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Preda A, Carbone F, Tirandi A, Montecucco F, Liberale L. Obesity phenotypes and cardiovascular risk: From pathophysiology to clinical management. Rev Endocr Metab Disord 2023; 24:901-919. [PMID: 37358728 PMCID: PMC10492705 DOI: 10.1007/s11154-023-09813-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/31/2023] [Indexed: 06/27/2023]
Abstract
Obesity epidemic reached the dimensions of a real global health crisis with more than one billion people worldwide living with obesity. Multiple obesity-related mechanisms cause structural, functional, humoral, and hemodynamic alterations with cardiovascular (CV) deleterious effects. A correct assessment of the cardiovascular risk in people with obesity is critical for reducing mortality and preserving quality of life. The correct identification of the obesity status remains difficult as recent evidence suggest that different phenotypes of obesity exist, each one associated with different degrees of CV risk. Diagnosis of obesity cannot depend only on anthropometric parameters but should include a precise assessment of the metabolic status. Recently, the World Heart Federation and World Obesity Federation provided an action plan for management of obesity-related CV risk and mortality, stressing for the instauration of comprehensive structured programs encompassing multidisciplinary teams. In this review we aim at providing an updated summary regarding the different obesity phenotypes, their specific effects on CV risk and differences in clinical management.
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Affiliation(s)
| | - Federico Carbone
- IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
| | - Amedeo Tirandi
- IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
| | - Fabrizio Montecucco
- IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy.
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy.
| | - Luca Liberale
- IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
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202
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Sciarretta F, Ceci V, Tiberi M, Zaccaria F, Li H, Zhou ZY, Sun Q, Konja D, Matteocci A, Bhusal A, Verri M, Fresegna D, Balletta S, Ninni A, Di Biagio C, Rosina M, Suk K, Centonze D, Wang Y, Chiurchiù V, Aquilano K, Lettieri-Barbato D. Lipocalin-2 promotes adipose-macrophage interactions to shape peripheral and central inflammatory responses in experimental autoimmune encephalomyelitis. Mol Metab 2023; 76:101783. [PMID: 37517520 PMCID: PMC10448472 DOI: 10.1016/j.molmet.2023.101783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/01/2023] Open
Abstract
OBJECTIVE Accumulating evidence suggests that dysfunctional adipose tissue (AT) plays a major role in the risk of developing multiple sclerosis (MS), the most common immune-mediated and demyelinating disease of the central nervous system. However, the contribution of adipose tissue to the etiology and progression of MS is still obscure. This study aimed at deciphering the responses of AT in experimental autoimmune encephalomyelitis (EAE), the best characterized animal model of MS. RESULTS AND METHODS We observed a significant AT loss in EAE mice at the onset of disease, with a significant infiltration of M1-like macrophages and fibrosis in the AT, resembling a cachectic phenotype. Through an integrative and multilayered approach, we identified lipocalin2 (LCN2) as the key molecule released by dysfunctional adipocytes through redox-dependent mechanism. Adipose-derived LCN2 shapes the pro-inflammatory macrophage phenotype, and the genetic deficiency of LCN2 specifically in AT reduced weight loss as well as inflammatory macrophage infiltration in spinal cord in EAE mice. Mature adipocytes downregulating LCN2 reduced lipolytic response to inflammatory stimuli (e.g. TNFα) through an ATGL-mediated mechanism. CONCLUSIONS Overall data highlighted a role LCN2 in exacerbating inflammatory phenotype in EAE model, suggesting a pathogenic role of dysfunctional AT in MS.
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Affiliation(s)
| | - Veronica Ceci
- PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy; Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marta Tiberi
- Laboratory of Resolution of Neuroinflammation, IRCCS Santa Lucia Foundation, 00179 Rome, Italy
| | - Fabio Zaccaria
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Haoyun Li
- The State Key Laboratory of Pharmaceutical Biotechnology; Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR, China
| | - Zhong-Yan Zhou
- The State Key Laboratory of Pharmaceutical Biotechnology; Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR, China; Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiyang Sun
- The State Key Laboratory of Pharmaceutical Biotechnology; Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR, China
| | - Daniels Konja
- The State Key Laboratory of Pharmaceutical Biotechnology; Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR, China
| | - Alessandro Matteocci
- Laboratory of Resolution of Neuroinflammation, IRCCS Santa Lucia Foundation, 00179 Rome, Italy; PhD program in Immunology, Molecular Medicine and Applied biotechnologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Anup Bhusal
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Martina Verri
- Pathology Unit, University Hospital Campus Bio-Medico of Rome, 00128 Rome, Italy
| | - Diego Fresegna
- Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, 00163 Rome, Italy
| | - Sara Balletta
- Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology, IRCCS Neuromed, 86077 Pozzilli, Italy
| | - Andrea Ninni
- PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy; Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Claudia Di Biagio
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marco Rosina
- Neurology Unit, Fondazione PTV Policlinico Tor Vergata, Viale Oxford 81, 00133 Rome, Italy
| | - Kyoungho Suk
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; Brain Science and Engineering Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Diego Centonze
- Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology, IRCCS Neuromed, 86077 Pozzilli, Italy
| | - Yu Wang
- The State Key Laboratory of Pharmaceutical Biotechnology; Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR, China
| | - Valerio Chiurchiù
- Laboratory of Resolution of Neuroinflammation, IRCCS Santa Lucia Foundation, 00179 Rome, Italy; Institute of Translational Pharmacology, National Research Council, 00133 Rome, Italy
| | - Katia Aquilano
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Daniele Lettieri-Barbato
- IRCCS, Fondazione Santa Lucia, 00179 Rome, Italy; Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy.
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203
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Tantuway V, Thomas W, Parikh MB, Sharma R, Jeyaraman N, Jeyaraman M. Clinical Outcome of Minimally Manipulated, Mechanically Isolated Autologous Adipose Tissue-Derived Stromal Vascular Fraction (Sahaj Therapy®) in Knee Osteoarthritis-Randomized Controlled Trial. Indian J Orthop 2023; 57:1646-1658. [PMID: 37766954 PMCID: PMC10519910 DOI: 10.1007/s43465-023-00981-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023]
Abstract
Introduction Regenerative therapy has shown promising results in the treatment of osteoarthritis (OA) knee with Kellgren-Lawrence (KL) Grades I-III. We compared the safety, efficacy, functional, and clinical outcomes of intra-articular implantation of autologous adipose tissue-derived stromal vascular fraction (SVF) isolated using direct ultrasonic cavitation (Sahaj therapy-Cell Innovation Patented Technology) and saline injection in knee osteoarthritis. Materials and Methods The present prospective observational study was conducted over 3 years. We enrolled 120 patients in our study, where four patients got excluded as they did not meet the inclusion criteria. The remaining 116 patients were randomized into two groups, one with autologous adipose tissue-derived SVF and the other group with saline injection. A comparison of mean KOOS and VAS scores at different follow-ups was done using Paired 't' test. A p value of < 0.05 was considered significant. Results The results show that the SVF group had significantly higher KOOS scores (78.49 ± 6.54 in the SVF group vs 59.19 ± 5.14 in the saline group), respectively (p < 0.001). Similarly, the SVF group had significantly lesser VAS scores (3.17 ± 0.94 in the SVF group vs 3.89 ± 1.04 in the saline group), respectively (p < 0.001). Conclusions Autologous adipose tissue-derived SVF is a better choice for treating knee osteoarthritis. For individuals with degenerative osteoarthritis, autologous SVF grafting in the same surgical procedure is an innovative and promising treatment modality. Even after 3 years of follow-up, the study participants with OA knee have shown a good clinical and functional outcome.
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Affiliation(s)
- Vinay Tantuway
- Department of Orthopaedics & Traumatology, Index Medical College Hospital and Research Centre, Indore, Madhya Pradesh India
| | - Wayne Thomas
- Department of Tumor Immunology, The University of Newcastle, Callaghan, Australia
| | - Mittal B. Parikh
- Department of Orthopaedics, Navjivan Hospital, Ahmedabad, Gujarat India
| | - Raj Sharma
- Sahaj Regenerative Cell Therapeutics, Indore, Madhya Pradesh India
| | - Naveen Jeyaraman
- Department of Orthopaedics, ACS Medical College and Hospital, Dr MGR Educational and Research Institute, Chennai, Tamil Nadu India
| | - Madhan Jeyaraman
- Department of Orthopaedics, ACS Medical College and Hospital, Dr MGR Educational and Research Institute, Chennai, Tamil Nadu India
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204
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Park J, Kim M, Shin H, Ahn H, Park YK. Low-Molecular Collagen Peptide Supplementation and Body Fat Mass in Adults Aged ≥ 50 Years: A Randomized, Double-Blind, Placebo-Controlled Trial. Clin Nutr Res 2023; 12:245-256. [PMID: 37969940 PMCID: PMC10641330 DOI: 10.7762/cnr.2023.12.4.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/17/2023] Open
Abstract
A randomized, double-blind, placebo-controlled trial was conducted to confirm whether collagen peptide supplementation for 12 week has a beneficial effect on body fat control in older adults at a daily physical activity level. Participants were assigned to either the collagen group (15 g/day of collagen peptide) or the placebo group (placebo drink). Body composition was measured by bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DEXA). In total, 74 participants (collagen group, n = 37; placebo group, n = 37) were included in the final analysis. The collagen group showed a significant reduction in total body fat mass compared with the placebo group, as evidenced by both BIA (p = 0.021) and DEXA (p = 0.041) measurements. Body fat mass and percent body fat of the whole body and trunk reduced at 12 weeks compared with baseline only in the collagen group (whole body: body fat mass, p = 0.002; percent body fat, p = 0.002; trunk: body fat mass, p = 0.001; percent body fat, p = 0.000). Total fat mass change (%) (collagen group, -0.49 ± 3.39; placebo group, 2.23 ± 4.20) showed a significant difference between the two groups (p = 0.041). Physical activity, dietary intake, and biochemical parameters showed no significant difference between the groups. The results confirmed that collagen peptide supplementation had a beneficial effect on body fat reduction in older adults aged ≥ 50 years with daily physical activity level. Thus, collagen peptide supplementation has a positive effect on age-related changes.
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Affiliation(s)
- Jeongbin Park
- Department of Medical Nutrition, Graduate School of East-West Medical Nutrition, Kyung Hee University, Yongin 17104, Korea
| | - Minji Kim
- Department of Medical Nutrition, Graduate School of East-West Medical Nutrition, Kyung Hee University, Yongin 17104, Korea
| | - Hyeri Shin
- Department of Gerontology, AgeTech-Service Convergence Major, Kyung Hee University, Yongin 17104, Korea
| | - Hyejin Ahn
- Department of Gerontology, AgeTech-Service Convergence Major, Kyung Hee University, Yongin 17104, Korea
| | - Yoo Kyoung Park
- Department of Medical Nutrition, Graduate School of East-West Medical Nutrition, Kyung Hee University, Yongin 17104, Korea
- Department of Medical Nutrition, AgeTech-Service Convergence Major, Kyung Hee University, Yongin 17104, Korea
- Department of Food Innovation and Health, Graduate School of East-West Medical Nutrition, Kyung Hee University, Seoul 02453, Korea
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205
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Dar ER, Gugjoo MB, Farooq F, Nazir T, Shah SA, Ahmad SM, Shah RA, Ahmad RA, Dar SH, Makhdoomi DM. Mesenchymal stem cells derived from bone marrow and adipose tissue for repairing acute sciatic nerve injury in a rabbit model. Tissue Cell 2023; 84:102162. [PMID: 37487256 DOI: 10.1016/j.tice.2023.102162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/08/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023]
Abstract
Peripheral nerve injury is one of the common disabling clinical conditions and around 50% of the cases end up in permanent impairment. Due to the lack of effective treatment options regenerative medicine employing stem cells is being evaluated. The presented study evaluated and compared regeneration potential of mesenchymal stem cells (MSCs) derived from bone marrow (BM) and adipose tissue (AD) in acute rabbit sciatic nerve injury (axonotmesis) model. A total of n = 54 grey giant rabbits were made subject of the study and divided equally into 3 groups: Control, BM-MSCs in Collagen I and AD-MSCs in Collagen I as per the treatment given. Iliac crest BM and omental AD was harvested from the same donor for isolation and culture of MSCs. The repair of sciatic nerve injury was evaluated on days 60 and 90. The clinical and histopathological scores and SEM morphology was better in cell treated groups as compared to the control. Morphology and histological studies revealed injured nerve in different levels of regenerative process. Gene expression was more than double for N-Cadherin in cell treated groups as compared to the control, especially at day 60. Between cell treated groups, BM-MSCs group showed better response as compared to the AD-MSCs, although statistically non-significant (p > 0.05). Incomplete nerve regeneration observed under various diagnostic parameters was in compliance to the incomplete clinical recovery at day 90. It was concluded that MSCs may improve sciatic nerve healing but fall short of complete regeneration at day 90, although BM-MSCs may have an edge over AD-MSCs.
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Affiliation(s)
- Ejaz Rasool Dar
- Surgery & Radiology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Mudasir Bashir Gugjoo
- Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India.
| | - Fajar Farooq
- Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Tahir Nazir
- Livestock Products Technology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Showkat Ahmad Shah
- Veterinary Pathology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Syed Mudasir Ahmad
- Animal Biotechnology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Riaz Ahmad Shah
- Animal Biotechnology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Raja Aijaz Ahmad
- Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Shahid Hussian Dar
- Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
| | - Dil Mohammad Makhdoomi
- Surgery & Radiology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Shuhama, India
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206
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Chen Y, Chen Z, Tan X, Zhang Q, Zhou Y, Yuan H, Jiang L. Role of body composition and metabolic parameters extracted from baseline 18F-FDG PET/CT in patients with diffuse large B-cell lymphoma. Ann Hematol 2023; 102:2779-2789. [PMID: 37530853 DOI: 10.1007/s00277-023-05379-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/19/2023] [Indexed: 08/03/2023]
Abstract
This study aimed to clarify the clinical and prognostic role of body composition and metabolic parameters extracted from baseline 18F-FDG PET/CT in patients with diffuse large B-cell lymphoma (DLBCL). We retrospectively collected the clinicopathological and 18F-FDG PET/CT parameters of 181 DLBCL patients. The indexes of skeletal muscle, subcutaneous adipose tissue, and visceral adipose tissue were calculated using the area measured at the 3rd lumbar level normalized for height. Additionally, the metabolic activity of corresponding muscle and adipose tissue, and maximum standardized uptake value (SUVmax), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) of all lesions were measured. Survival endpoints included progression-free survival (PFS) and overall survival (OS). We identified 75 (41.4%) patients with low skeletal muscle index (sarcopenia), presenting risk factors including male, high β2-microglobulin, low BMI, high visceral adipose tissue index, low SUVmax of skeletal muscle, and high SUVmax of visceral adipose tissue. Male, low BMI, low visceral adipose tissue index, and high SUVmax of subcutaneous adipose tissue were risk factors for low subcutaneous adipose tissue index diagnosed in 105 (58.0%) patients. In total, 132 (79.2%) patients represented low visceral adipose tissue index, associated with younger age, B symptoms, and low BMI. Eastern Cooperative Oncology Group (ECOG) status, sarcopenia, and visceral adipose tissue index were found independently predictive of PFS and OS, while β2-microglobulin was independently predictive of OS. In conclusion, body composition indexes were correlated with both clinical characteristics and 18F-FDG PET/CT metabolic parameters, significantly impacting survival, such that sarcopenia and high visceral adipose tissue index were powerful predictors of poor DLBCL outcomes.
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Affiliation(s)
- Yang Chen
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China
| | - Zhijian Chen
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China
| | - Xiaoyue Tan
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China
| | - Qing Zhang
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China
| | - Yongrong Zhou
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China
| | - Hui Yuan
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China.
| | - Lei Jiang
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan Er Road, Guangzhou, 510080, China.
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangzhou, China.
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207
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Tsagkaraki E, Guilherme A, Nicoloro SM, Kelly M, Lifshitz LM, Wang H, Min K, Rowland LA, Santos KB, Wetoska N, Friedline RH, Maitland SA, Chen M, Weinstein LS, Wolfe SA, Kim JK, Czech MP. Crosstalk between corepressor NRIP1 and cAMP signaling on adipocyte thermogenic programming. Mol Metab 2023; 76:101780. [PMID: 37482187 PMCID: PMC10410517 DOI: 10.1016/j.molmet.2023.101780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/25/2023] Open
Abstract
OBJECTIVES Nuclear receptor interacting protein 1 (NRIP1) suppresses energy expenditure via repression of nuclear receptors, and its depletion markedly elevates uncoupled respiration in mouse and human adipocytes. We tested whether NRIP1 deficient adipocytes implanted into obese mice would enhance whole body metabolism. Since β-adrenergic signaling through cAMP strongly promotes adipocyte thermogenesis, we tested whether the effects of NRIP1 knock-out (NRIP1KO) require the cAMP pathway. METHODS NRIP1KO adipocytes were implanted in recipient high-fat diet (HFD) fed mice and metabolic cage studies conducted. The Nrip1 gene was disrupted by CRISPR in primary preadipocytes isolated from control vs adipose selective GsαKO (cAdGsαKO) mice prior to differentiation to adipocytes. Protein kinase A inhibitor was also used. RESULTS Implanting NRIP1KO adipocytes into HFD fed mice enhanced whole-body glucose tolerance by increasing insulin sensitivity, reducing adiposity, and enhancing energy expenditure in the recipients. NRIP1 depletion in both control and GsαKO adipocytes was equally effective in upregulating uncoupling protein 1 (UCP1) and adipocyte beiging, while β-adrenergic signaling by CL 316,243 was abolished in GsαKO adipocytes. Combining NRIP1KO with CL 316,243 treatment synergistically increased Ucp1 gene expression and increased the adipocyte subpopulation responsive to beiging. Estrogen-related receptor α (ERRα) was dispensable for UCP1 upregulation by NRIPKO. CONCLUSIONS The thermogenic effect of NRIP1 depletion in adipocytes causes systemic enhancement of energy expenditure when such adipocytes are implanted into obese mice. Furthermore, NRIP1KO acts independently but cooperatively with the cAMP pathway in mediating its effect on adipocyte beiging.
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Affiliation(s)
- Emmanouela Tsagkaraki
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA.
| | - Adilson Guilherme
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Sarah M Nicoloro
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Mark Kelly
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Lawrence M Lifshitz
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Hui Wang
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Kyounghee Min
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Leslie A Rowland
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Kaltinaitis B Santos
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Nicole Wetoska
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Randall H Friedline
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA; Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Stacy A Maitland
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Min Chen
- Metabolic Diseases Branch, NIDDK, NIH, Bethesda, MD, 20892-1752, USA
| | - Lee S Weinstein
- Metabolic Diseases Branch, NIDDK, NIH, Bethesda, MD, 20892-1752, USA
| | - Scot A Wolfe
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA; Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Jason K Kim
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA; Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Michael P Czech
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA.
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208
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Chávez-Guevara IA, Amaro-Gahete FJ, Osuna-Prieto FJ, Labayen I, Aguilera CM, Ruiz JR. The role of sex in the relationship between fasting adipokines levels, maximal fat oxidation during exercise, and insulin resistance in young adults with excess adiposity. Biochem Pharmacol 2023; 216:115757. [PMID: 37598975 DOI: 10.1016/j.bcp.2023.115757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
AIM Previous evidence suggest that a sexual dimorphism in exercise fat oxidation and adipokines levels may explain a lower risk of cardio-metabolic disorders in women. Therefore, we investigated the role of sex in the relationship between adipokines levels, maximal fat oxidation (MFO) during exercise and insulin resistance. METHODS Fifty young adults with excess adiposity (31 women; body fat: 38.7 ± 5.3%) were included in this study. The fasting levels of leptin, adiponectin, glucose and insulin were determined from blood samples and the homeostatic model assessment of insulin resistance index (HOMA-IR) subsequently calculated. Body fat percentage and visceral adipose tissue (VAT) were assessed through dual-energy X-ray absorptiometry whereas MFO was estimated during an incremental-load exercise test after an overnight fasting through indirect calorimetry. RESULTS Men had lower levels of body fat (d = 1.80), adiponectin (d = 1.35), leptin (d = 0.43) and MFO (d = 1.25) than women. Conversely, men showed higher VAT (d = 0.85) and fasting glucose levels (d = 0.89). No sex differences were observed in HOMA-IR (d = 0.34). Adipokines levels were not associated with MFO in both sexes (r < 0.30), whereas adiponectin levels were inversely related with HOMA-IR in both men (r = -0.58) and women (r = -0.50). Leptin concentration was associated to HOMA-IR only in men (r = 0.41), while no statistically significant relationships were observed between MFO and HOMA-IR in both sexes (r < 0.44). CONCLUSION Insulin resistance was similar between sexes regardless of superior levels of adipokines and MFO during exercise in women. Therefore, adiponectin and leptin may regulate glucose homeostasis without altering whole body fat oxidation rate during exercise.
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Affiliation(s)
- Isaac A Chávez-Guevara
- Department of Chemical Sciences, Biomedical Sciences Institute, Autonomous University of Ciudad Juarez, Chihuahua, Mexico
| | - Francisco J Amaro-Gahete
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Instituto de Investigación Biosanitaria, ibs. Granada, Granada, Spain
| | - Francisco J Osuna-Prieto
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain; Research Institute in Health Pere Virgili, University Hospital of Tarragona Joan XXIII, Tarragona, Spain
| | - Idoia Labayen
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Institute for Sustainability and Food Chain Innovation (ISFOOD), University of Navarra, Pamplona, Spain; Navarra Institute for Health Research, IdiSNA, Pamplona, Spain; Department of Health Sciences, Public University of Navarra, Campus de Arrosadia, Pamplona, Spain
| | - Concepcion M Aguilera
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Instituto de Investigación Biosanitaria, ibs. Granada, Granada, Spain; Department of Biochemistry and Molecular Biology II, Faculty of Pharmacy, University of Granada, Granada, Spain; José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Biomedical Research Centre (CIBM), University of Granada, Granada, Spain
| | - Jonatan R Ruiz
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Instituto de Investigación Biosanitaria, ibs. Granada, Granada, Spain.
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Cheng S, Ni J, Deng W, Wang P. Diagnostic Ability of Perivascular Fat Attenuation Index in Predicting Atherosclerotic Plaque Formation Proximal to Myocardial Bridging of the Left Anterior Descending Artery within 3 Years. Acad Radiol 2023; 30:2234-2242. [PMID: 37474348 DOI: 10.1016/j.acra.2023.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/22/2023]
Abstract
RATIONALE AND OBJECTIVES This study was designed to investigate the association between the perivascular fat attenuation index (FAI) and atherosclerotic plaque formation proximal to myocardial bridging (MB) of the left anterior descending artery (LAD) within 3 years. MATERIALS AND METHODS LAD-MB patients who underwent coronary computed tomography angiography at least twice between January 2016 and December 2022 were retrospectively included in this study. In total, 99 LAD-MB patients were included in the study. Based on the formation of atherosclerotic plaques proximal to LAD-MB during follow-up, the patients were classified into two groups: LAD-MB with plaque formation and LAD-MB without plaque formation within 3 years. The anatomical features, clinical factors, and proximal perivascular FAI of LAD-MB were measured and recorded. The association of the previously mentioned factors with the presence of atherosclerotic plaque proximal to LAD-MB was determined. RESULTS The results showed that MB length, MB stenosis, and the perivascular FAI were significant predictors of the formation of atherosclerotic plaques proximal to LAD-MB. The area under the curve of the combined predictive model incorporating MB length, MB stenosis, and the perivascular FAI was 0.901(95% confidence interval: 0.824-0.952), with higher diagnostic performance than any other single parameter (all P < 0.05). Moreover, dynamic changes in the perivascular FAI of the vascular segments proximal to LAD-MB were higher in high-risk plaques than in non-high-risk plaques (P = 0.003). CONCLUSION The combined use of the perivascular FAI, MB length, and MB stenosis may enable prediction of the probability of atherosclerotic plaque formation proximal to LAD-MB within 3 years. Dynamic changes in perivascular FAI were associated with the vulnerability of plaques proximal to LAD-MB.
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Affiliation(s)
- Shuihua Cheng
- Department of Radiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China (S.C., J.N., P.W.)
| | - Jiong Ni
- Department of Radiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China (S.C., J.N., P.W.)
| | - Weiwei Deng
- CT Clinical Science, Philips Healthcare, Shanghai, China (W.D.)
| | - Peijun Wang
- Department of Radiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China (S.C., J.N., P.W.).
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210
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Polyzos SA, Vachliotis ID, Mantzoros CS. Sarcopenia, sarcopenic obesity and nonalcoholic fatty liver disease. Metabolism 2023; 147:155676. [PMID: 37544590 DOI: 10.1016/j.metabol.2023.155676] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/08/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD), sarcopenia and sarcopenic obesity (SO) are highly prevalent conditions that may coexist, especially in the aging population, without any approved pharmacologic treatment for all of them. There are multiple pathophysiologic mechanisms suggested to explain an association between NAFLD and sarcopenia or SO, including alterations in the adipokines, cytokines, hepatokines and myokines, which may interplay with other factors, such as aging, diet and physical inactivity. In clinical terms, most observational studies support an association between NAFLD and sarcopenia or SO; importantly, there are few cohort studies indicating higher mortality in patients with NAFLD and sarcopenia. Their association also bears some treatment considerations: for example, pioglitazone or vitamin E, suggested as off label treatment for selected patients with nonalcoholic steatohepatitis, may be recommended in the coexistence of sarcopenia or SO, since limited evidence did not show adverse effects of them on sarcopenia and abdominal obesity. In this review, evidence linking sarcopenia and SO with NAFLD is summarized, with a special focus on clinical data. A synopsis of the major pathophysiological links between NAFLD and sarcopenia/SO is initially presented, followed by selected clinical studies and, finally, treatment considerations in patients with NAFLD and sarcopenia or SO are discussed.
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Affiliation(s)
- Stergios A Polyzos
- First Department of Pharmacology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Ilias D Vachliotis
- First Department of Pharmacology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christos S Mantzoros
- Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Internal Medicine, Boston VA Healthcare System, Harvard Medical School, Boston, MA, USA
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211
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Ruggiero AD, Vemuri R, Blawas M, Long M, DeStephanis D, Williams AG, Chen H, Justice JN, Macauley SL, Day SM, Kavanagh K. Long-term dasatinib plus quercetin effects on aging outcomes and inflammation in nonhuman primates: implications for senolytic clinical trial design. GeroScience 2023; 45:2785-2803. [PMID: 37261678 PMCID: PMC10643765 DOI: 10.1007/s11357-023-00830-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/17/2023] [Indexed: 06/02/2023] Open
Abstract
Cellular senescence increases with aging and results in secretion of pro-inflammatory factors that induce local and systemic tissue dysfunction. We conducted the first preclinical trial in a relevant middle-aged nonhuman primate (NHP) model to allow estimation of the main translatable effects of the senolytic combination dasatinib (D) and quercetin (Q), with and without caloric restriction (CR). A multi-systemic survey of age-related changes, including those on immune cells, adipose tissue, the microbiome, and biomarkers of systemic organ and metabolic health are reported. Age-, weight-, sex-, and glycemic control-matched NHPs (D + Q, n = 9; vehicle [VEH] n = 7) received two consecutive days of D + Q (5 mg/kg + 50 mg/kg) monthly for 6 months, where in month six, a 10% CR was implemented in both D + Q and VEH NHPs to induce equal weight reductions. D + Q reduced senescence marker gene expressions in adipose tissue and circulating PAI-1 and MMP-9. Improvements were observed in immune cell types with significant anti-inflammatory shifts and reductions in microbial translocation biomarkers, despite stable microbiomes. Blood urea nitrogen showed robust improvements with D + Q. CR resulted in significant positive body composition changes in both groups with further improvement in immune cell profiles and decreased GDF15 (p = 0.05), and the interaction of D + Q and CR dramatically reduced glycosylated hemoglobin A1c (p = 0.03). This work indicates that 6 months of intermittent D + Q exposure is safe and may combat inflammaging via immune benefits and improved intestinal barrier function. We also saw renal benefits, and with CR, improved metabolic health. These data are intended to provide direction for the design of larger controlled intervention trials in older patients.
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Affiliation(s)
- Alistaire D Ruggiero
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Ravichandra Vemuri
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Megan Blawas
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Masha Long
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Darla DeStephanis
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Abigail G Williams
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Haiying Chen
- Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Jamie N Justice
- Section of Gerontology and Geriatric Medicine, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Shannon L Macauley
- Section of Gerontology and Geriatric Medicine, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Steven M Day
- Section of Gerontology and Geriatric Medicine, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Kylie Kavanagh
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA.
- College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia.
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212
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Hongfang G, Khan R, El-Mansi AA. Bioinformatics Analysis of miR-181a and Its Role in Adipogenesis, Obesity, and Lipid Metabolism Through Review of Literature. Mol Biotechnol 2023:10.1007/s12033-023-00894-w. [PMID: 37773313 DOI: 10.1007/s12033-023-00894-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/04/2023] [Indexed: 10/01/2023]
Abstract
The miRNAs regulate various biological processes in the mammalian body system. The role of miR-181a in the development, progression, and expansion of cancers is well-documented. However, the role of miR-181a in adipogenesis; lipid metabolism; obesity; and obesity-related issues such as diabetes mellitus needs to be explored. Therefore, in the present study, the literature was searched and bioinformatics tools were applied to explore the role of miR-181a in adipogenesis. The list of adipogenic and lipogenic target genes validated through different publications were extracted and compiled. The network and functional analysis of these target genes was performed through in-silico analysis. The mature sequence of miR-181a of different species were extracted from and were found highly conserved among the curated species. Additionally, we also used various bioinformatics tools such as target gene extraction from Targetscan, miRWalk, and miRDB, and the list of the target genes from these different databases was compared, and common target genes were predicted. These common target genes were further subjected to the enrichment score and KEGG pathways analysis. The enrichment score of the vital KEGG pathways of the target genes is the key regulator of adipogenesis, lipogenesis, obesity, and obesity-related syndromes in adipose tissues. Therefore, the information presented in the current review will explore the regulatory roles of miR-181a in fat tissues and its associated functions and manifestations.
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Affiliation(s)
- Guo Hongfang
- Medical College of Xuchang University, No.1389, Xufan Road, Xuchang City, 461000, Henan Province, People's Republic of China
| | - Rajwali Khan
- Department of Livestock Management, Breeding and Genetics, The University of Agriculture, Peshawar, 25130, Pakistan.
| | - Ahmed A El-Mansi
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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213
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Alvarez-Artime A, Garcia-Soler B, Gonzalez-Menendez P, Fernandez-Vega S, Cernuda-Cernuda R, Hevia D, Mayo JC, Sainz RM. Castration promotes the browning of the prostate tumor microenvironment. Cell Commun Signal 2023; 21:267. [PMID: 37770940 PMCID: PMC10536697 DOI: 10.1186/s12964-023-01294-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/23/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND Adipose tissue has gained attention due to its potential paracrine role. Periprostatic adipose tissue surrounds the prostate and the prostatic urethra, and it is an essential player in prostate cancer progression. Since obesity is directly related to human tumor progression, and adipose tissue depots are one of the significant components of the tumor microenvironment, the molecular mediators of the communication between adipocytes and epithelial cells are in the spotlight. Although periprostatic white adipose tissue contributes to prostate cancer progression, brown adipose tissue (BAT), which has beneficial effects in metabolic pathologies, has been scarcely investigated concerning cancer progression. Given that adipose tissue is a target of androgen signaling, the actual role of androgen removal on the periprostatic adipose tissue was the aim of this work. METHODS Surgical castration of the transgenic adenocarcinoma of the mouse prostate (TRAMP) was employed. By histology examination and software analysis, WAT and BAT tissue was quantified. 3T3-like adipocytes were used to study the role of Casodex® in modifying adipocyte differentiation and to investigate the function of the secretome of adipocytes on the proliferation of androgen-dependent and independent prostate cancer cells. Finally, the role of cell communication was assayed by TRAMP-C1 xenograft implanted in the presence of 3T3-like adipocytes. RESULTS Androgen removal increases brown/beige adipose tissue in the fat immediately surrounding the prostate glands of TRAMP mice, concomitant with an adjustment of the metabolism. Castration increases body temperature, respiratory exchange rate, and energy expenditure. Also, in vitro, it is described that blocking androgen signaling by Casodex® increases the uncoupling protein 1 (UCP1) marker in 3T3-like adipocytes. Finally, the effect of brown/beige adipocyte secretome was studied on the proliferation of prostate cancer cells in vivo and in vitro. The secretome of brown/beige adipocytes reduces the proliferation of prostate cancer cells mediated partly by the secretion of extracellular vesicles. CONCLUSIONS Consequently, we concluded that hampering androgen signaling plays a crucial role in the browning of the periprostatic adipose tissue. Also, the presence of brown adipocytes exhibits the opposite effect to that of white adipocytes in vitro regulating processes that govern the mechanisms of cell proliferation of prostate cancer cells. And finally, promoting the browning of adipose tissue in the periprostatic adipose tissue might be a way to handle prostate cancer cell progression. Video Abstract.
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Affiliation(s)
- Alejandro Alvarez-Artime
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain
| | - Belen Garcia-Soler
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain
| | - Pedro Gonzalez-Menendez
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain
| | - Sheila Fernandez-Vega
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain
| | - Rafael Cernuda-Cernuda
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain
| | - David Hevia
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain
| | - Juan C Mayo
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain.
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain.
| | - Rosa M Sainz
- Departamento de Morfologia y Biologia Celular, Facultad de Medicina, University of Oviedo, Julian Claveria 6, 33006, Oviedo, Spain.
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Hospital Universitario, 33011, Oviedo, Spain.
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Yamaguchi S, Kojima D, Iqbal T, Kosugi S, Franczyk MP, Qi N, Sasaki Y, Yaku K, Kaneko K, Kinouchi K, Itoh H, Hayashi K, Nakagawa T, Yoshino J. Adipocyte NMNAT1 expression is essential for nuclear NAD + biosynthesis but dispensable for regulating thermogenesis and whole-body energy metabolism. Biochem Biophys Res Commun 2023; 674:162-169. [PMID: 37421924 DOI: 10.1016/j.bbrc.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/10/2023]
Abstract
Nicotinamide adenine dinucleotide (NAD+) functions as an essential cofactor regulating a variety of biological processes. The purpose of the present study was to determine the role of nuclear NAD+ biosynthesis, mediated by nicotinamide mononucleotide adenylyltransferase 1 (NMNAT1), in thermogenesis and whole-body energy metabolism. We first evaluated the relationship between NMNAT1 expression and thermogenic activity in brown adipose tissue (BAT), a key organ for non-shivering thermogenesis. We found that reduced BAT NMNAT1expression was associated with inactivation of thermogenic gene program induced by obesity and thermoneutrality. Next, we generated and characterized adiponectin-Cre-driven adipocyte-specific Nmnat1 knockout (ANMT1KO) mice. Loss of NMNAT1 markedly reduced nuclear NAD+ concentration by approximately 70% in BAT. Nonetheless, adipocyte-specific Nmnat1 deletion had no impact on thermogenic (rectal temperature, BAT temperature and whole-body oxygen consumption) responses to β-adrenergic ligand norepinephrine administration and acute cold exposure, adrenergic-mediated lipolytic activity, and metabolic responses to obesogenic high-fat diet feeding. In addition, loss of NMNAT1 did not affect nuclear lysine acetylation or thermogenic gene program in BAT. These results demonstrate that adipocyte NMNAT1 expression is required for maintaining nuclear NAD+ concentration, but not for regulating BAT thermogenesis or whole-body energy homeostasis.
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Affiliation(s)
- Shintaro Yamaguchi
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan; Center for Human Nutrition, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Daiki Kojima
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tooba Iqbal
- Department of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Toyama, 930-0194, Japan
| | - Shotaro Kosugi
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Michael P Franczyk
- Center for Human Nutrition, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Nathan Qi
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Yo Sasaki
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Keisuke Yaku
- Department of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Toyama, 930-0194, Japan
| | - Kenji Kaneko
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenichiro Kinouchi
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hiroshi Itoh
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kaori Hayashi
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takashi Nakagawa
- Department of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Toyama, 930-0194, Japan
| | - Jun Yoshino
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan; Center for Human Nutrition, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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215
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da Costa Fernandes CJ, da Cruz Rodrigues KC, de Melo DG, de Campos TDP, Dos Santos Canciglieri R, Simabuco FM, da Silva ASR, Cintra DE, Ropelle ER, Pauli JR, de Moura LP. Short-term strength exercise reduces the macrophage M1/M2 ratio in white adipose tissue of obese animals. Life Sci 2023; 329:121916. [PMID: 37419412 DOI: 10.1016/j.lfs.2023.121916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/26/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Obesity can exacerbate the systemic inflammatory process, leading to increased infiltration of monocytes in white adipose tissue (WAT) and polarization of these cells into pro-inflammatory M1 macrophages, while reducing the population of anti-inflammatory M2 macrophages. Aerobic exercise has been shown to be effective in reducing the pro-inflammatory profile. However, the impact of strength training and the duration of training on macrophage polarization in the WAT of obese individuals have not been widely studied. Therefore, our aim was to investigate the effects of resistance exercise on macrophage infiltration and polarization in the epididymal and subcutaneous adipose tissue of obese mice. We compared the following groups: Control (CT), Obese (OB), Obese 7-day strength training (STO7d), and Obese 15-day strength training (STO15d). Macrophage populations were evaluated by flow cytometry: total macrophages (F4/80+), M1 (CD11c), and M2 (CD206) macrophages. Our results demonstrated that both training protocols improved peripheral insulin sensitivity by increasing AKT phosphorylation (Ser473). Specifically, the 7-day training regimen reduced total macrophage infiltration and M2 macrophage levels without altering M1 levels. In the STO15d group, significant differences were observed in total macrophage levels, M1 macrophages, and the M1/M2 ratio compared to the OB group. In the epididymal tissue, a reduction in the M1/M2 ratio was observed in the STO7d group. Overall, our data demonstrate that 15 days of strength exercise can reduce the M1/M2 ratio of macrophages in white adipose tissue.
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Affiliation(s)
- Célio Junior da Costa Fernandes
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Kellen Cristina da Cruz Rodrigues
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Diego Gomes de Melo
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Thais Dantis Pereira de Campos
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Raphael Dos Santos Canciglieri
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Fernando Moreira Simabuco
- Multidisciplinary Laboratory of Food and Health (LABMAS), School of Applied Sciences (FCA), University of Campinas (UNICAMP), Limeira, São Paulo, Brazil; Department of Biochemistry, Federal University of São Paulo (UNIFESP), Brazil
| | | | - Dennys Esper Cintra
- Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Eduardo Rochete Ropelle
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - José Rodrigo Pauli
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Leandro Pereira de Moura
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil.
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216
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Bao Y, Oh JH, Kang CW, Ku CR, Cho YH, Lee EJ. Olfactory marker protein regulates adipogenesis via the cAMP-IκBα pathway. Mol Cell Endocrinol 2023; 575:111992. [PMID: 37328092 DOI: 10.1016/j.mce.2023.111992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/02/2023] [Accepted: 06/13/2023] [Indexed: 06/18/2023]
Abstract
Olfactory marker protein (OMP) regulates olfactory transduction and is also expressed in adipose tissue. Since it serves as a regulatory buffer for cyclic AMP (cAMP) levels, we hypothesized that it plays a role in modulating adipocyte differentiation. To determine the role of OMP in adipogenesis, we examined the differences in body weight, adipose tissue mass, and adipogenic or thermogenic gene expression between high-fat diet-fed control and Omp-knockout (KO) mice. cAMP production, adipogenic gene expression, and cAMP response element binding protein (CREB) phosphorylation were measured during the differentiation of 3T3-L1 preadipocytes and mouse embryonic fibroblasts (MEFs). RNA sequencing was performed to determine the gene expression patterns responsible for the reduction in adipogenesis when Omp was deleted. Body weight, adipose tissue mass, and adipocyte size decreased in Omp-KO mice. Furthermore, cAMP production and CREB phosphorylation reduced during adipogenesis induced in Omp-/- MEFs, and the Nuclear factor kappa B was activated due to significantly reduced expression of its inhibitor. Collectively, our results suggest that loss of OMP function inhibits adipogenesis by affecting adipocyte differentiation.
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Affiliation(s)
- Yaru Bao
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University, College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Ju Hun Oh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Chan Woo Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Cheol Ryong Ku
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Yoon Hee Cho
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Eun Jig Lee
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University, College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea; Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
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Liu Z, Huang D, Jiang Y, Ma X, Zhang Y, Chang R. Correlation of R2* with fat fraction and bone mineral density and its role in quantitative assessment of osteoporosis. Eur Radiol 2023; 33:6001-6008. [PMID: 37017704 PMCID: PMC10415514 DOI: 10.1007/s00330-023-09599-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 02/02/2023] [Accepted: 02/22/2023] [Indexed: 04/06/2023]
Abstract
OBJECTIVES To investigate the correlation of R2* with vertebral fat fraction (FF) and bone mineral density (BMD), and to explore its role in the quantitative assessment of osteoporosis (OP). METHODS A total of 83 patients with low back pain (59.77 ± 7.46 years, 30 males) were enrolled, which underwent lumbar MRI in IDEAL-IQ sequences and quantitative computed tomography (QCT) scanning within 48h. The FF, R2*, and BMD of all 415 lumbar vertebrae were respectively measured. According to BMD, all vertebrae were divided into BMD normal, osteopenia, and OP groups, and the difference of FF and R2* among groups was analyzed by one-way ANOVA. The correlation between R2*, FF, and BMD was analyzed by Pearson's test. Taking BMD as the gold standard, the efficacies for FF and R2* in diagnosis of OP and osteopenia were assessed by receiver operating characteristic curve, and their area under the curve (AUC) was compared with DeLong's test. RESULTS The FF and R2* were statistically different among groups (F values of 102.521 and 11.323, both p < 0.05), and R2* were significantly correlated with FF and BMD, respectively (r values of -0.219 and 0.290, both p < 0.05). In diagnosis of OP and osteopenia, the AUCs were 0.776 and 0.778 for FF and 0.638 and 0.560 for R2*, and the AUCs of R2* were lower than those of FF, with Z values of 4.030 and 4.087, both p < 0.001. CONCLUSION R2* is significantly correlated with FF and BMD and can be used as a complement to FF and BMD for quantitative assessment of OP. KEY POINTS • R2* based on IDEAL-IQ sequences has a definite but weak linear relationship with FF and BMD. • FF is significantly correlated with BMD and can effectively evaluate BMAT. • R2* can be used as a complement to FF and BMD for fine quantification of bone mineral loss and bone marrow fat conversion.
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Affiliation(s)
- Zhenghua Liu
- Department of Radiology, Honghui Hospital Affiliated Xi'an Jiaotong University, No. 555, Youyi East Road, Xi'an 710054, China
| | - Dageng Huang
- Department of Spinal Surgery, Honghui Hospital Affiliated Xi'an Jiaotong University, No. 555, Youyi East Road, Xi'an 710054, China
| | - Yonghong Jiang
- Department of Radiology, Honghui Hospital Affiliated Xi'an Jiaotong University, No. 555, Youyi East Road, Xi'an 710054, China.
| | - Xiaowen Ma
- Department of Radiology, Honghui Hospital Affiliated Xi'an Jiaotong University, No. 555, Youyi East Road, Xi'an 710054, China.
| | - Yuting Zhang
- Department of Radiology, Honghui Hospital Affiliated Xi'an Jiaotong University, No. 555, Youyi East Road, Xi'an 710054, China
| | - Rong Chang
- Department of Radiology, Honghui Hospital Affiliated Xi'an Jiaotong University, No. 555, Youyi East Road, Xi'an 710054, China
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van la Parra RFD, Deconinck C, Pirson G, Servaes M, Fosseprez P. Lipedema: What we don't know. J Plast Reconstr Aesthet Surg 2023; 84:302-312. [PMID: 37390539 DOI: 10.1016/j.bjps.2023.05.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/05/2023] [Accepted: 05/14/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND Lipedema is a loose connective tissue disease characterized by a disproportionate accumulation of adipose tissue in the limbs of women. Despite its incidence of 10-20%, lipedema is often underdiagnosed and misdiagnosed. OBJECTIVES This review aims to outline current, available evidence regarding this enigmatic syndrome and gives a synopsis of the subjects that are still unknown. MATERIALS AND METHODS PubMed and Embase searches were conducted to identify relevant articles on lipedema pathophysiology, clinical presentation, diagnosis, and treatment. RESULTS Lipedema can be considered a disease of the adipocytes or a circulatory disorder of the lymphatics. The relationship between lymphatics and adipose tissue remains controversial. The clinical distinction between lipedema, lymphedema, phlebolymphedema, and lipolymphedema can be difficult. Diagnoses often coexist, further complicating the diagnosis of lipedema, which is currently made on clinical grounds alone. The value of diagnostic imaging studies is unclear. Liposuction appears to be an effective treatment and significantly improves symptoms. CONCLUSION Diagnosing lipedema remains a challenge due to its heterogeneous presentation, co-existing diseases, and lack of objective diagnostic imaging. Further directions for research include the effect of excess skin resection surgery on lymphatic drainage.
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Affiliation(s)
- R F D van la Parra
- Department of Plastic, Reconstructive, and Aesthetic Surgery, CHU UCL Namur, Université Catholique de Louvain, Belgium.
| | - C Deconinck
- Department of Plastic, Reconstructive, and Aesthetic Surgery, CHU UCL Namur, Université Catholique de Louvain, Belgium
| | - G Pirson
- Department of Plastic, Reconstructive, and Aesthetic Surgery, CHU UCL Namur, Université Catholique de Louvain, Belgium
| | - M Servaes
- Department of Plastic, Reconstructive, and Aesthetic Surgery, CHU UCL Namur, Université Catholique de Louvain, Belgium
| | - Ph Fosseprez
- Department of Plastic, Reconstructive, and Aesthetic Surgery, CHU UCL Namur, Université Catholique de Louvain, Belgium
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Paez DT, Mendes Garrido Abregú F, Ciancio Del Giudice N, Soria D, Fariña G, Álvarez JH, Fasoli HJ, Zago V, Elesgaray R, Caniffi C, Arranz C, Tomat AL. Zinc deficiency and a high-fat diet during growth: Metabolic and adipocyte alterations in rats. Nutr Metab Cardiovasc Dis 2023; 33:1808-1816. [PMID: 37419750 DOI: 10.1016/j.numecd.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/26/2023] [Accepted: 06/05/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND AND AIMS To evaluate the effects of a high-fat diet during post-weaning growth on intermediate metabolism and retroperitoneal adipose tissue, in adult male rats exposed to adequate or deficient zinc intake during prenatal and postnatal life. METHODS AND RESULTS Female Wistar rats were fed low- or control-zinc diets from pregnancy to offspring weaning. Male offspring born from control mothers were fed either control or high-fat, control-zinc diets for 60 days. Male offspring born from zinc deficient mothers were fed either low-zinc or high-fat, low-zinc diets for 60 days. At 74 days of life, oral glucose tolerance test was performed. In 81-day-old offspring, blood pressure, lipid profile, plasmatic lipid peroxidation and serum adiponectin level were determined. In retroperitoneal adipose tissue, we evaluated oxidative stress, morphology and adipocytokines mRNA expression. Low-zinc diet induced adipocytes hypertrophy, increased oxidative stress, and decreased adiponectin mRNA expression in adipose tissue. Low-zinc diet increased systolic blood pressure, triglyceridemia, plasmatic lipid peroxidation and glycemia at 3 h after glucose overload. Animals fed high-fat or high-fat, low-zinc diets showed adipocytes hypertrophy, decreased adiponectin mRNA expression, and increased leptin mRNA expression and oxidative stress in adipose tissue. They also exhibited decreased serum adiponectin levels, increased triglyceridemia, plasmatic lipid peroxidation and area under the oral glucose tolerance curve. High-fat, low-zinc diet induced greater alterations in adipocyte hypertrophy, leptin mRNA expression and glucose tolerance test than high-fat diet. CONCLUSION Zinc deficiency since early stages of intrauterine life could increase susceptibility to metabolic alterations induced by high-fat diets during postnatal life.
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Affiliation(s)
- Diamela T Paez
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Facundo Mendes Garrido Abregú
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Nicolas Ciancio Del Giudice
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Damián Soria
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gregorio Fariña
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Bioquímica Clínica, Laboratorio de Lípidos y Aterosclerosis, Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Av. Córdoba 2351 Piso 1º, Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan H Álvarez
- Universidad de la Defensa Nacional (UNDEF), Facultad de Ingeniería del Ejército, Cabildo 15, CP 1428, Ciudad Autónoma de Buenos Aires, Argentina
| | - Héctor J Fasoli
- Universidad de la Defensa Nacional (UNDEF), Facultad de Ingeniería del Ejército, Cabildo 15, CP 1428, Ciudad Autónoma de Buenos Aires, Argentina
| | - Valeria Zago
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Bioquímica Clínica, Laboratorio de Lípidos y Aterosclerosis, Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Av. Córdoba 2351 Piso 1º, Ciudad Autónoma de Buenos Aires, Argentina
| | - Rosana Elesgaray
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Carolina Caniffi
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Cristina Arranz
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina
| | - Analía L Tomat
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Fisiología, Junín 956, Piso 7, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Junín 956, Piso 2, CP 1113, Ciudad Autónoma de Buenos Aires, Argentina.
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Moser PT, Schernthaner R, Loewe C, Strassl A, Denzinger F, Faby S, Wels M, Nizhnikava V, Uyanik-Uenal K, Zuckermann A, Stelzmueller ME, Beitzke D. Evaluation of perivascular fat attenuation with coronary CT angiography in cardiac transplantation patients: an imaging biomarker candidate for prediction of cardiac mortality and re-transplantation. Eur Radiol 2023; 33:6299-6307. [PMID: 37072507 PMCID: PMC10415448 DOI: 10.1007/s00330-023-09614-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/17/2023] [Accepted: 02/28/2023] [Indexed: 04/20/2023]
Abstract
OBJECTIVES In cardiac transplant recipients, non-invasive allograft surveillance for identifying patients at risk for graft failure remains challenging. The fat attenuation index (FAI) of the perivascular adipose tissue in coronary computed tomography angiography (CCTA) predicts outcomes in coronary artery disease in non-transplanted hearts; however, it has not been evaluated in cardiac transplant patients. METHODS We followed 39 cardiac transplant patients with two or more CCTAs obtained between 2010 and 2021. We performed FAI measurements around the proximal 4 cm segments of the left anterior descending (LAD), right coronary artery (RCA), and left circumflex artery (LCx) using a previously validated methodology. The FAI was analyzed at a threshold of - 30 to - 190 Hounsfield units. RESULTS FAI measurements were completed in 113 CCTAs, obtained on two same-vendor CT models. Within each CCTA, the FAI values between coronary vessels were strongly correlated (RCA and LAD R = 0.67 (p < 0.0001), RCA and LCx R = 0.58 (p < 0.0001), LAD and LCx R = 0.67 (p < 0.0001)). The FAIs of each coronary vessel between the patient's first and last CCTA completed at 120 kV were also correlated (RCA R = 0.73 (p < 0.0001), LAD R = 0.81 (p < 0.0001), LCx R = 0.55 (p = 0.0069). Finally, a high mean FAI value of all three coronary vessels at baseline (mean ≥ - 71 HU) was predictive of cardiac mortality or re-transplantation, however, not predictive of all cause-mortality. CONCLUSION High baseline FAI values may identify a higher-risk cardiac transplant population; thus, FAI may support the implementation of CCTA in post-transplant surveillance. KEY POINT • Perivascular fat attenuation measured with coronary CT is feasible in cardiac transplant patients and may predict cardiac mortality or need for re-transplantation.
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Affiliation(s)
- Philipp T Moser
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Rüdiger Schernthaner
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
- Department of Radiology, Klinikum Landstrasse, Vienna, Austria
| | - Christian Loewe
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Andreas Strassl
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | | | | | | | - Volha Nizhnikava
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | | | - Andreas Zuckermann
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Dietrich Beitzke
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria.
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Abstract
In the last decades the prevalence of obesity has increased dramatically, and the worldwide epidemic of obesity and related metabolic diseases has contributed to an increased interest for the adipose tissue (AT), the primary site for storage of lipids, as a metabolically dynamic and endocrine organ. Subcutaneous AT is the depot with the largest capacity to store excess energy and when its limit for storage is reached hypertrophic obesity, local inflammation, insulin resistance and ultimately type 2 diabetes (T2D) will develop. Hypertrophic AT is also associated with a dysfunctional adipogenesis, depending on the inability to recruit and differentiate new mature adipose cells. Lately, cellular senescence (CS), an aging mechanism defined as an irreversible growth arrest that occurs in response to various cellular stressors, such as telomere shortening, DNA damage and oxidative stress, has gained a lot of attention as a regulator of metabolic tissues and aging-associated conditions. The abundance of senescent cells increases not only with aging but also in hypertrophic obesity independent of age. Senescent AT is characterized by dysfunctional cells, increased inflammation, decreased insulin sensitivity and lipid storage. AT resident cells, such as progenitor cells (APC), non-proliferating mature cells and microvascular endothelial cells are affected with an increased senescence burden. Dysfunctional APC have both an impaired adipogenic and proliferative capacity. Interestingly, human mature adipose cells from obese hyperinsulinemic individuals have been shown to re-enter the cell cycle and senesce, which indicates an increased endoreplication. CS was also found to be more pronounced in mature cells from T2D individuals, compared to matched non-diabetic individuals, with decreased insulin sensitivity and adipogenic capacity. Factors associated with cellular senescence in human adipose tissue.
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Affiliation(s)
- Annika Nerstedt
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska University Hospital, Sahlgrenska Academy, University of Gothenburg, Blå Stråket 5, SE-413 45, Gothenburg, Sweden
| | - Ulf Smith
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska University Hospital, Sahlgrenska Academy, University of Gothenburg, Blå Stråket 5, SE-413 45, Gothenburg, Sweden.
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Mengoni M, Braun AD, Hinnerichs MS, Tüting T, Surov A. Subcutaneous Fat Abundance and Density Are Associated with an Enhanced Response to Immunotherapy in Metastatic Melanoma: A Retrospective Cohort Study. Acad Radiol 2023; 30 Suppl 1:S257-S267. [PMID: 37331867 DOI: 10.1016/j.acra.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 06/20/2023]
Abstract
RATIONALE AND OBJECTIVES Despite the impressive efficacy of immune checkpoint inhibitors (ICIs) in the treatment of metastatic melanoma, not all patients respond to therapy. In addition, ICI harbors the risk for serious adverse events (AEs), highlighting the need for novel biomarkers predicting treatment response and occurrence of AEs. Recently, the identification of enhanced response to ICI in obese patients has indicated that body composition might influence treatment efficacy. The aim of the current study is to assess radiologic measurements of body composition as biomarkers for treatment response and AEs to ICI in melanoma. MATERIALS AND METHODS In the current work, we analyze adipose tissue abundance and density, as well as muscle mass via computed tomography scans in a retrospective cohort of 100 patients with non-resectable stage III/IV melanoma receiving first-line treatment with ICI in our department. From these, we investigate the impact of the subcutaneous adipose tissue gauge index (SATGI) and other parameters of body composition on treatment efficacy and occurrence of AEs. RESULTS Low SATGI was associated with prolonged progression-free survival (PFS) in univariate and multivariate analyses (hazard ratio 2.56 [95% CI 1.18-5.55], P = .02), as well as an enhanced objective response rate (50.0% vs 27.1%; P = .02). Further analysis with a random forest survival model highlighted a nonlinear relationship between SATGI and PFS with a clear separation into high- and low-risk cohorts separated by the median. Finally, a significant enrichment of cases with vitiligo, but no other AEs, was observed in the SATGI-low cohort (11.5% vs 0%; P = .03). CONCLUSION We identify SATGI as a biomarker predicting treatment response to ICI without increased risk for severe AEs in melanoma.
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Affiliation(s)
- Miriam Mengoni
- Department of Dermatology, University Hospital Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany.
| | - Andreas Dominik Braun
- Department of Dermatology, University Hospital Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Mattes Simon Hinnerichs
- Department of Radiology and Nuclear Medicine, University Hospital Magdeburg, Magdeburg, Germany
| | - Thomas Tüting
- Department of Dermatology, University Hospital Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Alexey Surov
- Department of Radiology and Nuclear Medicine, University Hospital Magdeburg, Magdeburg, Germany; Department of Radiology, Neuroradiology and Nuclear Medicine, Johannes Wesling University Hospital, Ruhr University, Bochum, Germany
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Niemczyk A, Waśkiel-Burnat A, Zaremba M, Czuwara J, Rudnicka L. The profile of adipokines associated with fibrosis and impaired microcirculation in systemic sclerosis. Adv Med Sci 2023; 68:298-305. [PMID: 37696138 DOI: 10.1016/j.advms.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/03/2023] [Accepted: 09/02/2023] [Indexed: 09/13/2023]
Abstract
PURPOSE Adipokines belong to a group of molecules mostly produced by adipose tissue. Abnormalities in the secretion of several adipokines have already implicated to play a pathogenic role in systemic sclerosis (SSc). However, the possible role of numerous molecules still needs to be clarified. The aim of the study was to determine whether the altered level of selected circulating adipokines might correlate with the intensity of fibrosis and vasculopathy in the course of SSc. MATERIALS AND METHODS Serum concentrations of chemerin, adipsin, retinol-binding protein 4, apelin, visfatin, omentin-1, and vaspin were determined with ELISA in the sera of patients with SSc (n = 55) and healthy controls (n = 25). RESULTS The serum concentration of adipsin (p = 0.03) and visfatin (p = 0.04) was significantly increased and the level of retinol-binding protein 4 (p = 0.03) was decreased in diffuse compared to limited cutaneous SSc. Moreover, serum adipsin level correlated positively with the intensity of skin fibrosis measured with the modified Rodnan skin score (r = 0.31, p = 0.02) and was significantly higher in patients with pulmonary arterial hypertension than in those without the condition (p = 0.03). The concentrations of adipsin (p = 0.01) and visfatin (p = 0.04) were significantly increased and the level of apelin (p = 0.02) was decreased in patients with active digital ulcerations compared to individuals without this complication. CONCLUSION Adipsin may be considered a pivotal protein in the development of both fibrosis and impaired microcirculation. Its abnormal concentration reflects the intensity of skin thickening and the presence of pulmonary arterial hypertension. Adipsin, visfatin, and apelin are adipose tissue-derived molecules associated with digital vasculopathy.
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Affiliation(s)
- Anna Niemczyk
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland.
| | | | - Michał Zaremba
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
| | - Joanna Czuwara
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
| | - Lidia Rudnicka
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
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Abstract
In this review, we provide a brief synopsis of the connections between adipose tissue and metabolic health and highlight some recent developments in understanding and exploiting adipocyte biology. Adipose tissue plays critical roles in the regulation of systemic glucose and lipid metabolism and secretes bioactive molecules possessing endocrine, paracrine, and autocrine functions. Dysfunctional adipose tissue has a detrimental impact on metabolic health and is intimately involved in key aspects of metabolic diseases such as insulin resistance, lipid overload, inflammation, and organelle stress. Differences in the distribution of fat depots and adipose characteristics relate to divergent degrees of metabolic dysfunction found in metabolically healthy and unhealthy obese individuals. Thermogenic adipocytes increase energy expenditure via mitochondrial uncoupling or adenosine triphosphate-consuming futile substrate cycles, while functioning as a metabolic sink and participating in crosstalk with other metabolic organs. Manipulation of adipose tissue provides a wealth of opportunities to intervene and combat the progression of associated metabolic diseases. We discuss current treatment modalities for obesity including incretin hormone analogs and touch upon emerging strategies with therapeutic potential including exosome-based therapy, pharmacological activation of brown and beige adipocyte thermogenesis, and administration or inhibition of adipocyte-derived factors.
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Affiliation(s)
- Sung-Min An
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
| | - Seung-Hee Cho
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
| | - John C. Yoon
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
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Yuan Y, Shin S, Shi Z, Shu G, Jiang Y. Postnatal Tamoxifen Exposure Induces Long-Lasting Changes to Adipose Tissue in Adult Mice. Mol Biotechnol 2023:10.1007/s12033-023-00828-6. [PMID: 37642828 DOI: 10.1007/s12033-023-00828-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 07/14/2023] [Indexed: 08/31/2023]
Abstract
Tamoxifen (TAM) is commonly administered to a variety of inducible or conditional transgenic mice that contain Cre recombinase fused with ER. While the impacts of adult TAM treatment are well documented in the field of adipose biology, the long-term effects of postnatal TAM treatment on adult life are still understudied. In this study, we investigated whether postnatal TAM treatment had long-lasting effects on adult body composition and adiposity in male and female mice, fed either with chow or a high-fat diet (HFD). We found that postnatal, but not adult, TAM treatment had long-lasting impacts on female mice, resulting in lower body weight, lower fat mass, and smaller adipocytes. In contrast, postnatal exposure to TAM impaired male but not female cold-induced adipose beiging capacity. Interestingly, upon HFD feeding, the sex-dependent effects of TAM on adult life disappeared, and both female and male mice showed a more obese phenotype with impaired glucose tolerance. These findings suggest that postnatal TAM injection exerts a long-lasting impact on adipose tissue in adult life in a sex- and diet-dependent manner.
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Affiliation(s)
- Yexian Yuan
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Sunhye Shin
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Major of Food and Nutrition, Division of Applied Food System, Seoul Women's University, Seoul, 01797, Korea
| | - Zuoxiao Shi
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Gang Shu
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yuwei Jiang
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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226
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Zhu T, Yang S, Mauro TM, Man MQ. Association of Epidermal Biophysical Properties with Obesity and Its Implications. Skin Pharmacol Physiol 2023; 36:165-173. [PMID: 37640014 DOI: 10.1159/000533587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/04/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND Obesity is a condition defined by an excess amount of body fat, with body mass index (BMI) of 30 and higher. It is associated with a number of other medical conditions, including insulin resistance, diabetes mellitus, and cardiovascular diseases, as well as dyslipidemia, and it is also associated with several cutaneous disorders such as atopic dermatitis, psoriasis, intertriginous dermatitis, acanthosis nigricans and skin infections. SUMMARY Evidence suggests a link between obesity and epidermal dysfunction. Generally, individuals with obesity display higher transepidermal water loss rate and lower stratum corneum hydration levels, although no association of obesity with epidermal dysfunction has been documented. Results of skin surface pH are controversial. But study demonstrated a positive correlation of BMI with skin surface pH on both the forearm and the shin in males, suggesting that the changes in epidermal function vary with gender in individuals with obesity. KEY MESSAGES This review summarizes the association between obesity and epidermal function, and discusses possible underlying mechanisms. Individuals with obesity exhibit poor epidermal permeability barrier and lower stratum corneum hydration levels. Because of the pathogenic role of compromised epidermal function in inflammation, which is also linked to obesity, improvement in epidermal function could benefit individuals with obesity, particularly those with abnormalities in epidermal function.
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Affiliation(s)
- Tingting Zhu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shuyun Yang
- Department of Dermatology, The People's Hospital of Baoshan, Baoshan, China
| | - Theodora M Mauro
- Department of Dermatology, Veterans Affairs Medical Center San Francisco, University of California San Francisco, San Francisco, California, USA
| | - Mao-Qiang Man
- Department of Dermatology, Veterans Affairs Medical Center San Francisco, University of California San Francisco, San Francisco, California, USA
- Dermatology Hospital, Southern Medical University, Guangzhou, China
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227
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Zapata RC, Nasamran CA, Chilin-Fuentes DR, Dulawa SC, Osborn O. Identification of adipose tissue transcriptomic memory of anorexia nervosa. Mol Med 2023; 29:109. [PMID: 37582711 PMCID: PMC10428576 DOI: 10.1186/s10020-023-00705-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/24/2023] [Indexed: 08/17/2023] Open
Abstract
BACKGROUND Anorexia nervosa (AN) is a complex debilitating disease characterized by intense fear of weight gain and excessive exercise. It is the deadliest of any psychiatric disorder with a high rate of recidivism, yet its pathophysiology is unclear. The Activity-Based Anorexia (ABA) paradigm is a widely accepted mouse model of AN that recapitulates hypophagia and hyperactivity despite reduced body weight, however, not the chronicity. METHODS Here, we modified the prototypical ABA paradigm to increase the time to lose 25% of baseline body weight from less than 7 days to more than 2 weeks. We used this paradigm to identify persistently altered genes after weight restoration that represent a transcriptomic memory of under-nutrition and may contribute to AN relapse using RNA sequencing. We focused on adipose tissue as it was identified as a major location of transcriptomic memory of over-nutririon. RESULTS We identified 300 dysregulated genes that were refractory to weight restroration after ABA, including Calm2 and Vps13d, which could be potential global regulators of transcriptomic memory in both chronic over- and under-nutrition. CONCLUSION We demonstrated the presence of peristent changes in the adipose tissue transcriptome in the ABA mice after weight restoration. Despite being on the opposite spectrum of weight perturbations, majority of the transcriptomic memory genes of under- and over-nutrition did not overlap, suggestive of the different mechanisms involved in these extreme nutritional statuses.
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Affiliation(s)
- Rizaldy C Zapata
- Division of Endocrinology and Metabolism, School of Medicine, University of California San Diego, San Diego, USA.
| | - Chanond A Nasamran
- Center for Computational Biology & Bioinformatics, School of Medicine, University of California San Diego, San Diego, USA
| | - Daisy R Chilin-Fuentes
- Center for Computational Biology & Bioinformatics, School of Medicine, University of California San Diego, San Diego, USA
| | - Stephanie C Dulawa
- Department of Psychiatry, School of Medicine, University of California San Diego, La Jolla, 92093, San Diego, CA, USA
| | - Olivia Osborn
- Division of Endocrinology and Metabolism, School of Medicine, University of California San Diego, San Diego, USA
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228
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Rouskas K, Katsareli EA, Amerikanou C, Dimopoulos AC, Glentis S, Kalantzi A, Skoulakis A, Panousis N, Ongen H, Bielser D, Planchon A, Romano L, Harokopos V, Reczko M, Moulos P, Griniatsos I, Diamantis T, Dermitzakis ET, Ragoussis J, Dedoussis G, Dimas AS. Identifying novel regulatory effects for clinically relevant genes through the study of the Greek population. BMC Genomics 2023; 24:442. [PMID: 37543566 PMCID: PMC10403965 DOI: 10.1186/s12864-023-09532-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/25/2023] [Indexed: 08/07/2023] Open
Abstract
BACKGROUND Expression quantitative trait loci (eQTL) studies provide insights into regulatory mechanisms underlying disease risk. Expanding studies of gene regulation to underexplored populations and to medically relevant tissues offers potential to reveal yet unknown regulatory variants and to better understand disease mechanisms. Here, we performed eQTL mapping in subcutaneous (S) and visceral (V) adipose tissue from 106 Greek individuals (Greek Metabolic study, GM) and compared our findings to those from the Genotype-Tissue Expression (GTEx) resource. RESULTS We identified 1,930 and 1,515 eGenes in S and V respectively, over 13% of which are not observed in GTEx adipose tissue, and that do not arise due to different ancestry. We report additional context-specific regulatory effects in genes of clinical interest (e.g. oncogene ST7) and in genes regulating responses to environmental stimuli (e.g. MIR21, SNX33). We suggest that a fraction of the reported differences across populations is due to environmental effects on gene expression, driving context-specific eQTLs, and suggest that environmental effects can determine the penetrance of disease variants thus shaping disease risk. We report that over half of GM eQTLs colocalize with GWAS SNPs and of these colocalizations 41% are not detected in GTEx. We also highlight the clinical relevance of S adipose tissue by revealing that inflammatory processes are upregulated in individuals with obesity, not only in V, but also in S tissue. CONCLUSIONS By focusing on an understudied population, our results provide further candidate genes for investigation regarding their role in adipose tissue biology and their contribution to disease risk and pathogenesis.
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Affiliation(s)
- Konstantinos Rouskas
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Efthymia A Katsareli
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Charalampia Amerikanou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Alexandros C Dimopoulos
- Institute for Fundamental Biomedical Science, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Hellenic Naval Academy, Hatzikyriakou Avenue, Pireaus, Greece
| | - Stavros Glentis
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Pediatric Hematology/Oncology Unit (POHemU), First Department of Pediatrics, University of Athens, Aghia Sophia Children's Hospital, Athens, Greece
| | - Alexandra Kalantzi
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Anargyros Skoulakis
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | | | - Halit Ongen
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
- Swiss Institute of Bioinformatics, University of Geneva, Geneva, Switzerland
- Institute of Genetics and Genomics in Geneva, University of Geneva, Geneva, Switzerland
| | - Deborah Bielser
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Alexandra Planchon
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Luciana Romano
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Vaggelis Harokopos
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Martin Reczko
- Institute for Fundamental Biomedical Science, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Panagiotis Moulos
- Institute for Fundamental Biomedical Science, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Center of New Biotechnologies & Precision Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioannis Griniatsos
- First Department of Surgery, National and Kapodistrian University of Athens, Medical School, Laiko Hospital, Athens, Greece
| | - Theodoros Diamantis
- First Department of Surgery, National and Kapodistrian University of Athens, Medical School, Laiko Hospital, Athens, Greece
| | - Emmanouil T Dermitzakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Jiannis Ragoussis
- Department of Human Genetics, McGill University Genome Centre, McGill University, Montréal, QC, Canada
- Department of Bioengineering, McGill University, Montréal, QC, Canada
| | - George Dedoussis
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Antigone S Dimas
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece.
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Zoico E, Saatchi T, Nori N, Mazzali G, Rizzatti V, Pizzi E, Fantin F, Giani A, Urbani S, Zamboni M. Senescent adipocytes as potential effectors of muscle cells dysfunction: An in vitro model. Exp Gerontol 2023; 179:112233. [PMID: 37321332 DOI: 10.1016/j.exger.2023.112233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 05/31/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023]
Abstract
Recently, there has been a growing body of evidence showing a negative effect of the white adipose tissue (WAT) dysfunction on the skeletal muscle function and quality. However, little is known about the effects of senescent adipocytes on muscle cells. Therefore, to explore potential mechanisms involved in age-related loss of muscle mass and function, we performed an in vitro experiment using conditioned medium obtained from cultures of mature and aged 3 T3-L1 adipocytes, as well as from cultures of dysfunctional adipocytes exposed to oxidative stress or high insulin doses, to treat C2C12 myocytes. The results from morphological measures indicated a significant decrease in diameter and fusion index of myotubes after treatment with medium of aged or stressed adipocytes. Aged and stressed adipocytes presented different morphological characteristics as well as a different gene expression profile of proinflammatory cytokines and ROS production. In myocytes treated with different adipocytes' conditioned media, we demonstrated a significant reduction of gene expression of myogenic differentiation markers as well as a significant increase of genes involved in atrophy. Finally, a significant reduction in protein synthesis as well as a significant increase of myostatin was found in muscle cells treated with medium of aged or stressed adipocytes compared to controls. In conclusion, these preliminary results suggest that aged adipocytes could influence negatively trophism, function and regenerative capacity of myocytes by a paracrine network of signaling.
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Affiliation(s)
- Elena Zoico
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Tanaz Saatchi
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy.
| | - Nicole Nori
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Gloria Mazzali
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Vanni Rizzatti
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
| | - Eleonora Pizzi
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
| | - Francesco Fantin
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Anna Giani
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Silvia Urbani
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Mauro Zamboni
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
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230
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Han SY, Kim J, Kim BK, Whang WK, Min H. Effects of caffeoylquinic acid analogs derived from aerial parts of Artemisia iwayomogi on adipogenesis. Food Sci Biotechnol 2023; 32:1215-1223. [PMID: 37362808 PMCID: PMC10289966 DOI: 10.1007/s10068-023-01262-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/22/2022] [Accepted: 01/10/2023] [Indexed: 02/09/2023] Open
Abstract
Artemisia iwayomogi (AI) is a perennial herb found in Korea. Its ground parts are dried and used in food and traditional medicine for treating hepatitis, inflammation, cholelithiasis, and jaundice. In this study, the anti-obesity effects of single compounds isolated from AI extracts on adipose tissue were investigated. Results demonstrated that caffeoylquinic acid analogs strongly inhibited adipocyte differentiation from 3T3-L1 preadipocytes and reduced neutral lipids in differentiated adipocytes. Accordingly, lipid accumulation in adipocytes decreased, and lipid droplets became granulated. Caffeoylquinic acid analogs suppressed the expression of adipocyte differentiation marker genes, namely, Cebpa, Lep, and Fabp4, but it induced the expression of Ucp1, Ppargc1a, and Fgf21, which are browning biomarkers. Therefore, caffeoylquinic acid analogs from AI inhibited preadipocyte differentiation and induced adipose tissue browning, suggesting that these compounds could be promising therapeutic agents for obesity.
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Affiliation(s)
- Su-Young Han
- College of Pharmacy, Chung-Ang University, 84 Heukseokro, Dongjakgu, Seoul, 06974 Korea
| | - Jisu Kim
- College of Pharmacy, Chung-Ang University, 84 Heukseokro, Dongjakgu, Seoul, 06974 Korea
| | - Bo Kyeong Kim
- College of Pharmacy, Chung-Ang University, 84 Heukseokro, Dongjakgu, Seoul, 06974 Korea
| | - Wan Kyunn Whang
- College of Pharmacy, Chung-Ang University, 84 Heukseokro, Dongjakgu, Seoul, 06974 Korea
| | - Hyeyoung Min
- College of Pharmacy, Chung-Ang University, 84 Heukseokro, Dongjakgu, Seoul, 06974 Korea
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231
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Sodhi K, Maxwell K, Yan Y, Liu J, Chaudhry MA, Xie Z, Shapiro JI. pNaKtide Inhibits Na/K-ATPase Signaling and Attenuates Obesity. J Clin Med Sci 2023; 7:1000238. [PMID: 38283397 PMCID: PMC10812088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Obesity is a growing public health crisis across the world and has been recognized as an underlying risk factor for metabolic syndrome. Growing evidence demonstrates the critical role of oxidative stress in the pathophysiological mechanisms of obesity and related metabolic dysfunction. As we have established previously that Na/K-ATPase can amplify oxidative stress signaling, we aimed to explore the effect of inhibition of this pathway on obesity phenotype using the peptide antagonist, pNaKtide. The experiments performed in murine preadipocytes showed the dose-dependent effect of pNaKtide in attenuating oxidant stress and lipid accumulation. Furthermore, these in vitro findings were confirmed in C57Bl6 mice fed a high-fat diet. Interestingly, pNaKtide could significantly reduce body weight, ameliorate systemic oxidative and inflammatory milieu and improve insulin sensitivity in obese mice. Hence the study demonstrates the therapeutic utility of pNaKtide as an inhibitor of Na/K-ATPase oxidant amplification signaling to alleviate obesity and associated comorbidities.
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Affiliation(s)
- Komal Sodhi
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
| | - Kyle Maxwell
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
| | - Yanling Yan
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
| | - Jiang Liu
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
| | - Muhammad A Chaudhry
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
| | - Zijian Xie
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
| | - Joseph I Shapiro
- Department of Medicine, Biomedical Science, and Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, United States of America
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232
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Inouye KE, Prentice KJ, Lee A, Wang ZB, Dominguez-Gonzalez C, Chen MX, Riveros JK, Burak MF, Lee GY, Hotamışlıgil GS. Endothelial-derived FABP4 constitutes the majority of basal circulating hormone and regulates lipolysis-driven insulin secretion. JCI Insight 2023; 8:e164642. [PMID: 37279064 PMCID: PMC10443803 DOI: 10.1172/jci.insight.164642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 05/31/2023] [Indexed: 06/07/2023] Open
Abstract
Fatty acid binding protein 4 (FABP4) is a lipid chaperone secreted from adipocytes upon stimulation of lipolysis. Circulating FABP4 levels strongly correlate with obesity and metabolic pathologies in experimental models and humans. While adipocytes have been presumed to be the major source of hormonal FABP4, this question has not been addressed definitively in vivo. We generated mice with Fabp4 deletion in cells known to express the gene - adipocytes (Adipo-KO), endothelial cells (Endo-KO), myeloid cells (Myeloid-KO), and the whole body (Total-KO) - to examine the contribution of these cell types to basal and stimulated plasma FABP4 levels. Unexpectedly, baseline plasma FABP4 was not significantly reduced in Adipo-KO mice, whereas Endo-KO mice showed ~87% reduction versus WT controls. In contrast, Adipo-KO mice exhibited ~62% decreased induction of FABP4 responses to lipolysis, while Endo-KO mice showed only mildly decreased induction, indicating that adipocytes are the main source of increases in FABP4 during lipolysis. We did not detect any myeloid contribution to circulating FABP4. Surprisingly, despite the nearly intact induction of FABP4, Endo-KO mice showed blunted lipolysis-induced insulin secretion, identical to Total-KO mice. We conclude that the endothelium is the major source of baseline hormonal FABP4 and is required for the insulin response to lipolysis.
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Affiliation(s)
- Karen E. Inouye
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Kacey J. Prentice
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Alexandra Lee
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Zeqiu B. Wang
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Carla Dominguez-Gonzalez
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Mu Xian Chen
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Jillian K. Riveros
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - M. Furkan Burak
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Grace Y. Lee
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
| | - Gökhan S. Hotamışlıgil
- Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Department of Molecular Metabolism, Boston, Massachusetts, USA
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
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233
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Benesch MGK, Wu R, Tang X, Brindley DN, Ishikawa T, Takabe K. Autotaxin production in the human breast cancer tumor microenvironment mitigates tumor progression in early breast cancers. Am J Cancer Res 2023; 13:2790-2813. [PMID: 37559999 PMCID: PMC10408472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/14/2023] [Indexed: 08/11/2023] Open
Abstract
Autotaxin (ATX) is a secreted enzyme that produces extracellular lysophosphatidate in physiological wound healing. ATX is overexpressed in many cancers to promote growth, metastasis, and treatment resistance. However, ATX expression is very low in breast cancer cells, and is instead secreted by the tumor microenvironment (TME). Paracrine ATX expression, and its effects on tumor progression, has not been robustly studied in human breast tumors. In this study, ATX expression was analyzed in over 5000 non-metastatic breast cancers from databases TCGA, METABRIC and GSE96058, dichotomized by the median. Gene set enrichment analysis (GSEA) and the xCell algorithm investigated biological functions of ATX and correlation to TME cell populations. TME ATX production was verified by single cell RNA sequencing. The highest ATX expression occurred in endothelial cells and cancer-associated fibroblasts (P<0.0001). High tumor ATX expression correlated to increased adipocyte, fibroblast, and endothelial cell fractions (P<0.01), and GSEA demonstrated enriched immune system, tumor suppressor, pro-survival, stemness, and pro-inflammatory signaling in multiple gene sets. Tumor mutational burden was decreased, Ki67 scores were decreased, tumor infiltrating immune cell populations increased, and immune cytolytic activity scores increased (all P<0.01) for ATX-high tumors. Overall survival trends favored ATX-high tumors (hazard ratios 0.75-0.80). In summary, in human breast cancers, ATX is produced by the TME, and in non-metastatic tumors, high levels correlate with an anti-tumor phenotype. Because pre-clinical models use aggressive pro-metastatic cell lines where ATX-mediated signaling promotes tumorigenesis, further research is required to verify an anti-to-pro-tumor phenotype switch with breast cancer progression and/or treatment resistance.
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Affiliation(s)
- Matthew GK Benesch
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer CenterBuffalo, New York 14263, USA
| | - Rongrong Wu
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer CenterBuffalo, New York 14263, USA
- Department of Breast Surgery and Oncology, Tokyo Medical UniversityTokyo 160-8402, Japan
| | - Xiaoyun Tang
- Cancer Research Institute of Northern Alberta, Department of Biochemistry, University of AlbertaEdmonton, Alberta T6G 2H7, Canada
| | - David N Brindley
- Cancer Research Institute of Northern Alberta, Department of Biochemistry, University of AlbertaEdmonton, Alberta T6G 2H7, Canada
| | - Takashi Ishikawa
- Department of Breast Surgery and Oncology, Tokyo Medical UniversityTokyo 160-8402, Japan
| | - Kazuaki Takabe
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer CenterBuffalo, New York 14263, USA
- Department of Breast Surgery and Oncology, Tokyo Medical UniversityTokyo 160-8402, Japan
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of MedicineYokohama 236-0004, Japan
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental SciencesNiigata 951-8520, Japan
- Department of Breast Surgery, Fukushima Medical University School of MedicineFukushima 960-1295, Japan
- Department of Surgery, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, State University of New YorkBuffalo, New York 14263, USA
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Souza-Tavares H, Miranda CS, Vasques-Monteiro IML, Sandoval C, Santana-Oliveira DA, Silva-Veiga FM, Fernandes-da-Silva A, Souza-Mello V. Peroxisome proliferator-activated receptors as targets to treat metabolic diseases: Focus on the adipose tissue, liver, and pancreas. World J Gastroenterol 2023; 29:4136-4155. [PMID: 37475842 PMCID: PMC10354577 DOI: 10.3748/wjg.v29.i26.4136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/26/2023] [Accepted: 06/13/2023] [Indexed: 07/10/2023] Open
Abstract
The world is experiencing reflections of the intersection of two pandemics: Obesity and coronavirus disease 2019. The prevalence of obesity has tripled since 1975 worldwide, representing substantial public health costs due to its comorbidities. The adipose tissue is the initial site of obesity impairments. During excessive energy intake, it undergoes hyperplasia and hypertrophy until overt inflammation and insulin resistance turn adipocytes into dysfunctional cells that send lipotoxic signals to other organs. The pancreas is one of the organs most affected by obesity. Once lipotoxicity becomes chronic, there is an increase in insulin secretion by pancreatic beta cells, a surrogate for type 2 diabetes mellitus (T2DM). These alterations threaten the survival of the pancreatic islets, which tend to become dysfunctional, reaching exhaustion in the long term. As for the liver, lipotoxicity favors lipogenesis and impairs beta-oxidation, resulting in hepatic steatosis. This silent disease affects around 30% of the worldwide population and can evolve into end-stage liver disease. Although therapy for hepatic steatosis remains to be defined, peroxisome proliferator-activated receptors (PPARs) activation copes with T2DM management. Peroxisome PPARs are transcription factors found at the intersection of several metabolic pathways, leading to insulin resistance relief, improved thermogenesis, and expressive hepatic steatosis mitigation by increasing mitochondrial beta-oxidation. This review aimed to update the potential of PPAR agonists as targets to treat metabolic diseases, focusing on adipose tissue plasticity and hepatic and pancreatic remodeling.
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Affiliation(s)
| | | | | | - Cristian Sandoval
- Escuela de Tecnología Médica, Facultad de Salud, Universidad Santo Tomás, Osorno 5310431, Chile
- Departamento de Ciencias Preclínicas, Universidad de la Frontera, Temuco 4780000, Chile
| | | | | | | | - Vanessa Souza-Mello
- Department of Anatomy, Rio de Janeiro State University, Rio de Janeiro 20551030, Brazil
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235
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Cal K, Leyva A, Rodríguez-Duarte J, Ruiz S, Santos L, Colella L, Ingold M, Vilaseca C, Galliussi G, Ziegler L, Peclat TR, Bresque M, Handy RM, King R, dos Reis LM, Espasandin C, Breining P, Dapueto R, Lopez A, Thompson KL, Agorrody G, DeVallance E, Meadows E, Lewis SE, Barbosa GCS, de Souza LOL, Chichierchio MS, Valez V, Aicardo A, Contreras P, Vendelbo MH, Jakobsen S, Kamaid A, Porcal W, Calliari A, Verdes JM, Du J, Wang Y, Hollander JM, White TA, Radi R, Moyna G, Quijano C, O’Doherty R, Moraes-Vieira P, Holloway GP, Leonardi R, Mori MA, Camacho-Pereira J, Kelley EE, Duran R, Lopez GV, Batthyány C, Chini EN, Escande C. A nitroalkene derivative of salicylate alleviates diet-induced obesity by activating creatine metabolism and non-shivering thermogenesis. Res Sq 2023:rs.3.rs-3101395. [PMID: 37502859 PMCID: PMC10371099 DOI: 10.21203/rs.3.rs-3101395/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Obesity-related type II diabetes (diabesity) has increased global morbidity and mortality dramatically. Previously, the ancient drug salicylate demonstrated promise for the treatment of type II diabetes, but its clinical use was precluded due to high dose requirements. In this study, we present a nitroalkene derivative of salicylate, 5-(2-nitroethenyl)salicylic acid (SANA), a molecule with unprecedented beneficial effects in diet-induced obesity (DIO). SANA reduces DIO, liver steatosis and insulin resistance at doses up to 40 times lower than salicylate. Mechanistically, SANA stimulated mitochondrial respiration and increased creatine-dependent energy expenditure in adipose tissue. Indeed, depletion of creatine resulted in the loss of SANA action. Moreover, we found that SANA binds to creatine kinases CKMT1/2, and downregulation CKMT1 interferes with the effect of SANA in vivo. Together, these data demonstrate that SANA is a first-in-class activator of creatine-dependent energy expenditure and thermogenesis in adipose tissue and emerges as a candidate for the treatment of diabesity.
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Affiliation(s)
- Karina Cal
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
- Unidad Biofísica, Departamento de Biociencias, Facultad de Veterinaria, Udelar, Uruguay
| | - Alejandro Leyva
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo, IIBCE, Uruguay
| | - Jorge Rodríguez-Duarte
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
| | - Santiago Ruiz
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
| | - Leonardo Santos
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
| | - Lucía Colella
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Departamento de Química Orgánica, Facultad de Química, Udelar, Uruguay
| | - Mariana Ingold
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Departamento de Química Orgánica, Facultad de Química, Udelar, Uruguay
| | - Cecilia Vilaseca
- Departamento de Fisiología, Facultad de Medicina, Udelar, Uruguay
| | - German Galliussi
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Laboratory of Immunoregulation and Inflammation; Institut Pasteur Montevideo, Uruguay
| | - Lucía Ziegler
- Departamento de Ecología y Gestión Ambiental, Centro Universitario Regional del Este, Udelar, Maldonado, Uruguay
| | - Thais R. Peclat
- Mayo Clinic Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering; Mayo Clinic, Rochester, MN, USA
| | - Mariana Bresque
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
| | - Rachel M Handy
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Rachel King
- Department of Biochemistry and Molecular Medicine, West Virginia University, Morgantown WV, USA
| | - Larissa Menezes dos Reis
- Laboratory of Immunometabolism, Department of Genetics, Evolution, Microbiology, and Immunology, Institute of Biology, University of Campinas, SP, Brazil; Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil; Obesity and Comorbidities Research Center (OCRC), University of Campinas, SP, Brazil; Experimental Medicine Research Cluster (EMRC), University of Campinas, SP, Brazil
| | - Camila Espasandin
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
- Unidad Bioquìmica, Facultad de Veterinaria, Udelar, Uruguay
| | | | - Rosina Dapueto
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Área I+D Biomédico, CUDIM, Uruguay
| | - Andrés Lopez
- Laboratorio de Fisicoquímica Orgánica, Departamento de Química del Litoral, CENUR Litoral Norte, Udelar, Uruguay
| | - Katie L. Thompson
- Mayo Clinic Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering; Mayo Clinic, Rochester, MN, USA
| | - Guillermo Agorrody
- Departamento de Fisiopatología, Hospital de Clínicas, Facultad de Medicina, Udelar, Uruguay
| | - Evan DeVallance
- Department of Physiology and Pharmacology, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Ethan Meadows
- Mitochondria, Metabolism and Bioenergetics Working Group; School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Sara E. Lewis
- Department of Physiology and Pharmacology, School of Medicine, West Virginia University, Morgantown, WV, USA
- Mitochondria, Metabolism and Bioenergetics Working Group; School of Medicine, West Virginia University, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, USA
| | - Gabriele Catarine Santana Barbosa
- Laboratory of Bioenergetics and Mitochondrial Physiology, Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Brazil
| | - Leonardo Osbourne Lai de Souza
- Laboratory of Bioenergetics and Mitochondrial Physiology, Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Brazil
| | - Marina Santos Chichierchio
- Laboratory of Bioenergetics and Mitochondrial Physiology, Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Brazil
| | - Valeria Valez
- Cátedra de Bioquímica y Biofísica, Facultad de Odontología, Udelar, Uruguay
- Centro de Investigaciones Biomédicas (CEINBIO), Udelar, Uruguay
- Departamento de Bioquímica, Facultad de Medicina, Udelar, Uruguay
| | - Adrián Aicardo
- Centro de Investigaciones Biomédicas (CEINBIO), Udelar, Uruguay
- Departamento de Bioquímica, Facultad de Medicina, Udelar, Uruguay
- Departamento de Nutrición Clínica, Escuela de Nutrición, Udelar, Uruguay
| | - Paola Contreras
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
- Departamento de Fisiología, Facultad de Medicina, Udelar, Uruguay
| | - Mikkel H. Vendelbo
- Department of Biomedicine, Aarhus University, Denmark
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Denmark
| | - Steen Jakobsen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Denmark
| | - Andrés Kamaid
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo, IIBCE, Uruguay
- Unidad de Bioimagenología Avanzada. Institut Pasteur de Montevideo, Uruguay
| | - Williams Porcal
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Departamento de Química Orgánica, Facultad de Química, Udelar, Uruguay
| | - Aldo Calliari
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
- Unidad Biofísica, Departamento de Biociencias, Facultad de Veterinaria, Udelar, Uruguay
| | - José Manuel Verdes
- Unidad Patología, Departamento de Patobiología; Facultad de Veterinaria, Udelar, Uruguay
| | - Jianhai Du
- Mitochondria, Metabolism and Bioenergetics Working Group; School of Medicine, West Virginia University, Morgantown, WV, USA
- Department of Ophthalmology and Visual Sciences, Department of Biochemistry, West Virginia University, Morgantown, USA
| | - Yekai Wang
- Department of Ophthalmology and Visual Sciences, Department of Biochemistry, West Virginia University, Morgantown, USA
| | - John M Hollander
- Mitochondria, Metabolism and Bioenergetics Working Group; School of Medicine, West Virginia University, Morgantown, WV, USA
- Division of Exercise Physiology, West Virginia University, Morgantown, USA
| | - Thomas A. White
- Mayo Clinic Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Rafael Radi
- Centro de Investigaciones Biomédicas (CEINBIO), Udelar, Uruguay
- Departamento de Bioquímica, Facultad de Medicina, Udelar, Uruguay
| | - Guillermo Moyna
- Laboratorio de Fisicoquímica Orgánica, Departamento de Química del Litoral, CENUR Litoral Norte, Udelar, Uruguay
| | - Celia Quijano
- Centro de Investigaciones Biomédicas (CEINBIO), Udelar, Uruguay
- Departamento de Bioquímica, Facultad de Medicina, Udelar, Uruguay
| | - Robert O’Doherty
- Department of Medicine, Division of Endocrinology and Metabolism, University of Pittsburgh, Pennsylvania
- Department of Microbiology and Molecular Genetics; University of Pittsburgh, Pennsylvania
| | - Pedro Moraes-Vieira
- Laboratory of Immunometabolism, Department of Genetics, Evolution, Microbiology, and Immunology, Institute of Biology, University of Campinas, SP, Brazil; Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil; Obesity and Comorbidities Research Center (OCRC), University of Campinas, SP, Brazil; Experimental Medicine Research Cluster (EMRC), University of Campinas, SP, Brazil
| | - Graham P Holloway
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Roberta Leonardi
- Department of Biochemistry and Molecular Medicine, West Virginia University, Morgantown WV, USA
- Mitochondria, Metabolism and Bioenergetics Working Group; School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Marcelo A Mori
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, SP, Brazil; Obesity and Comorbidities Research Center (OCRC), Campinas, SP, Brazil; Experimental Medicine Research Cluster (EMRC), Campinas, SP, Brazil; Instituto Nacional de Obesidade e Diabetes, Campinas, SP, Brazil
| | - Juliana Camacho-Pereira
- Laboratory of Bioenergetics and Mitochondrial Physiology, Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Brazil
| | - Eric E. Kelley
- Department of Physiology and Pharmacology, School of Medicine, West Virginia University, Morgantown, WV, USA
- Mitochondria, Metabolism and Bioenergetics Working Group; School of Medicine, West Virginia University, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, USA
| | - Rosario Duran
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo, IIBCE, Uruguay
| | - Gloria V. Lopez
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
- Departamento de Química Orgánica, Facultad de Química, Udelar, Uruguay
| | - Carlos Batthyány
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur Montevideo, Uruguay
| | - Eduardo N. Chini
- Mayo Clinic Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering; Mayo Clinic, Rochester, MN, USA
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Jacksonville, Florida, USA
| | - Carlos Escande
- Laboratory of Metabolic Diseases and Aging, Institut Pasteur Montevideo, Uruguay
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Pal SC, Méndez-Sánchez N. Insulin resistance and adipose tissue interactions as the cornerstone of metabolic (dysfunction)-associated fatty liver disease pathogenesis. World J Gastroenterol 2023; 29:3999-4008. [PMID: 37476582 PMCID: PMC10354585 DOI: 10.3748/wjg.v29.i25.3999] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/09/2023] [Accepted: 03/20/2023] [Indexed: 06/28/2023] Open
Abstract
The relationship between metabolic derangements and fatty liver development are undeniable, since more than 75% of patients with type 2 diabetes mellitus present with fatty liver. There is also significant epidemiological association between insulin resistance (IR) and metabolic (dysfunction)-associated fatty liver disease (MAFLD). For little more than 2 years, the nomenclature of fatty liver of non-alcoholic origin has been intended to change to MAFLD by multiple groups. While a myriad of reasons for which MAFLD is thought to be of metabolic origin could be exposed, the bottom line relies on the role of IR as an initiator and perpetuator of this disease. There is a reciprocal role in MAFLD development and IR as well as serum glucose concentrations, where increased circulating glucose and insulin result in increased de novo lipogenesis by sterol regulatory element-binding protein-1c induced lipogenic enzyme stimulation; therefore, increased endogenous production of triglycerides. The same effect is achieved through impaired suppression of adipose tissue (AT) lipolysis in insulin-resistant states, increasing fatty acid influx into the liver. The complementary reciprocal situation occurs when liver steatosis alters hepatokine secretion, modifying fatty acid metabolism as well as IR in a variety of tissues, including skeletal muscle, AT, and the liver. The aim of this review is to discuss the importance of IR and AT interactions in metabolic altered states as perhaps the most important factor in MAFLD pathogenesis.
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Affiliation(s)
- Shreya C Pal
- Faculty of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico
- Liver Research Unit, Medica Sur Clinic & Foundation, Mexico City 04510, Mexico
| | - Nahum Méndez-Sánchez
- Faculty of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico
- Liver Research Unit, Medica Sur Clinic & Foundation, Mexico City 04510, Mexico
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237
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Liu X, Khalil AEMM, Muthukumarasamy U, Onogi Y, Yan X, Singh I, Lopez-Gonzales E, Israel A, Serrano AC, Strowig T, Ussar S. Reduced intestinal lipid absorption improves glucose metabolism in aged G2-Terc knockout mice. BMC Biol 2023; 21:150. [PMID: 37403071 DOI: 10.1186/s12915-023-01629-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 05/22/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Biological aging is an important factor leading to the development of pathologies associated with metabolic dysregulation, including type 2 diabetes, cancer, cardiovascular and neurodegenerative diseases. Telomere length, a central feature of aging, has additionally been identified as inversely associated with glucose tolerance and the development of type 2 diabetes. However, the effects of shortened telomeres on body weight and metabolism remain incompletely understood. Here, we studied the metabolic consequences of moderate telomere shortening using second generation loss of telomerase activity in mice. RESULTS Aged male and female G2 Terc-/- mice and controls were characterized with respect to body weight and composition, glucose homeostasis, insulin sensitivity and metabolic activity. This was complemented with molecular and histological analysis of adipose tissue, liver and the intestine as well as microbiota analysis. We show that moderate telomere shortening leads to improved insulin sensitivity and glucose tolerance in aged male and female G2 Terc-/- mice. This is accompanied by reduced fat and lean mass in both sexes. Mechanistically, the metabolic improvement results from reduced dietary lipid uptake in the intestine, characterized by reduced gene expression of fatty acid transporters in enterocytes of the small intestine. Furthermore, G2-Terc-/- mice showed significant alterations in the composition of gut microbiota, potentially contributing to the improved glucose metabolism. CONCLUSIONS Our study shows that moderate telomere shortening reduces intestinal lipid absorption, resulting in reduced adiposity and improved glucose metabolism in aged mice. These findings will guide future murine and human aging studies and provide important insights into the age associated development of type 2 diabetes and metabolic syndrome.
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Affiliation(s)
- Xue Liu
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | - Ahmed Elagamy Mohamed Mahmoud Khalil
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | | | - Yasuhiro Onogi
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | - Xiaocheng Yan
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | - Inderjeet Singh
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | - Elena Lopez-Gonzales
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | - Andreas Israel
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
| | - Alberto Cebrian Serrano
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
- Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Till Strowig
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Brunswick, Germany
- Hannover Medical School, Hannover, Germany
| | - Siegfried Ussar
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity, Helmholtz Diabetes Center, Helmholtz Center Munich, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany.
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany.
- Department of Medicine, Technische Universität München, Munich, Germany.
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Miranda CS, Silva-Veiga FM, Santana-Oliveira DA, Fernandes-da-Silva A, Brito GC, Martins FF, Souza-Mello V. Chronic Excessive Fructose Intake Maximizes Brown Adipocyte Whitening but Causes Similar White Adipocyte Hypertrophy Than a High-Fat Diet in C57BL/6 Mice. J Am Nutr Assoc 2023; 42:435-444. [PMID: 35822844 DOI: 10.1080/07315724.2022.2062686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Objective: This study aimed to evaluate the differential role of a high-fat diet (HF) or high-fructose diet (HFRU) on white adipose tissue and brown adipose tissue remodeling in C57BL/6 mice.Methods: The animals were randomly assigned to receive HF (50% of energy as lipids), HFRU (50% of energy as fructose), or a control diet (C, 10% of energy as lipids) for 12 weeks. Results: The HF group became overweight from the 7th week onwards, but both HF and HFRU groups showed hyperinsulinemia, oral glucose intolerance, and adverse adipose tissue remodeling. HF and HFRU groups showed interscapular brown adipose tissue whitening, tough the reduced QA [nuclei] suggested maximized brown adipocyte dysfunction due to the HFRU diet. In contrast, HF and HFRU diets exerted similar effects upon subcutaneous white adipocytes, with a similar average cross-sectional area. Immunohistochemistry confirmed the whitening enhancement with reduced UCP1 immunodensity in the HFRU group. Conclusion: In conclusion, HF and HFRU diets had indistinguishable effects upon white adipocyte morphology, but the HFRU diet provoked a more pronounced whitening than the HF diet after a 12-week protocol. These results point to the silent and harmful impact that excessive fructose has upon the metabolism of lean mice.
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Affiliation(s)
- Carolline Santos Miranda
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flávia Maria Silva-Veiga
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daiana Araujo Santana-Oliveira
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline Fernandes-da-Silva
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabrielle Carvalho Brito
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabiane Ferreira Martins
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vanessa Souza-Mello
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Amin A, Badenes M, Tüshaus J, de Carvalho É, Burbridge E, Faísca P, Trávníčková K, Barros A, Carobbio S, Domingos PM, Vidal-Puig A, Moita LF, Maguire S, Stříšovský K, Ortega FJ, Fernández-Real JM, Lichtenthaler SF, Adrain C. Semaphorin 4B is an ADAM17-cleaved adipokine that inhibits adipocyte differentiation and thermogenesis. Mol Metab 2023; 73:101731. [PMID: 37121509 PMCID: PMC10197113 DOI: 10.1016/j.molmet.2023.101731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/02/2023] Open
Abstract
OBJECTIVE The metalloprotease ADAM17 (also called TACE) plays fundamental roles in homeostasis by shedding key signaling molecules from the cell surface. Although its importance for the immune system and epithelial tissues is well-documented, little is known about the role of ADAM17 in metabolic homeostasis. The purpose of this study was to determine the impact of ADAM17 expression, specifically in adipose tissues, on metabolic homeostasis. METHODS We used histopathology, molecular, proteomic, transcriptomic, in vivo integrative physiological and ex vivo biochemical approaches to determine the impact of adipose tissue-specific deletion of ADAM17 upon adipocyte and whole organism metabolic physiology. RESULTS ADAM17adipoq-creΔ/Δ mice exhibited a hypermetabolic phenotype characterized by elevated energy consumption and increased levels of adipocyte thermogenic gene expression. On a high fat diet, these mice were more thermogenic, while exhibiting elevated expression levels of genes associated with lipid oxidation and lipolysis. This hypermetabolic phenotype protected mutant mice from obesogenic challenge, limiting weight gain, hepatosteatosis and insulin resistance. Activation of beta-adrenoceptors by the neurotransmitter norepinephrine, a key regulator of adipocyte physiology, triggered the shedding of ADAM17 substrates, and regulated ADAM17 expression at the mRNA and protein levels, hence identifying a functional connection between thermogenic licensing and the regulation of ADAM17. Proteomic studies identified Semaphorin 4B (SEMA4B), as a novel ADAM17-shed adipokine, whose expression is regulated by physiological thermogenic cues, that acts to inhibit adipocyte differentiation and dampen thermogenic responses in adipocytes. Transcriptomic data showed that cleaved SEMA4B acts in an autocrine manner in brown adipocytes to repress the expression of genes involved in adipogenesis, thermogenesis, and lipid uptake, storage and catabolism. CONCLUSIONS Our findings identify a novel ADAM17-dependent axis, regulated by beta-adrenoceptors and mediated by the ADAM17-cleaved form of SEMA4B, that modulates energy balance in adipocytes by inhibiting adipocyte differentiation, thermogenesis and lipid catabolism.
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Affiliation(s)
- Abdulbasit Amin
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal; Department of Physiology, Faculty of Basic Medical Sciences, University of Ilorin, Nigeria
| | - Marina Badenes
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal; Faculty of Veterinary Medicine, Lusofona University, Lisbon, Portugal; Faculty of Veterinary Nursing, Polytechnic Institute of Lusofonia, Lisbon, Portugal
| | - Johanna Tüshaus
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany; Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany
| | - Érika de Carvalho
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal; Instituto de Tecnologia Química da Universidade Nova de Lisboa (ITQB-Nova), Oeiras, Portugal
| | - Emma Burbridge
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal; Patrick G Johnston Centre for Cancer Research, Queen's University, Belfast, N. Ireland
| | - Pedro Faísca
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal
| | - Květa Trávníčková
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - André Barros
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal
| | - Stefania Carobbio
- Centro de Investigacíon Principe Felipe (CIPF), Valencia, Spain; Metabolic Research Laboratories, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, UK
| | - Pedro M Domingos
- Instituto de Tecnologia Química da Universidade Nova de Lisboa (ITQB-Nova), Oeiras, Portugal
| | - Antonio Vidal-Puig
- Centro de Investigacíon Principe Felipe (CIPF), Valencia, Spain; Metabolic Research Laboratories, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, UK
| | - Luís F Moita
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal
| | - Sarah Maguire
- Patrick G Johnston Centre for Cancer Research, Queen's University, Belfast, N. Ireland
| | - Kvido Stříšovský
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Francisco J Ortega
- Girona Biomedical Research Institute (IDIBGI), Girona, Spain; Department of Medical Sciences, University of Girona, Girona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), and Institute of Salud Carlos III (ISCIII), Madrid, Spain
| | - José Manuel Fernández-Real
- Girona Biomedical Research Institute (IDIBGI), Girona, Spain; Department of Medical Sciences, University of Girona, Girona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), and Institute of Salud Carlos III (ISCIII), Madrid, Spain
| | - Stefan F Lichtenthaler
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany; Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Colin Adrain
- Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal; Patrick G Johnston Centre for Cancer Research, Queen's University, Belfast, N. Ireland.
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Hatt A, Lloyd R, Bolsterlee B, Bilston LE. Strain-dependent shear properties of human adipose tissue in vivo. J Mech Behav Biomed Mater 2023; 143:105924. [PMID: 37276651 DOI: 10.1016/j.jmbbm.2023.105924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/14/2023] [Accepted: 05/20/2023] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Human adipose tissue (fat) deforms substantially under normal physiological loading and during impact. Thus, accurate data on strain-dependent stiffness of fat is essential for the creation of accurate biomechanical models. Previous studies on ex vivo samples reported human fat to be nonlinear and viscoelastic. When static compression is combined with magnetic resonance (MR) elastography (an imaging technique used to measure viscoelasticity in vivo), the large deformation properties of tissues can be determined. Here, we use magnetic resonance elastography to quantify fat shear modulus in vivo under increasing compressive strain and compare it to the underlying passive gluteal muscle. METHODS The right buttocks of ten female participants were incrementally compressed at four levels while MR elastography (50 Hz) and mDixon images were acquired. Maps of tissue shear modulus (G*) were reconstructed from the MR elastography phase images. Tissue strain was estimated from registration of deformed and undeformed mDixon images. Linear mixed models were fit to the natural logarithm of the compressive strain and shear modulus data for each tissue. RESULTS Shear modulus increased in an exponential relationship with compressive strain in fat: Gfat*=748.5*Cyy-1.18Pa, and to a lesser extent in muscle: Gmuscle*=956.4*Cyy-0.36Pa. The baseline (undeformed) stiffness of fat was significantly lower than that of muscle (mean G*fat = 752 Pa, mean G*muscle = 1000 Pa, paired samples t-test, t = -4.24, p = 0.001). However, fat exhibited a significantly higher degree of strain dependence (characterised by the exponent of the curve, t = -6.47, p = 0.0001). CONCLUSION Static compression of human adipose tissue results in an increase in apparent viscoelastic shear modulus (stiffness), in an exponentially increasing relationship. The relationships defined here can be used in the development of physiologically realistic computational models for impact, injury and biomechanical modelling.
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Affiliation(s)
- Alice Hatt
- Neuroscience Research Australia, PO Box 1165, Randwick, NSW, 2031, Australia
| | - Robert Lloyd
- Neuroscience Research Australia, PO Box 1165, Randwick, NSW, 2031, Australia; University of New South Wales, Faculty of Medicine & Health, 18 High St, Kensington, NSW, 2052, Australia
| | - Bart Bolsterlee
- Neuroscience Research Australia, PO Box 1165, Randwick, NSW, 2031, Australia; University of New South Wales, Graduate School of Biomedical Engineering, Library Rd, Kensington, NSW, 2033, Australia
| | - Lynne E Bilston
- Neuroscience Research Australia, PO Box 1165, Randwick, NSW, 2031, Australia; University of New South Wales, Faculty of Medicine & Health, 18 High St, Kensington, NSW, 2052, Australia.
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Shim KS, Ryu DH, Jo HS, Kim KB, Kim DH, Park YK, Heo M, Cho HE, Yoon ES, Lee WJ, Roh TS, Song SY, Baek W. Breast Tissue Reconstruction Using Polycaprolactone Ball Scaffolds in a Partial Mastectomy Pig Model. Tissue Eng Regen Med 2023; 20:607-619. [PMID: 37017922 PMCID: PMC10313586 DOI: 10.1007/s13770-023-00528-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/01/2023] [Accepted: 02/11/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND Breast cancer patients suffer from lowered quality of life (QoL) after surgery. Breast conservancy surgery (BCS) such as partial mastectomy is being practiced and studied as an alternative to solve this problem. This study confirmed breast tissue reconstruction in a pig model by fabricating a 3-dimensional (3D) printed Polycaprolactone spherical scaffold (PCL ball) to fit the tissue resected after partial mastectomy. METHODS A 3D printed Polycaprolactone spherical scaffold with a structure that can help adipose tissue regeneration was produced using computer-aided design (CAD). A physical property test was conducted for optimization. In order to enhance biocompatibility, collagen coating was applied and a comparative study was conducted for 3 months in a partial mastectomy pig model. RESULTS In order to identify adipose tissue and fibroglandular tissue, which mainly constitute breast tissue, the degree of adipose tissue and collagen regeneration was confirmed in a pig model after 3 months. As a result, it was confirmed that a lot of adipose tissue was regenerated in the PCL ball, whereas more collagen was regenerated in the collagen-coated Polycaprolactone spherical scaffold (PCL-COL ball). In addition, as a result of confirming the expression levels of TNF-a and IL-6, it was confirmed that PCL ball showed higher levels than PCL-COL ball. CONCLUSION Through this study, we were able to confirm the regeneration of adipose tissue through a 3-dimensional structure in a pig model. Studies were conducted on medium and large-sized animal models for the final purpose of clinical use and reconstruction of human breast tissue, and the possibility was confirmed.
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Affiliation(s)
- Kyu-Sik Shim
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Da Hye Ryu
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Han-Saem Jo
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Ki-Bum Kim
- PLCOskin Co., Ltd, Seoul, 120-752, Korea
| | | | | | - Min Heo
- PLCOskin Co., Ltd, Seoul, 120-752, Korea
| | - Hee-Eun Cho
- Department of Plastic and Reconstructive Surgery, Korea University Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, Korea
| | - Eul-Sik Yoon
- Department of Plastic and Reconstructive Surgery, Korea University Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, Korea
| | - Won Jai Lee
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Tai Suk Roh
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Seung Yong Song
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea.
| | - Wooyeol Baek
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea.
- PLCOskin Co., Ltd, Seoul, 120-752, Korea.
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Liu J, Song Y, Wang Y, Hong H. Vitamin D/vitamin D receptor pathway in non-alcoholic fatty liver disease. Expert Opin Ther Targets 2023; 27:1145-1157. [PMID: 37861098 DOI: 10.1080/14728222.2023.2274099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 10/18/2023] [Indexed: 10/21/2023]
Abstract
INTRODUCTION Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide, but underlying mechanisms are not fully understood. In recent years, a growing body of evidence has emphasized the therapeutic role of vitamin D in NAFLD, but the specific mechanism remains to be investigated. AREAS COVERED This review summarized the roles of vitamin D/VDR (vitamin D receptor) pathway in different types of liver cells (such as hepatocytes, hepatic stellate cells, liver macrophages, T lymphocytes, and other hepatic immune cells) in case of NAFLD. Meanwhile, the effects of pathways in the gut-liver axis, adipose tissue-liver axis, and skeletal muscle-liver axis on the development of NAFLD were further reviewed. Relevant literature was searched on PubMed for the writing of this review. EXPERT OPINION The precise regulation of regional vitamin D/VDR signaling pathway based on cell-specific or tissue-specific function will help clarify the potential mechanism of vitamin D in NAFLD, which may provide new therapeutic targets to improve the safety and efficacy of vitamin D based drugs.
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Affiliation(s)
- Jingqi Liu
- Fujian Key Laboratory of Vascular Aging, Department of Geriatrics, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Xiamen Institute of Geriatric Rehabilitation, Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Yang Song
- Department of Gastroenterology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Ye Wang
- Xiamen Institute of Geriatric Rehabilitation, Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Huashan Hong
- Fujian Key Laboratory of Vascular Aging, Department of Geriatrics, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
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243
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Lee G, Kluwe B, Zhao S, Kline D, Nedungadi D, Brock GN, Odei JB, Kesireddy V, Pohlman N, Sims M, Effoe VS, Wu WC, Kalyani RR, Wand GS, Echouffo-Tcheugui J, Golden SH, Joseph JJ. Adiposity, aldosterone and plasma renin activity among African Americans: The Jackson Heart Study. Endocr Metab Sci 2023; 11:100126. [PMID: 37475849 PMCID: PMC10358448 DOI: 10.1016/j.endmts.2023.100126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023] Open
Abstract
Objective To analyze associations between adiposity and the renin-angiotensin-aldosterone system (RAAS) in a large African American (AA) cohort. Methods Cross-sectional associations of adiposity (body mass index [BMI], waist circumference [WC], waist:height ratio, waist:hip ratio, leptin, adiponectin, leptin:adiponectin ratio [LAR], subcutaneous [SAT] and visceral adipose tissue [VAT], and liver attenuation [LA]) with aldosterone, plasma renin activity (renin), and aldosterone:renin ratio (ARR) were assessed in the Jackson Heart Study using adjusted linear regression models. Results A 1-SD higher BMI was associated with a 4.8 % higher aldosterone, 9.4 % higher renin, and 5.0 % lower ARR (all p < 0.05). Log-leptin had the largest magnitude of association with renin (30.2 % higher) and ARR (9.6 % lower), while the strongest association of aldosterone existed for log-LAR (15.3 % higher) (all 1-SD, p < 0.05). SAT was only associated with renin. VAT was associated with higher aldosterone, renin, and ARR. Liver fat was associated with aldosterone and renin, but not ARR. Associations of WC, BMI, and SAT with aldosterone were greater in men while the association with VAT was greater in women (p-interactions < 0.05). Conclusion Multiple measures of adiposity are associated with the RAAS in AAs. Further studies should examine the role of RAAS in obesity-driven cardiometabolic diseases.
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Affiliation(s)
- Grace Lee
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Bjorn Kluwe
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Songzhu Zhao
- Department of Biomedical Informatics, Center for
Biostatistics, The Ohio State University, Columbus, OH, USA
| | - David Kline
- Department of Biomedical Informatics, Center for
Biostatistics, The Ohio State University, Columbus, OH, USA
| | - Divya Nedungadi
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Guy N. Brock
- Department of Biomedical Informatics, Center for
Biostatistics, The Ohio State University, Columbus, OH, USA
| | - James B. Odei
- Division of Biostatistics, The Ohio State University
College of Public Health, Columbus, OH, USA
| | - Veena Kesireddy
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Neal Pohlman
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Mario Sims
- Department of Medicine, University of Mississippi Medical
Center, Jackson, MS, USA
| | - Valery S. Effoe
- Department of Medicine, Morehouse School of Medicine,
Atlanta, GA, USA
| | - Wen-Chih Wu
- Department of Medicine, Warren Alpert Medical School of
Brown University, Providence, RI, USA
| | - Rita R. Kalyani
- Department of Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Gary S. Wand
- Department of Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | | | - Sherita H. Golden
- Department of Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Joshua J. Joseph
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
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Ying Z, van Eenige R, Ge X, van Marwijk C, Lambooij JM, Guigas B, Giera M, de Boer JF, Coskun T, Qu H, Wang Y, Boon MR, Rensen PCN, Kooijman S. Combined GIP receptor and GLP1 receptor agonism attenuates NAFLD in male APOE∗3-Leiden.CETP mice. EBioMedicine 2023; 93:104684. [PMID: 37379656 DOI: 10.1016/j.ebiom.2023.104684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Combined glucose-dependent insulinotropic polypeptide receptor (GIPR) and glucagon-like peptide-1 receptor (GLP1R) agonism is superior to single GLP1R agonism with respect to glycemic control and weight loss in obese patients with or without type 2 diabetes. As insulin resistance and obesity are strong risk factors for nonalcoholic fatty liver disease (NAFLD), in the current study we investigated the effects of combined GIPR/GLP1R agonism on NAFLD development. METHODS Male APOE∗3-Leiden.CETP mice, a humanized model for diabetic dyslipidemia and NAFLD when fed a high-fat high-cholesterol diet, received subcutaneous injections with either vehicle, a GIPR agonist, a GLP1R agonist, or both agonists combined every other day. FINDINGS GIPR and GLP1R agonism reduced body weight and additively lowered fasting plasma levels of glucose, triglycerides and total cholesterol. Strikingly, we report an additive reduction in hepatic steatosis as evidenced by lower hepatic lipid content and NAFLD scores. Underlying the lipid-lowering effects were a reduced food intake and intestinal lipid absorption and an increased uptake of glucose and triglyceride-derived fatty acids by energy-combusting brown adipose tissue. Combined GIPR/GLP1R agonism also attenuated hepatic inflammation as evidenced by a decreased number of monocyte-derived Kupffer cells and a reduced expression of inflammatory markers. Together, the reduced hepatic steatosis and inflammation coincided with lowered markers of liver injury. INTERPRETATION We interpretate that GIPR and GLP1R agonism additively attenuate hepatic steatosis, lower hepatic inflammation, ameliorate liver injury, together preventing NAFLD development in humanized APOE∗3-Leiden.CETP mice. We anticipate that combined GIPR/GLP1R agonism is a promising strategy to attenuate NAFLD progression in humans. FUNDING This work was supported by a grant from the Netherlands CardioVascular Research Initiative: the Dutch Heart Foundation, Dutch Federation of University Medical Centers, the Netherlands Organization for Health Research and Development, and the Royal Netherlands Academy of Sciences [CVON-GENIUS-II] to P.C.N.R., a Lilly Research Award Program [LRAP] Award to P.C.N.R. and S.K., a Dutch Heart Foundation [2017T016] grant to S.K., and an NWO-VENI grant [09150161910073] to M.R.B.; J.F.D.B. is supported by the Nutrition and Health initiative of the University of Groningen; Z.Y. is supported by a full-time PhD scholarship from the China Scholarship Council (201806850094 to Z.Y.).
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Affiliation(s)
- Zhixiong Ying
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Robin van Eenige
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Xiaoke Ge
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Christy van Marwijk
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Joost M Lambooij
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands; Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Bruno Guigas
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Martin Giera
- The Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Jan Freark de Boer
- Departments of Pediatrics and Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Tamer Coskun
- Department of Diabetes/Endocrine, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN, United States
| | - Hongchang Qu
- Department of Diabetes/Endocrine, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN, United States
| | - Yanan Wang
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Med-X Institute, Center for Immunological and Metabolic Diseases and Department of Endocrinology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, China
| | - Mariëtte R Boon
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Patrick C N Rensen
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Sander Kooijman
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands.
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Xu ZH, Xiong CW, Miao KS, Yu ZT, Zhang JJ, Yu CL, Huang Y, Zhou XD. Adipokines regulate mesenchymal stem cell osteogenic differentiation. World J Stem Cells 2023; 15:502-513. [PMID: 37424950 PMCID: PMC10324509 DOI: 10.4252/wjsc.v15.i6.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/26/2023] [Accepted: 04/24/2023] [Indexed: 06/26/2023] Open
Abstract
Mesenchymal stem cells (MSCs) can differentiate into various tissue cell types including bone, adipose, cartilage, and muscle. Among those, osteogenic differentiation of MSCs has been widely explored in many bone tissue engineering studies. Moreover, the conditions and methods of inducing osteogenic differentiation of MSCs are continuously advancing. Recently, with the gradual recognition of adipokines, the research on their involvement in different pathophysiological processes of the body is also deepening including lipid metabolism, inflammation, immune regulation, energy disorders, and bone homeostasis. At the same time, the role of adipokines in the osteogenic differentiation of MSCs has been gradually described more completely. Therefore, this paper reviewed the evidence of the role of adipokines in the osteogenic differentiation of MSCs, emphasizing bone formation and bone regeneration.
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Affiliation(s)
- Zhong-Hua Xu
- Department of Orthopedics, Jintan Hospital Affiliated to Jiangsu University, Changzhou 213200, Jiangsu Province, China
| | - Chen-Wei Xiong
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Kai-Song Miao
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Zhen-Tang Yu
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Jun-Jie Zhang
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Chang-Lin Yu
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Yong Huang
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Xin-Die Zhou
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Department of Orthopedics, Gonghe County Hospital of Traditional Chinese Medicine, Hainan Tibetan Autonomous Prefecture 811800, Qinghai Province, China
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Fisch J, de Moura AC, Feistauer V, Reinhardt LS, Molz P, Morás AM, Moura DJ, de Souza PO, Braganhol E, Almeida S, Guedes RP, Barschak AG, Giovenardi M. Effects of different maternal diets on adipose tissue inflammation and liver tissue oxidative stress in dams and their female offspring. Mol Cell Biochem 2023:10.1007/s11010-023-04791-3. [PMID: 37354361 DOI: 10.1007/s11010-023-04791-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/15/2023] [Indexed: 06/26/2023]
Abstract
Pregnancy and lactation are important stages of fetal development. Therefore, this study investigated how different maternal diets offered during gestation and lactation periods affect adipose tissue inflammation and liver tissue oxidative stress of dams and their female offspring. Female BALB/c albino mice (60 days old) were randomized into three groups receiving a standard (CONT), hypercaloric (HD), or restricted (RD) diet during the pregnancy. After birth, female offspring weaned at 21 days were divided into two groups that received a standard or restricted diet (CONT/CONT, CONT/RD, RD/CONT, RD/RD, HD/CONT, and HD/RD) until 100 days old. Histological, oxidative parameters and inflammatory infiltrate of dams' and offspring's liver and adipose tissue were evaluated. HD dams presented non-alcoholic steatohepatitis (NASH) diagnosis and an increase in tumor necrosis factor-alpha (TNF-α) concentrations when compared to the RD and CONT dams, indicating a pro-inflammatory state. High concentrations of malondialdehyde (MDA) formation and catalase (CAT) activity in HD when compared to the CONT in the liver. SOD activity decreased in RD mice compared to CONT, and the SOD/CAT ratio was decreased in the RD and HD in comparison to the CONT. The maternal diet leads to an increase in SOD in RD/RD compared to HD/RD. RD-fed dams showed an increase in inflammatory infiltrates compared to CONT, evidencing changes caused by a restrictive diet. In the HD/CONT offspring, we verified an increase in inflammatory infiltrates in relation to the offspring fed a standard diet. In conclusion, HD, and RD, during pregnancy and lactation, altered the liver and adipose tissues of mothers. Furthermore, the maternal diet negatively impacts the offspring's adipose tissue but does not cause liver damage in these animals in adult life.
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Affiliation(s)
- Joana Fisch
- Graduate Program in Health Science, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Ana Carolina de Moura
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Vanessa Feistauer
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Luiza Steffens Reinhardt
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Patrícia Molz
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Ana Moira Morás
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Dinara Jaqueline Moura
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Priscila Oliveira de Souza
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Elizandra Braganhol
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Silvana Almeida
- Graduate Program in Health Science, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Renata Padilha Guedes
- Graduate Program in Health Science, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Alethéa Gatto Barschak
- Graduate Program in Health Science, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil
| | - Márcia Giovenardi
- Graduate Program in Health Science, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil.
- Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, 90050-170, Brazil.
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Romano L, Fiasca F, Mattei A, Tersigni L, Gianneramo C, Schietroma M, Carlei F, Giuliani A. Sarcopenia and visceral fat in patients with incisional hernia after urgent laparotomy. Langenbecks Arch Surg 2023; 408:244. [PMID: 37351682 DOI: 10.1007/s00423-023-02973-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 06/10/2023] [Indexed: 06/24/2023]
Abstract
PURPOSE Various risk factors have been associated with the development of incisional hernia (IH). Some recent papers underlined that visceral fat could be a reliable indicator. Another risk factor which is of increasing clinical interest is sarcopenia. Recent studies have identified it as an independent predictor of poor postoperative outcomes following abdominal surgery. We aimed to investigate the role of visceral fat and skeletal muscle as emerging risk factors for IH after urgent laparotomy. METHODS Patients aged 18 years or older who underwent urgent median laparotomy and with continuous direct suturing of the laparotomy were included. They were categorized into two groups: those with a median IH and those without IH at 12-month follow-up. Demographic data were prospectively collected while CT scans were retrospectively reviewed. The data were compared among two groups. RESULTS From January 2018 to May 2021, 364 patients underwent urgent surgery in our Department, of whom 222 were aged >18 years old and underwent median laparotomy. Forty-four patients had diagnosis of median IH, while 41 patients without IH were identified as the control group. Statistically significant differences emerged for BMI and for the area of visceral fat. The association with the presence/absence of sarcopenia was not significant. CONCLUSION Even when surgery is performed in urgent settings, it could be important to identify patients at risk, especially as CT scans are generally available for all patients with urgent abdominal disease.
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Affiliation(s)
- Lucia Romano
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
- Department of General Surgery, San Salvatore Hospital, L'Aquila, Italy.
| | - Fabiana Fiasca
- Department of Life, Health & Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Antonella Mattei
- Department of Life, Health & Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Leonardo Tersigni
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Department of General Surgery, San Salvatore Hospital, L'Aquila, Italy
| | - Camilla Gianneramo
- Department of Radiology, S. Salvatore Hospital, Via L. Natali, 1, 67100, L'Aquila, Italy
| | - Mario Schietroma
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Department of General Surgery, San Salvatore Hospital, L'Aquila, Italy
| | - Francesco Carlei
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Department of General Surgery, San Salvatore Hospital, L'Aquila, Italy
| | - Antonio Giuliani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Department of General Surgery, San Salvatore Hospital, L'Aquila, Italy
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248
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Akasaka H, Lee W, Ko SY, Lengyel E, Naora H. Normal saline remodels the omentum and stimulates its receptivity for transcoelomic metastasis. JCI Insight 2023; 8:e167336. [PMID: 37345662 PMCID: PMC10371238 DOI: 10.1172/jci.insight.167336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 05/04/2023] [Indexed: 06/23/2023] Open
Abstract
The omentum contains immune cell structures called milky spots that are niches for transcoelomic metastasis. It is difficult to remove the omentum completely, and there are no effective strategies to minimize the risk of colonization of preserved omental tissues by cancer cells that circulate in the peritoneal fluid. Normal saline is commonly administered into the peritoneal cavity for diagnostic and intraoperative lavage. Here we show that normal saline, when administered into the peritoneal cavity of mice, is prominently absorbed by the omentum, exfoliates its mesothelium, and induces expression of CX3CL1, the ligand for CX3CR1, within and surrounding the omental vasculature. Studies using CX3CR1-competent and CX3CR1-deficient mice showed that the predominant response in the omentum following saline administration is an accumulation of CX3CR1+ monocytes/macrophages that expand milky spots and promote neoangiogenesis within these niches. Moreover, saline administration promoted the implantation of cancer cells of ovarian and colorectal origin onto the omentum. By contrast, these deleterious effects were not observed following i.p. administration of lactated Ringer's solution. Our findings suggest that normal saline stimulates the receptivity of the omentum for cancer cells and that the risk of colonization can be minimized by using a biocompatible crystalloid for lavage procedures.
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Affiliation(s)
- Hironari Akasaka
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - WonJae Lee
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Song Yi Ko
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ernst Lengyel
- Department of Obstetrics and Gynecology, Section of Gynecologic Oncology, University of Chicago, Chicago, Illinois, USA
| | - Honami Naora
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Öztürk NK, Çiçek B, Tekin T, Güntürk İ, Yazıcı C, Karaca Z, Sönmez M. Serum visfatin levels are positively correlated with dietary carbohydrate and polyunsaturated fatty acid intakes in type 2 diabetes mellitus patients. J Diabetes Complications 2023; 37:108550. [PMID: 37364350 DOI: 10.1016/j.jdiacomp.2023.108550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/23/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Affiliation(s)
- Nurefşan Konyalıgil Öztürk
- Bolu Abant İzzet Baysal University, Faculty of Health Sciences, Department of Nutrition and Dietetics, Bolu, Turkey.
| | - Betül Çiçek
- Erciyes University, Faculty of Health Sciences, Department of Nutrition and Dietetics, Kayseri, Turkey.
| | - Tuba Tekin
- Sivas Cumhuriyet University, Faculty of Health Sciences, Department of Nutrition and Dietetics, Sivas, Turkey.
| | - İnayet Güntürk
- Niğde Ömer Halisdemir University, Faculty of Health Sciences, Department of Midwifery, Niğde, Turkey.
| | - Cevat Yazıcı
- Erciyes University, Faculty of Medicine, Department of Biochemistry and Clinical Biochemistry, Kayseri, Turkey.
| | - Züleyha Karaca
- Erciyes University, Faculty of Medicine, Department of Endocrinology & Metabolism, Kayseri, Turkey.
| | - Meltem Sönmez
- Erciyes University, Faculty of Medicine, Department of Biostatistics, Kayseri, Turkey.
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250
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Carbone F, Liberale L, Libby P, Montecucco F. Vitamin D in atherosclerosis and cardiovascular events. Eur Heart J 2023; 44:2078-2094. [PMID: 36943351 PMCID: PMC10281557 DOI: 10.1093/eurheartj/ehad165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 01/30/2023] [Accepted: 03/04/2023] [Indexed: 03/23/2023] Open
Abstract
Both experimental and clinical findings linking vitamin D to cardiovascular (CV) risk have prompted consideration of its supplementation to improve overall health. Yet several meta-analyses do not provide support for the clinical effectiveness of this strategy. Meanwhile, the understanding of the roles of vitamin D in the pathophysiology of CV diseases has evolved. Specifically, recent work has revealed some non-classical pleiotropic effects of vitamin D, increasing the complexity of vitamin D signalling. Within particular microenvironments (e.g. dysfunctional adipose tissue and atherosclerotic plaque), vitamin D can act locally at cellular level through intracrine/autocrine/paracrine feedforward and feedback circuits. Within atherosclerotic tissues, 'local' vitamin D levels may influence relevant systemic consequences independently of its circulating pool. Moreover, vitamin D links closely to other signalling pathways of CV relevance including those driving cellular senescence, ageing, and age-related diseases-among them CV conditions. This review updates knowledge on vitamin D biology aiming to clarify the widening gap between experimental and clinical evidence. It highlights the potential reverse causation confounding correlation between vitamin D status and CV health, and the need to consider novel pathophysiological concepts in the design of future clinical trials that explore the effects of vitamin D on atherosclerosis and risk of CV events.
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Affiliation(s)
- Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa—Italian Cardiovascular Network, Genoa, Italy
| | - Luca Liberale
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa—Italian Cardiovascular Network, Genoa, Italy
| | - Peter Libby
- Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa—Italian Cardiovascular Network, Genoa, Italy
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