exercise Capacity and Quality of Life in COPD: A Pilot Study. Biomolecules 2022; 13:biom13010048. [PMID: 36671433 PMCID: PMC9855916 DOI: 10.3390/biom13010048] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 12/28/2022] Open
Abstract
Adipose tissue is an endocrine organ that interferes with the severity of chronic obstructive pulmonary disease (COPD). Although inflammatory markers, body composition, and nutritional status have a significant impact on pulmonary function, the real contribution of adipocytokines and myokines in COPD is still controversial. We aimed to evaluate the role played by the body composition, leptin, adiponectin, haptoglobin, and irisin on the functional exercise capacity, respiratory function, and quality of life (QoL) in COPD. In 25 COPD (20% GOLD-1; 60% GOLD-2; 20% GOLD-3) patients and 26 matched control subjects, we find that leptin, total adiponectin and haptoglobin are significantly increased whereas the 6 min walk test (6MWT) and physical functioning scores are significantly decreased in COPD versus controls. A significant positive relationship is found between leptin and fat mass and between 6MWT and the good health indicators of nutritional status. A significant inverse relationship is found between 6MWT and leptin and fat mass, FEV1 and haptoglobin, and irisin and haptoglobin. Phase angle and leptin level are significant predictors for functional exercise capacity assessed with 6MWT. Taken altogether, the results of this pilot study further support the role played by body composition and adipocytokines on exercise capacity respiratory function and QoL in COPD.
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Affiliation(s)
- Giuseppina Cuttitta
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), 90146 Palermo, Italy
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Maria Ferraro
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), 90146 Palermo, Italy
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Fabio Cibella
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Pietro Alfano
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), 90146 Palermo, Italy
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Salvatore Bucchieri
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), 90146 Palermo, Italy
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Angelo Maria Patti
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy
| | - Rosalba Muratori
- Azienda Sanitaria Provinciale di Palermo, Via Giacomo Cusmano, 24, 90141 Palermo, Italy
| | - Elisabetta Pace
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), 90146 Palermo, Italy
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Andreina Bruno
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), 90146 Palermo, Italy
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
- Correspondence:
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28
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Gang X, Gao T, Han Y, Tai Y, Zhong C, Chen S, Gao Y, Li L, Xiao Z, Barat D, Liu M. Effectiveness and safety of different academic schools of traditional Chinese medicine in the treatment of obesity: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2022; 101:e31960. [PMID: 36626424 PMCID: PMC9750627 DOI: 10.1097/md.0000000000031960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Obesity is a global epidemic. Since 1975, the global obesity rate has almost tripled. Although many systematic reviews and clinical trials have shown that traditional Chinese medicine (TCM) can effectively treat obesity, the effectiveness and safety of different academic schools of TCM in treating obesity have not been systematically evaluated. METHODS The retrieval language of this study was Chinese and English. From the date of creation of the following data to June 2023, the data of Medline, PubMed, Embase, Cochrane Science Network, China Biomedical Literature Database, Central Controlled Trial Registration Center, and China Science Journal Database were retrieved, respectively. This study included clinical randomized controlled trials related to the treatment of obesity by different academic schools of TCM. The main outcome measures were body mass index, waist circumference, hip circumference, waist hip ratio, body fat content, fasting blood glucose, glycosylated hemoglobin, and blood lipid level. In addition, we manually searched other resources, including reference lists of identified publications, conference articles, and gray literature. RESULTS This study will provide a more diverse choice of treatment options. CONCLUSION The purpose of this study is to summarize and evaluate the effectiveness and safety of different academic schools of TCM in improving and treating obese patients from clinical trials, so as to provide more options for obesity treatment.
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Affiliation(s)
- Xiaochao Gang
- Changchun University of Chinese Medicine, Changchun, China
| | - Tianjiao Gao
- Changchun University of Chinese Medicine, Changchun, China
| | - Yiran Han
- Changchun University, Changchun, China
| | - Yuxing Tai
- Changchun University of Chinese Medicine, Changchun, China
| | - Chongwen Zhong
- Changchun University of Chinese Medicine, Changchun, China
- Acupuncture and Massage Center of the Third Affiliated Clinical Hospital of Changchun University of Chinese Medicine, Changchun, China
| | - Shaotao Chen
- Changchun University of Chinese Medicine, Changchun, China
- Acupuncture and Massage Center of the Third Affiliated Clinical Hospital of Changchun University of Chinese Medicine, Changchun, China
| | - Ying Gao
- Changchun University of Chinese Medicine, Changchun, China
| | - Lijie Li
- Third Affiliated Clinical Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Zhenxiang Xiao
- Changchun University of Chinese Medicine, Changchun, China
| | - Dilnur Barat
- Changchun University of Chinese Medicine, Changchun, China
| | - Mingjun Liu
- Changchun University of Chinese Medicine, Changchun, China
- Acupuncture and Massage Center of the Third Affiliated Clinical Hospital of Changchun University of Chinese Medicine, Changchun, China
- *Correspondence: Mingjun Liu, College of Acupuncture and Massage, Changchun University of traditional Chinese medicine, 1035 Boshuo Road, Changchun 130117, China (e-mail: )
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Jiménez-Cortegana C, Hontecillas-Prieto L, García-Domínguez DJ, Zapata F, Palazón-Carrión N, Sánchez-León ML, Tami M, Pérez-Pérez A, Sánchez-Jiménez F, Vilariño-García T, de la Cruz-Merino L, Sánchez-Margalet V. Obesity and Risk for Lymphoma: Possible Role of Leptin. Int J Mol Sci 2022; 23:15530. [PMID: 36555171 PMCID: PMC9779026 DOI: 10.3390/ijms232415530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
Obesity, which is considered a pandemic due to its high prevalence, is a risk factor for many types of cancers, including lymphoma, through a variety of mechanisms by promoting an inflammatory state. Specifically, over the last few decades, obesity has been suggested not only to increase the risk of lymphoma but also to be associated with poor clinical outcomes and worse responses to different treatments for those diseases. Within the extensive range of proinflammatory mediators that adipose tissue releases, leptin has been demonstrated to be a key adipokine due to its pleotropic effects in many physiological systems and diseases. In this sense, different studies have analyzed leptin levels and leptin/leptin receptor expressions as a probable bridge between obesity and lymphomas. Since both obesity and lymphomas are prevalent pathophysiological conditions worldwide and their incidences have increased over the last few years, here we review the possible role of leptin as a promising proinflammatory mediator promoting lymphomas.
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Affiliation(s)
- Carlos Jiménez-Cortegana
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY 10065, USA
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Lourdes Hontecillas-Prieto
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Daniel J. García-Domínguez
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Fernando Zapata
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Natalia Palazón-Carrión
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - María L. Sánchez-León
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Malika Tami
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Flora Sánchez-Jiménez
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Teresa Vilariño-García
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Luis de la Cruz-Merino
- Oncology Service, Department of Medicines, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009 Seville, Spain
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Xie T, Wu D, Zhang J, Qiao P, Chen X, Liu D, Xiang M, Li H, Cai X, Lin Z, Yang W, Chen X, Chen H, Liu C. A new perspective: Fat tissue and adipokines in rheumatic heart valves. J Card Surg 2022; 37:4991-4998. [PMID: 36423241 DOI: 10.1111/jocs.17216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/27/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To observe fat tissue and the expression of adipokines in rheumatic heart valves and explore the possible role of fat tissue and adipokines in the pathology of rheumatic heart disease (RHD). METHODS In this retrospective study, a total of 29 patients who received mitral valve replacement surgery were included. The study group consisted of 25 patients with RHD while the control group consisted of 4 patients with secondary mitral insufficiency caused by coronary heart disease (CAD). The clinical data of the patients including medical history, age, body mass index (BMI), fasting blood glucose (FBG), total triglycerides (TG), total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), apolipoprotein(a) [apo(a)], apolipoprotein(b) [apo(b)] were collected and compared. Cardiac ultrasonography was used to assess valve conditions before surgery. The removed valves were collected. The hematoxylin-eosin (HE) staining, oil-red O staining, and Masson's trichrome staining were adopted to evaluate the histological changes in the mitral valve. Immunohistochemical (IMC) staining was performed to evaluate the expression of adiponectin, leptin, and chemerin. RESULTS There was no significant difference in general information and blood lipid levels between the two groups (all p > .05). Preoperative ultrasonography showed adipose tissue in the mitral valve of RHD patients. In the study group, rheumatic mitral valve samples showed thickening, adherence at the junction of the leaflets, calcification, and yellowish or fat mass by naked observation. The HE staining showed that there was calcification, inflammatory cell infiltration, fibrous tissue arranged disorder, and neovascularization. The oil-red O staining suggested fatty infiltration. Masson's trichrome staining suggested disorderly arrangement of collagen fiber and elastic fiber in rheumatic lesions, and the lesions were dominated by collagen fiber hyperplasia and less elastic fiber hyperplasia. The results of IMC indicated that chemerin was not expressed in valves of the control group. Most of the valve samples from the study group also did not show leptin and the leptin was seen in only a few rheumatic mitral valves with vascular hyperplasia. Adiponectin was not found in the valves of the study group and the control group. CONCLUSION Adipose tissue in the rheumatic mitral valve could be observed by ultrasound. The fat mass and adipokines existed in rheumatic mitral valves, the adipocytokine chemerin is involved in the progression of the pathology in RHD.
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Affiliation(s)
- Ting Xie
- Department of Cardiac Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Danna Wu
- Department of Pharmacy, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jie Zhang
- Department of Ultrasound Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Ping Qiao
- Department of Cardiovascular Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Xuan Chen
- International College of Nusing, Hainan Vacationnal Universitiy of Science and Technology, Haikou, Hainan, China
| | - Debin Liu
- Department of Cardiac Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Mei Xiang
- Department of Cardiac Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Haitao Li
- Department of Cardiovascular Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Xingjiu Cai
- Department of Cardiovascular Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Zhichuan Lin
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Wenkai Yang
- Department of Cardiovascular Surgery, Central People's Hosipital of Zhanjiang, Guangdong, Zhanjiang, China
| | - Xinzhong Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hao Chen
- Department of Vascular Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Cong Liu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Kirichenko TV, Markina YV, Bogatyreva AI, Tolstik TV, Varaeva YR, Starodubova AV. The Role of Adipokines in Inflammatory Mechanisms of Obesity. Int J Mol Sci 2022; 23:ijms232314982. [PMID: 36499312 PMCID: PMC9740598 DOI: 10.3390/ijms232314982] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/25/2022] [Accepted: 11/27/2022] [Indexed: 12/02/2022] Open
Abstract
Adipokines are currently widely studied cellular signaling proteins produced by adipose tissue and involved in various processes, including inflammation; energy and appetite modulation; lipid and glucose metabolism; insulin sensitivity; endothelial cell functioning; angiogenesis; the regulation of blood pressure; and hemostasis. The current review attempted to highlight the key functions of adipokines in the inflammatory mechanisms of obesity, its complications, and its associated diseases. An extensive search for materials on the role of adipokines in the pathogenesis of obesity was conducted online using the PubMed and Scopus databases until October 2022.
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Affiliation(s)
- Tatiana V. Kirichenko
- Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
- Chazov National Medical Research Center of Cardiology, 121552 Moscow, Russia
| | - Yuliya V. Markina
- Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
- Correspondence:
| | | | | | - Yurgita R. Varaeva
- Federal Research Centre for Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Antonina V. Starodubova
- Federal Research Centre for Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
- Medical Faculty, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
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Wu Y, Li X, Li Q, Cheng C, Zheng L. Adipose tissue-to-breast cancer crosstalk: Comprehensive insights. Biochim Biophys Acta Rev Cancer 2022; 1877:188800. [PMID: 36103907 DOI: 10.1016/j.bbcan.2022.188800] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
The review focuses on mechanistic evidence for the link between obesity and breast cancer. According to the IARC study, there is sufficient evidence that obesity is closely related to a variety of cancers. Among them, breast cancer is particularly disturbed by adipose tissue due to the unique histological structure of the breast. The review introduces the relationship between obesity and breast cancer from two aspects, including factors that promote tumorigenesis or metastasis. We summarize alterations in adipokines and metabolic pathways that contribute to breast cancer development. Breast cancer metastasis is closely related to obesity-induced pro-inflammatory microenvironment, adipose stem cells, and miRNAs. Based on the mechanism by which obesity causes breast cancer, we list possible therapeutic directions, including reducing the risk of breast cancer and inhibiting the progression of breast cancer. We also discussed the risk of autologous breast remodeling and fat transplantation. Finally, the causes of the obesity paradox and the function of enhancing immunity are discussed. Evaluating the balance between obesity-induced inflammation and enhanced immunity warrants further study.
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Affiliation(s)
- Yuan Wu
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China
| | - Xu Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Qiong Li
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China
| | - Chienshan Cheng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China
| | - Lan Zheng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China.
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Square wave voltammetric approach to leptin immunosensing and optimization of driving parameters with chemometrics. Biosens Bioelectron 2022; 216:114592. [PMID: 35969964 DOI: 10.1016/j.bios.2022.114592] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/13/2022] [Accepted: 07/20/2022] [Indexed: 12/28/2022]
Abstract
Square wave voltammetry serves as an effective analytical means to evaluate antigen-antibody coupling at the solid-liquid interface. Herein, we describe 3-aminopropyltrimethoxysilane (APTMS) induced irreversible immobilization of anti-leptin to micellar gold nanoparticles (AuNPs). Antibodies (Abs) were orthogonally loaded on micellized AuNP assemblies via amino residual groups. The ratio of bound Ab molecules was determined by the Bradford assay. The AuNP/Ab layer modified electrodes with variable antibody surface coverage (∼400 ± 55-200 ± 30 Ab/NP) were analyzed in terms of change in backward, net current (Ip) components. The rate of antigen coupling was found to be consistent with the variation in antibody density as well as the binding affinity. The lowest detection limit was observed at the femtomolar level (0.25 fM/mL) over a wide range of antigen concentration (6.2 ng/mL to 0.12 fg/mL). The variables affecting the epitope-paratope interaction were further optimized using a chemometric approach and a response surface methodology (RSM).
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Huston P. A Sedentary and Unhealthy Lifestyle Fuels Chronic Disease Progression by Changing Interstitial Cell Behaviour: A Network Analysis. Front Physiol 2022; 13:904107. [PMID: 35874511 PMCID: PMC9304814 DOI: 10.3389/fphys.2022.904107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
Managing chronic diseases, such as heart disease, stroke, diabetes, chronic lung disease and Alzheimer’s disease, account for a large proportion of health care spending, yet they remain in the top causes of premature mortality and are preventable. It is currently accepted that an unhealthy lifestyle fosters a state of chronic low-grade inflammation that is linked to chronic disease progression. Although this is known to be related to inflammatory cytokines, how an unhealthy lifestyle causes cytokine release and how that in turn leads to chronic disease progression are not well known. This article presents a theory that an unhealthy lifestyle fosters chronic disease by changing interstitial cell behavior and is supported by a six-level hierarchical network analysis. The top three networks include the macroenvironment, social and cultural factors, and lifestyle itself. The fourth network includes the immune, autonomic and neuroendocrine systems and how they interact with lifestyle factors and with each other. The fifth network identifies the effects these systems have on the microenvironment and two types of interstitial cells: macrophages and fibroblasts. Depending on their behaviour, these cells can either help maintain and restore normal function or foster chronic disease progression. When macrophages and fibroblasts dysregulate, it leads to chronic low-grade inflammation, fibrosis, and eventually damage to parenchymal (organ-specific) cells. The sixth network considers how macrophages change phenotype. Thus, a pathway is identified through this hierarchical network to reveal how external factors and lifestyle affect interstitial cell behaviour. This theory can be tested and it needs to be tested because, if correct, it has profound implications. Not only does this theory explain how chronic low-grade inflammation causes chronic disease progression, it also provides insight into salutogenesis, or the process by which health is maintained and restored. Understanding low-grade inflammation as a stalled healing process offers a new strategy for chronic disease management. Rather than treating each chronic disease separately by a focus on parenchymal pathology, a salutogenic strategy of optimizing interstitial health could prevent and mitigate multiple chronic diseases simultaneously.
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Affiliation(s)
- Patricia Huston
- Department of Family Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Institut du Savoir Montfort (Research), University of Ottawa, Ottawa, ON, Canada
- *Correspondence: Patricia Huston, , orcid.org/0000-0002-2927-1176
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Gvazava IG, Karimova MV, Vasiliev AV, Vorotelyak EA. Type 2 Diabetes Mellitus: Pathogenic Features and Experimental Models in Rodents. Acta Naturae 2022; 14:57-68. [PMID: 36348712 PMCID: PMC9611859 DOI: 10.32607/actanaturae.11751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/19/2022] [Indexed: 11/20/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is the most common endocrine disorder (90%) in the world; it has numerous clinical, immunological, and genetic differences from type 1 diabetes mellitus. The pathogenesis of T2DM is complex and not fully clear. To date, animal models remain the main tool by which to study the pathophysiology and therapy of T2DM. Rodents are considered the best choice among animal models, because they are characterized by a small size, short induction period, easy diabetes induction, and economic efficiency. This review summarizes data on experimental models of T2DM that are currently used, evaluates their advantages and disadvantages vis-a-vis research, and describes in detail the factors that should be taken into account when using these models. Selection of a suitable model for tackling a particular issue is not always trivial; it affects study results and their interpretation.
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Affiliation(s)
- I. G. Gvazava
- Institute of Developmental Biology, Russian Academy of Sciences, Moscow, 119334 Russia
| | - M. V. Karimova
- Institute of Developmental Biology, Russian Academy of Sciences, Moscow, 119334 Russia
| | - A. V. Vasiliev
- Institute of Developmental Biology, Russian Academy of Sciences, Moscow, 119334 Russia
- Lomonosov Moscow State University, Faculty of Biology, Moscow, 119234 Russia
| | - E. A. Vorotelyak
- Institute of Developmental Biology, Russian Academy of Sciences, Moscow, 119334 Russia
- Lomonosov Moscow State University, Faculty of Biology, Moscow, 119234 Russia
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Lee YH, Kim H, Nam S, Chu JR, Kim JH, Lim JS, Kim SE, Sung MK. Protective Effects of High-Fat Diet against Murine Colitis in Association with Leptin Signaling and Gut Microbiome. Life (Basel) 2022; 12:life12070972. [PMID: 35888062 PMCID: PMC9323536 DOI: 10.3390/life12070972] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/19/2022] [Accepted: 06/24/2022] [Indexed: 04/26/2023] Open
Abstract
Inflammatory bowel disease (IBD) is characterized by chronic intestinal-tract inflammation with dysregulated immune responses, which are partly attributable to dysbiosis. Given that diet plays a critical role in IBD pathogenesis and progression, we elucidated the effects of a high-fat diet (HFD) feeding on IBD development in relation to immune dysfunction and the gut microbiota. Five-week-old male C57BL/6J mice were fed either a normal diet (ND) or HFD for 14 weeks. The animals were further divided into ND, ND+ dextran sulfate sodium (DSS), HFD, and HFD+DSS treatment groups. The HFD+DSS mice exhibited lower body weight loss, lower disease activity index, longer colon length, and increased tight-junction protein expression and goblet-cell proportions compared with the ND+DSS mice. The T helper (h)1 and Th17 cell populations and pro-inflammatory cytokines involved in colitis pathogenesis were significantly more reduced in the HFD+DSS mice than in the ND+DSS mice. The HFD+DSS mice showed significantly increased serum leptin concentrations, colonic leptin receptor expression, enhanced anti-apoptotic AKT expression, and reduced pro-apoptotic MAPK and Bax expression compared with the ND+DSS mice, suggesting the involvement of the leptin-mediated pathway in intestinal epithelial cell apoptosis. The alterations in the gut-microbiota composition in the HFD+DSS group were the opposite of those in the ND+DSS group and rather similar to those of the ND group, indicating that the protective effects of HFD feeding against DSS-induced colitis are associated with changes in gut-microbiota composition. Overall, HFD feeding ameliorates DSS-induced colitis and colonic mucosal damage by reinforcing colonic barrier function and regulating immune responses in association with changes in gut-microbiota composition.
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Affiliation(s)
- Yun-Ha Lee
- Department of Food and Nutrition, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (Y.-H.L.); (H.K.); (J.-R.C.)
| | - Hyeyoon Kim
- Department of Food and Nutrition, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (Y.-H.L.); (H.K.); (J.-R.C.)
| | - Sorim Nam
- Division of Biological Sciences and Cellular Heterogeneity Research Center, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (S.N.); (J.-S.L.)
| | - Jae-Ryang Chu
- Department of Food and Nutrition, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (Y.-H.L.); (H.K.); (J.-R.C.)
| | - Jung-Hwan Kim
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 52727, Korea;
| | - Jong-Seok Lim
- Division of Biological Sciences and Cellular Heterogeneity Research Center, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (S.N.); (J.-S.L.)
| | - Sung-Eun Kim
- Department of Food and Nutrition, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (Y.-H.L.); (H.K.); (J.-R.C.)
- Correspondence: (S.-E.K.); (M.-K.S.); Tel.: +82-2-2077-7722 (S.-E.K.); +82-2-710-9395 (M.-K.S.)
| | - Mi-Kyung Sung
- Department of Food and Nutrition, Sookmyung Women’s University, Yongsan-gu, Seoul 04310, Korea; (Y.-H.L.); (H.K.); (J.-R.C.)
- Correspondence: (S.-E.K.); (M.-K.S.); Tel.: +82-2-2077-7722 (S.-E.K.); +82-2-710-9395 (M.-K.S.)
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Chang L, Kong A, Guo Y, Zhang J, Sun Y, Chen P, Wang X. Quercetin ameliorates salivary gland apoptosis and inflammation in primary Sjögren's syndrome through regulation of the leptin/OB-R signaling. Drug Dev Res 2022; 83:1351-1361. [PMID: 35749642 DOI: 10.1002/ddr.21964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/16/2022] [Accepted: 06/02/2022] [Indexed: 11/11/2022]
Abstract
Dry mouth is the main manifestation of Sjögren syndrome (SS). Quercetin has been reported to alleviate radiation-induced salivary gland damage, yet the effect of quercetin on SS-caused salivary gland damage remains unclear. This study aimed to investigate the effects of quercetin on SS-induced salivary gland damage and the mechanism underlying its therapeutic potential in SS. Here, NOD/Ltj mice were used to spontaneously mimic SS-induced salivary gland inflammation in vivo and salivary gland epithelial cells (SGECs) were stimulated by interferon-γ (IFN-γ) to mimic cell inflammation in vitro. Results showed that quercetin significantly reduced loss of saliva flow, salivary gland damage, cell apoptosis, and inflammatory response in NOD/Ltj mice. Quercetin treatment also significantly reduced the increased serum leptin (LP) levels in NOD/Ltj mice. Furthermore, quercetin blocked the increases in the expression of obesity receptor (OB-R) and its downstream Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signaling in the salivary glands. In vitro experiments confirmed that quercetin could protect SGECs from IFN-γ-induced cell apoptosis and inflammation through the LP/OB-R-activated JAK2/STAT3 signaling. Hence, quercetin might protect against SS-induced salivary gland damage by relieving cell apoptosis and inflammation by inhibiting the LP/OB-R signaling, providing a new perspective for treating SS-induced dry mouth.
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Affiliation(s)
- Lihua Chang
- Department of Rheumatology and Immunology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Aibin Kong
- Department of Nephropathy and Rheumatology, People's Hospital of Tacheng Prefecture, Tacheng, People's Republic of China
| | - Yun Guo
- Department of Rheumatology and Immunology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jing Zhang
- Department of Rheumatology and Immunology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yue Sun
- Department of Rheumatology and Immunology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Penglu Chen
- Department of Rheumatology and Immunology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xiaofei Wang
- Department of Rheumatology and Immunology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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Inflammation and Gastric Cancer. Diseases 2022; 10:diseases10030035. [PMID: 35892729 PMCID: PMC9326573 DOI: 10.3390/diseases10030035] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/16/2022] [Accepted: 06/19/2022] [Indexed: 11/17/2022] Open
Abstract
Gastric cancer remains a major killer globally, although its incidence has declined over the past century. It is the fifth most common cancer and the third most common reason for cancer-related deaths worldwide. Gastric cancer is the outcome of a complex interaction between environmental, host genetic, and microbial factors. There is significant evidence supporting the association between chronic inflammation and the onset of cancer. This association is particularly robust for gastrointestinal cancers in which microbial pathogens are responsible for the chronic inflammation that can be a triggering factor for the onset of those cancers. Helicobacter pylori is the most prominent example since it is the most widespread infection, affecting nearly half of the world’s population. It is well-known to be responsible for inducing chronic gastric inflammation progressing to atrophy, metaplasia, dysplasia, and eventually, gastric cancer. This review provides an overview of the association of the factors playing a role in chronic inflammation; the bacterial characteristics which are responsible for the colonization, persistence in the stomach, and triggering of inflammation; the microbiome involved in the chronic inflammation process; and the host factors that have a role in determining whether gastritis progresses to gastric cancer. Understanding these interconnections may improve our ability to prevent gastric cancer development and enhance our understanding of existing cases.
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Flores-Cordero JA, Pérez-Pérez A, Jiménez-Cortegana C, Alba G, Flores-Barragán A, Sánchez-Margalet V. Obesity as a Risk Factor for Dementia and Alzheimer's Disease: The Role of Leptin. Int J Mol Sci 2022; 23:5202. [PMID: 35563589 PMCID: PMC9099768 DOI: 10.3390/ijms23095202] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 12/12/2022] Open
Abstract
Obesity is a growing worldwide health problem, affecting many people due to excessive saturated fat consumption, lack of exercise, or a sedentary lifestyle. Leptin is an adipokine secreted by adipose tissue that increases in obesity and has central actions not only at the hypothalamic level but also in other regions and nuclei of the central nervous system (CNS) such as the cerebral cortex and hippocampus. These regions express the long form of leptin receptor LepRb, which is the unique leptin receptor capable of transmitting complete leptin signaling, and are the first regions to be affected by chronic neurocognitive deficits, such as mild cognitive impairment (MCI) and Alzheimer's Disease (AD). In this review, we discuss different leptin resistance mechanisms that could be implicated in increasing the risk of developing AD, as leptin resistance is frequently associated with obesity, which is a chronic low-grade inflammatory state, and obesity is considered a risk factor for AD. Key players of leptin resistance are SOCS3, PTP1B, and TCPTP whose signalling is related to inflammation and could be worsened in AD. However, some data are controversial, and it is necessary to further investigate the underlying mechanisms of the AD-causing pathological processes and how altered leptin signalling affects such processes.
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Affiliation(s)
| | | | | | | | | | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology and Immunology, Medical School, Virgen Macarena University Hospital, University of Seville, Av. Sánchez Pizjuan 4, 41009 Sevilla, Spain; (J.A.F.-C.); (A.P.-P.); (C.J.-C.); (G.A.); (A.F.-B.)
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40
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Webber T, Ronacher K, Conradie-Smit M, Kleynhans L. Interplay Between the Immune and Endocrine Systems in the Lung: Implications for TB Susceptibility. Front Immunol 2022; 13:829355. [PMID: 35273609 PMCID: PMC8901994 DOI: 10.3389/fimmu.2022.829355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/02/2022] [Indexed: 12/25/2022] Open
Abstract
The role of the endocrine system on the immune response, especially in the lung, remains poorly understood. Hormones play a crucial role in the development, homeostasis, metabolism, and response to the environment of cells and tissues. Major infectious and metabolic diseases, such as tuberculosis and diabetes, continue to converge, necessitating the development of a clearer understanding of the immune and endocrine interactions that occur in the lung. Research in bacterial respiratory infections is at a critical point, where the limitations in identifying and developing antibiotics is becoming more profound. Hormone receptors on alveolar and immune cells may provide a plethora of targets for host-directed therapy. This review discusses the interactions between the immune and endocrine systems in the lung. We describe hormone receptors currently identified in the lungs, focusing on the effect hormones have on the pulmonary immune response. Altered endocrine responses in the lung affect the balance between pro- and anti-inflammatory immune responses and play a role in the response to infection in the lung. While some hormones, such as leptin, resistin and lipocalin-2 promote pro-inflammatory responses and immune cell infiltration, others including adiponectin and ghrelin reduce inflammation and promote anti-inflammatory cell responses. Furthermore, type 2 diabetes as a major endocrine disease presents with altered immune responses leading to susceptibility to lung infections, such as tuberculosis. A better understanding of these interactions will expand our knowledge of the mechanisms at play in susceptibility to infectious diseases and may reveal opportunities for the development of host-directed therapies.
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Affiliation(s)
- Tariq Webber
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Katharina Ronacher
- Translational Research Institute, Mater Research Institute - The University of Queensland, Brisbane, QLD, Australia
| | - Marli Conradie-Smit
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Léanie Kleynhans
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Chan CW, Chan PH, Lin BF. Folate Deficiency Increased Lipid Accumulation and Leptin Production of Adipocytes. Front Nutr 2022; 9:852451. [PMID: 35548560 PMCID: PMC9083361 DOI: 10.3389/fnut.2022.852451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/18/2022] [Indexed: 12/13/2022] Open
Abstract
Imbalanced dietary habits are closely associated with poor micronutrients status and the development of obesity. Previous studies have shown that serum folate level is decreased in obese individuals. However, whether folate deficiency could result in adiposity is still unclear. The aim of this study was to investigate the effects of dietary folate on lipid accumulation and leptin production using both in vivo and in vitro studies. Male C57BL/6 mice were fed with a diet with (f1) or without (f0) folate in a high-fat (HF) diet containing high-sucrose (HFS-f1, HFS-f0) for 4.5-5 months in Experiment 1, or an HF diet (HF-f1, HF-f0) for 12 months in Experiment 2, or an HF diet containing high-fructose (HFF-f1, HFF-f0) for 12 months in Experiment 3, compared with the normal-fat (NF-f1, NF-f0) diet, respectively. The serum levels of folate and leptin, white adipose tissue (WAT), size of adipocytes, hepatic contents of triglyceride (TG), and cholesterol were measured. In vitro study, TG contents, proinflammatory cytokines, leptin, and expressions of hypoxia-inducible factor (HIF)-1α and lipogenesis-related genes of 3T3-L1 adipocytes cultured with (f1) or without (f0) folate were assayed. The results showed that folate deficiency together with a high-fat diet (HFS-f0, HF-f0, HFF-f0) had higher WAT mass, adipocyte size, serum leptin level, and hepatic TG compared to those of the folate-sufficient groups (HFS-f1, HF-f1, and HFF-f1). Folate deficiency with a high-fat high -sucrose or -fructose diet (HFS-f0, HFF-f0) significantly increased the body weight of the mice. Increased intracellular TG, leptin, monocyte chemotactic protein (MCP)-1 and interleukin (IL)-6 levels, and the expression of Hif1α and lipogenesis-related genes Cebpα, Cebpβ, Acc1, Fasn, and Fabp4 were also detected in folate-deficient 3T3-L1 adipocytes. Our results suggested that folate deficiency increased lipid accumulation and leptin production of adipocytes, and thus, inadequate folate status might be one of the risk factors for adiposity.
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Affiliation(s)
| | | | - Bi-Fong Lin
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
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Chenni A, Cherif FZH, Chenni K, Elius EE, Pucci L, Yahia DA. Effects of Pumpkin ( Cucurbita pepo L.) Seed Protein on Blood Pressure, Plasma Lipids, Leptin, Adiponectin, and Oxidative Stress in Rats with Fructose-Induced Metabolic Syndrome. Prev Nutr Food Sci 2022; 27:78-88. [PMID: 35465120 PMCID: PMC9007700 DOI: 10.3746/pnf.2022.27.1.78] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 01/12/2022] [Accepted: 01/18/2022] [Indexed: 11/21/2022] Open
Abstract
This study evaluates the potential effects of pumpkin seeds protein on blood pressure (BP), plasma adiponectin, leptin levels, and oxidative stress in rats with fructose-induced metabolic syndrome. Twenty four male Wistar albino rats were divided into four groups and fed a 20% casein diet, 20% casein diet supplemented with pumpkin protein, 20% casein diet with 64% D-fructose, or 20% casein diet with pumpkin protein and 64% D-fructose for 8 weeks. Contin-uous fructose feeding induced an increase in plasma insulin/glucose ratio, BP, insulin and glucose, aspartate aminotrans-ferase, alanine aminotransferase (ALT), alkaline phosphatase (ALP), creatinine, urea, and uric acid levels, and a decrease in the liver and muscle glycogen stores. In addition, elevated levels of total cholesterol (TC), triglycerides (TG), and leptin and lowered adiponectin levels were observed in rats fed a fructose-enriched diet. These groups also exhibited lower plasma levels of ascorbic acid and glutathione, higher thiobarbituric acid-reactive substances, hydroperoxide, carbonyl, and nitric oxide in both the liver and kidneys than rats fed the control diet. Interestingly, pumpkin seed protein treatment significantly counteracted alterations induced by fructose improving glucose, insulin, BP, TG, TC, ALT, and ALP levels, increasing liver and muscle glycogen stores, adiponectin level, and adiponectin/leptin ratio, and reducing plasma leptin lev-els. In addition, rats fed pumpkin protein with a high-fructose diet improved oxidative stress in the liver and kidneys. In conclusion, proteins from Cucurbita pepo L. seeds effectively improve metabolic parameters and protect against oxidative stress induced by a high-fructose diet.
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Affiliation(s)
- Abdelkader Chenni
- Department of Biotechnology, Faculty of Nature and Life Sciences, Oran University of Science and Technology-Mohamed Boudiaf, Bir El Djir 31000, Algeria
| | - Fatima Zohr Hamza Cherif
- Department of Biology, Faculty of Nature and Life Sciences, University of Oran1-Ahmed Ben Bella, Oran 31000, Algeria
| | - Karima Chenni
- Biostatistics and Clinical Epidemiology Laboratory, Faculty of Medicine, University of Oran1-Ahmed Ben Bella, Oran 31000, Algeria
| | - Elif Erdogan Elius
- Department of Food Technology, Technical Sciences Vocational School, Mersin University, Mersin 33110, Turkey
| | - Laura Pucci
- Institute of Agricultural Biology and Biotechnology, National Research Council, Pisa 56124, Italy
| | - Dalila Ait Yahia
- Department of Biology, Faculty of Nature and Life Sciences, University of Oran1-Ahmed Ben Bella, Oran 31000, Algeria
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43
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Bhat MH, Kokab N, Bhat JA, Shah PA. Serum leptin levels in acute ischemic stroke patients: Data from a tertiary care institution from Kashmir Valley of Northern India. TURKISH JOURNAL OF NEUROLOGY 2022. [DOI: 10.4274/tnd.2022.33254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Obesity and Leptin Resistance in the Regulation of the Type I Interferon Early Response and the Increased Risk for Severe COVID-19. Nutrients 2022; 14:nu14071388. [PMID: 35406000 PMCID: PMC9002648 DOI: 10.3390/nu14071388] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 02/06/2023] Open
Abstract
Obesity, and obesity-associated conditions such as hypertension, chronic kidney disease, type 2 diabetes, and cardiovascular disease, are important risk factors for severe Coronavirus disease-2019 (COVID-19). The common denominator is metaflammation, a portmanteau of metabolism and inflammation, which is characterized by chronically elevated levels of leptin and pro-inflammatory cytokines. These induce the “Suppressor Of Cytokine Signaling 1 and 3” (SOCS1/3), which deactivates the leptin receptor and also other SOCS1/3 sensitive cytokine receptors in immune cells, impairing the type I and III interferon early responses. By also upregulating SOCS1/3, Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)-2 adds a significant boost to this. The ensuing consequence is a delayed but over-reactive immune response, characterized by high-grade inflammation (e.g., cytokine storm), endothelial damage, and hypercoagulation, thus leading to severe COVID-19. Superimposing an acute disturbance, such as a SARS-CoV-2 infection, on metaflammation severely tests resilience. In the long run, metaflammation causes the “typical western” conditions associated with metabolic syndrome. Severe COVID-19 and other serious infectious diseases can be added to the list of its short-term consequences. Therefore, preventive measures should include not only vaccination and the well-established actions intended to avoid infection, but also dietary and lifestyle interventions aimed at improving body composition and preventing or reversing metaflammation.
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45
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Suau R, Pardina E, Domènech E, Lorén V, Manyé J. The Complex Relationship Between Microbiota, Immune Response and Creeping Fat in Crohn's Disease. J Crohns Colitis 2022; 16:472-489. [PMID: 34528668 DOI: 10.1093/ecco-jcc/jjab159] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the last decade, there has been growing interest in the pathological involvement of hypertrophic mesenteric fat attached to the serosa of the inflamed intestinal segments involved in Crohn's disease [CD], known as creeping fat. In spite of its protective nature, creeping fat harbours an aberrant inflammatory activity which, in an already inflamed intestine, may explain why creeping fat is associated with a greater severity of CD. The transmural inflammation of CD facilitates the interaction of mesenteric fat with translocated intestinal microorganisms, contributing to activation of the immune response. This may be not the only way in which microorganisms alter the homeostasis of this fatty tissue: intestinal dysbiosis may also impair xenobiotic metabolism. All these CD-related alterations have a functional impact on nuclear receptors such as the farnesoid X receptor or the peroxisome proliferator-activated receptor γ, which are implicated in regulation of the immune response, adipogenesis and the maintenance of barrier function, as well as on creeping fat production of inflammatory-associated cells such as adipokines. The dysfunction of creeping fat worsens the inflammatory course of CD and may favour intestinal fibrosis and fistulizing complications. However, our current knowledge of the pathophysiology and pathogenic role of creeping fat is controversial and a better understanding might provide new therapeutic targets for CD. Here we aim to review and update the key cellular and molecular alterations involved in this inflammatory process that link the pathological components of CD with the development of creeping fat.
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Affiliation(s)
- Roger Suau
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain
| | - Eva Pardina
- Biochemistry and Molecular Biomedicine Department, University of Barcelona, Barcelona (Catalonia), Spain
| | - Eugeni Domènech
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain.,Gastroenterology Department, 'Germans Trias i Pujol' University Hospital, Badalona (Catalonia), Spain
| | - Violeta Lorén
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain
| | - Josep Manyé
- IBD Research Group, 'Germans Trias i Pujol' Research Institute (IGTP), Badalona (Catalonia), Spain.,Centro de Investigación Biomédica en Red (CIBER), Madrid, Spain
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Abstract
PURPOSE OF REVIEW In this review, we update the latest findings on the impacts of FA metabolism reprogramming on the phenotypes and functions of immune cells in tumor-related immune responses. We also summarize the combinatorial interventions of FA metabolism, which improve the effects of current immunotherapies. RECENT FINDINGS Multiple studies have shown that either the abnormality in signaling pathways or nutrition competition in the TME can lead to phenotypic reprogramming of FA metabolism and functional changes in tumor-infiltrating immune cells, thereby influencing the therapeutic effects of cancer immunotherapies. Accordingly, regulating FA metabolism in immune cells has emerged and become promising approaches to synergize with immunotherapies. One of the mechanisms behind suboptimal therapeutic effects of immunotherapies is metabolic reprogramming of the TME that impairs immunosuppressive activity. FA metabolism is a crucial process involved in the survival and function of primary immune cells. It is of great significance to explore the feasibility of overcoming FA metabolic barriers to improve cancer immunotherapy.
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47
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Purohit V, Wagner A, Yosef N, Kuchroo VK. Systems-based approaches to study immunometabolism. Cell Mol Immunol 2022; 19:409-420. [PMID: 35121805 PMCID: PMC8891302 DOI: 10.1038/s41423-021-00783-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 09/17/2021] [Indexed: 02/06/2023] Open
Abstract
Technical advances at the interface of biology and computation, such as single-cell RNA-sequencing (scRNA-seq), reveal new layers of complexity in cellular systems. An emerging area of investigation using the systems biology approach is the study of the metabolism of immune cells. The diverse spectra of immune cell phenotypes, sparsity of immune cell numbers in vivo, limitations in the number of metabolites identified, dynamic nature of cellular metabolism and metabolic fluxes, tissue specificity, and high dependence on the local milieu make investigations in immunometabolism challenging, especially at the single-cell level. In this review, we define the systemic nature of immunometabolism, summarize cell- and system-based approaches, and introduce mathematical modeling approaches for systems interrogation of metabolic changes in immune cells. We close the review by discussing the applications and shortcomings of metabolic modeling techniques. With systems-oriented studies of metabolism expected to become a mainstay of immunological research, an understanding of current approaches toward systems immunometabolism will help investigators make the best use of current resources and push the boundaries of the discipline.
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Affiliation(s)
- Vinee Purohit
- Evergrande Center for Immunologic Diseases and Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02141, USA
| | - Allon Wagner
- Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA, 94720, USA
- Center for Computational Biology, University of California, Berkeley, CA, 94720, USA
| | - Nir Yosef
- Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA, 94720, USA
- Center for Computational Biology, University of California, Berkeley, CA, 94720, USA
| | - Vijay K Kuchroo
- Evergrande Center for Immunologic Diseases and Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, 02141, USA.
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48
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Petrescu AD, Grant S, Williams E, An SY, Seth N, Shell M, Amundsen T, Tan C, Nadeem Y, Tjahja M, Weld L, Chu CS, Venter J, Frampton G, McMillin M, DeMorrow S. Leptin Enhances Hepatic Fibrosis and Inflammation in a Mouse Model of Cholestasis. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:484-502. [PMID: 34896073 PMCID: PMC8895426 DOI: 10.1016/j.ajpath.2021.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 10/27/2021] [Accepted: 11/17/2021] [Indexed: 01/09/2023]
Abstract
Leptin is an adipokine with roles in food intake and energy metabolism through its actions on neurons in the hypothalamus. The role of leptin in obesity and cardiovascular disorders is well documented. However, its influence on liver conditions such as cholestasis is poorly understood. The effects of exogenous leptin and leptin-neutralizing antibody on biliary hyperplasia, hepatic fibrosis, and inflammation in the multidrug resistance protein 2 knockout (Mdr2KO) mouse model of cholestasis were assessed by quantifying markers specific for cholangiocytes, activated hepatic stellate cells (HSCs), and cytokines. Serum and hepatic leptin were increased in Mdr2KO mice compared with FVB/NJ (FVBN) controls, and exogenous leptin enhanced biliary hyperplasia and liver fibrosis in Mdr2KO and FVBN mice. Leptin administration increased hepatic expression of C-C motif chemokine ligand 2 and IL-6 in Mdr2KO mice. In contrast, leptin-neutralizing antibody reduced intrahepatic bile duct mass and decreased HSC activation in Mdr2KO mice compared with FVBN controls. Sex-related differences were noted, with female Mdr2KO mice having more leptin than males. In cholangiocytes and LX2 cells in vitro, leptin increased phosphorylated Akt and stimulated cell proliferation. Leptin receptor siRNA and inhibitors of Akt phosphorylation impaired leptin-induced cell proliferation and proinflammatory cytokines. The current data suggest that leptin is abnormally increased in cholestatic mice, and excess leptin increases ductular reaction, hepatic fibrosis, and inflammation via leptin receptor-mediated phosphorylation of Akt in cholangiocytes and HSCs.
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Affiliation(s)
- Anca D Petrescu
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Stephanie Grant
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Elaina Williams
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Su Yeon An
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Nikhil Seth
- Department of Internal Medicine, Baylor Scott & White Health, Temple, Texas
| | - Mark Shell
- Department of Internal Medicine, Baylor Scott & White Health, Temple, Texas
| | - Tyson Amundsen
- Department of Internal Medicine, Baylor Scott & White Health, Temple, Texas
| | - Christopher Tan
- Department of Internal Medicine, Baylor Scott & White Health, Temple, Texas
| | - Yusra Nadeem
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas
| | - Matthew Tjahja
- Department of Internal Medicine, Baylor Scott & White Health, Temple, Texas
| | - Lancaster Weld
- Department of Internal Medicine, Baylor Scott & White Health, Temple, Texas
| | - Christopher S Chu
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Julie Venter
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Gabriel Frampton
- Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas; Central Texas Veterans Health Care System, Temple, Texas
| | - Matthew McMillin
- Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas; Central Texas Veterans Health Care System, Temple, Texas
| | - Sharon DeMorrow
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas; Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas; Central Texas Veterans Health Care System, Temple, Texas.
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49
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Assumpção JAF, Pasquarelli-do-Nascimento G, Duarte MSV, Bonamino MH, Magalhães KG. The ambiguous role of obesity in oncology by promoting cancer but boosting antitumor immunotherapy. J Biomed Sci 2022; 29:12. [PMID: 35164764 PMCID: PMC8842976 DOI: 10.1186/s12929-022-00796-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/07/2022] [Indexed: 12/13/2022] Open
Abstract
Obesity is nowadays considered a pandemic which prevalence's has been steadily increasingly in western countries. It is a dynamic, complex, and multifactorial disease which propitiates the development of several metabolic and cardiovascular diseases, as well as cancer. Excessive adipose tissue has been causally related to cancer progression and is a preventable risk factor for overall and cancer-specific survival, associated with poor prognosis in cancer patients. The onset of obesity features a state of chronic low-grade inflammation and secretion of a diversity of adipocyte-derived molecules (adipokines, cytokines, hormones), responsible for altering the metabolic, inflammatory, and immune landscape. The crosstalk between adipocytes and tumor cells fuels the tumor microenvironment with pro-inflammatory factors, promoting tissue injury, mutagenesis, invasion, and metastasis. Although classically established as a risk factor for cancer and treatment toxicity, recent evidence suggests mild obesity is related to better outcomes, with obese cancer patients showing better responses to treatment when compared to lean cancer patients. This phenomenon is termed obesity paradox and has been reported in different types and stages of cancer. The mechanisms underlying this paradoxical relationship between obesity and cancer are still not fully described but point to systemic alterations in metabolic fitness and modulation of the tumor microenvironment by obesity-associated molecules. Obesity impacts the response to cancer treatments, such as chemotherapy and immunotherapy, and has been reported as having a positive association with immune checkpoint therapy. In this review, we discuss obesity's association to inflammation and cancer, also highlighting potential physiological and biological mechanisms underlying this association, hoping to clarify the existence and impact of obesity paradox in cancer development and treatment.
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Affiliation(s)
| | | | - Mariana Saldanha Viegas Duarte
- Immunology and Tumor Biology Program - Research Coordination, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Martín Hernan Bonamino
- Immunology and Tumor Biology Program - Research Coordination, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
- Vice - Presidency of Research and Biological Collections (VPPCB), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Kelly Grace Magalhães
- Laboratory of Immunology and Inflammation, Department of Cell Biology, University of Brasilia, Brasília, DF, Brazil.
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50
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Leptin in Dental Pulp and Periapical Tissues: A Narrative Review. Int J Mol Sci 2022; 23:ijms23041984. [PMID: 35216099 PMCID: PMC8880140 DOI: 10.3390/ijms23041984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/17/2022] Open
Abstract
Leptin is a non-glycosylated 16 kDa protein synthesized mainly in adipose cells. The main function of leptin is to regulate energy homeostasis and weight control in a central manner. There is increasing evidence that leptin also has systemic effects, acting as a link between innate and acquired immune responses. The expression of leptin and its receptor in human dental pulp and periradicular tissues have already been described, as well as several stimulatory effects of leptin protein expression in dental and periodontal tissues. The aim of this paper was to review and to compile the reported scientific literature on the role and effects of leptin in the dental pulp and periapical tissues. Twelve articles accomplished the inclusion criteria, and a comprehensive narrative review was carried out. Review of the available scientific literature concluded that leptin has the following effects on pulpal and periapical physiology: 1) Stimulates odontogenic differentiation of dental pulp stem cells (DPSCs), 2) Increases the expression of dentin sialophosphoprotein (DSPP) and dentin matrix protein-1 (DMP-1), odontoblastic proteins involved in odontoblastic differentiation and dentin mineralization, 3) Stimulates vascular endothelial growth factor (VEGF) expression in human dental pulp tissue and primary cultured cells of human dental pulp (hDPCs), 4) Stimulates angiogenesis in rat dental pulp cells, and 5) Induces the expression of interleucinas 6 and 8 in human periodontal ligament cells (hPDLCs). There is evidence which suggests that leptin is implicated in the dentin mineralization process and in pulpal and periapical inflammatory and reparative responses.
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