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Meng Y, Toledo-Rodriguez M, Fedorenko O, Smith PA. Sex and age affect depot expression of Ca2+ channels in rat white fat adipocytes. J Mol Endocrinol 2024; 72:e230108. [PMID: 38299791 PMCID: PMC10959010 DOI: 10.1530/jme-23-0108] [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: 09/06/2023] [Accepted: 02/01/2024] [Indexed: 02/02/2024]
Abstract
White adipose tissue (WAT) requires extracellular Ca2+ influx for lipolysis, differentiation, and expansion. This partly occurs via plasma membrane Ca2+ voltage-dependent channels (CaVs). However, WFA exists in different depots whose function varies with age, sex, and location. To explore whether their CaV expression profiles also differ we used RNAseq and qPCR on gonadal, mesenteric, retroperitoneal, and inguinal subcutaneous fat depots from rats of different ages and sex. CaV expression was found dependent on age, sex, and WFA location. In the gonadal depots of both sexes a significantly lower expression of CaV1.2 and CaV1.3 was seen for adults compared to pre-pubescent juveniles. A lower level of expression was also seen for CaV3.1 in adult male but not female gonadal WFA, the latter of whose expression remained unchanged with age. Relatively little expression of CaV3.2 and 3.2 was observed. In post-pubescent inguinal subcutaneous fat, where the third and fourth mammary glands are located, CaV3.1 was decreased in males but increased in females - thus suggesting that this channel is associated with mammogenesis; however, no difference in intracellular Ca2+ levels or adipocyte size were noted. For all adult depots, CaV3.1 expression was larger in females than males - a difference not seen in pre-pubescent rats. These observations are consistent with the changes of CaV3.1 expression seen in 3T3-L1 cell differentiation and the ability of selective CaV3.1 antagonists to inhibit adipogensis. Our results show that changes in CaV expression patterns occur in fat depots related to sexual dimorphism: reproductive tracts and mammogenesis.
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Affiliation(s)
- Yan Meng
- School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham, UK
| | - Maria Toledo-Rodriguez
- School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham, UK
| | - Olena Fedorenko
- School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham, UK
| | - Paul A Smith
- School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham, UK
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2
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Sunassee ED, Deutsch RJ, D’Agostino VW, Castellano-Escuder P, Siebeneck EA, Ilkayeva O, Crouch BT, Madonna MC, Everitt J, Alvarez JV, Palmer GM, Hirschey MD, Ramanujam N. Optical imaging reveals chemotherapy-induced metabolic reprogramming of residual disease and recurrence. Sci Adv 2024; 10:eadj7540. [PMID: 38579004 PMCID: PMC10997195 DOI: 10.1126/sciadv.adj7540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 03/04/2024] [Indexed: 04/07/2024]
Abstract
Fewer than 20% of triple-negative breast cancer patients experience long-term responses to mainstay chemotherapy. Resistant tumor subpopulations use alternative metabolic pathways to escape therapy, survive, and eventually recur. Here, we show in vivo, longitudinal metabolic reprogramming in residual disease and recurrence of triple-negative breast cancer xenografts with varying sensitivities to the chemotherapeutic drug paclitaxel. Optical imaging coupled with metabolomics reported an increase in non-glucose-driven mitochondrial metabolism and an increase in intratumoral metabolic heterogeneity during regression and residual disease in resistant MDA-MB-231 tumors. Conversely, sensitive HCC-1806 tumors were primarily reliant on glucose uptake and minimal changes in metabolism or heterogeneity were observed over the tumors' therapeutic life cycles. Further, day-matched resistant HCC-1806 tumors revealed a higher reliance on mitochondrial metabolism and elevated metabolic heterogeneity compared to sensitive HCC-1806 tumors. Together, metabolic flexibility, increased reliance on mitochondrial metabolism, and increased metabolic heterogeneity are defining characteristics of persistent residual disease, features that will inform the appropriate type and timing of therapies.
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Affiliation(s)
| | - Riley J. Deutsch
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | | | - Pol Castellano-Escuder
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Durham, NC, USA
- Department of Pharmacology and Cancer Biology, School of Medicine, Duke University, Durham, NC, USA
- Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC, USA
| | | | - Olga Ilkayeva
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Durham, NC, USA
- Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC, USA
| | - Brian T. Crouch
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Megan C. Madonna
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Jeffrey Everitt
- Department of Pathology, School of Medicine, Duke University, Durham, NC, USA
| | - James V. Alvarez
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | | | - Matthew D. Hirschey
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Durham, NC, USA
- Department of Pharmacology and Cancer Biology, School of Medicine, Duke University, Durham, NC, USA
- Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC, USA
| | - Nirmala Ramanujam
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Radiation Oncology, Duke University, Durham, NC, USA
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3
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Kivlighan KT, Schneider SS, Browne EP, Pentecost BT, Anderton DL, Arcaro KF. Mammary epithelium permeability during established lactation: associations with cytokine levels in human milk. Front Nutr 2024; 11:1258905. [PMID: 38419845 PMCID: PMC10900798 DOI: 10.3389/fnut.2024.1258905] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/26/2024] [Indexed: 03/02/2024] Open
Abstract
Objective The cytokine profile of human milk may be a key indicator of mammary gland health and has been linked to infant nutrition, growth, and immune system development. The current study examines the extent to which mammary epithelium permeability (MEP) is associated with cytokine profiles during established lactation within a sample of US mothers. Methods Participants were drawn from a previous study of human milk cytokines. The present analysis includes 162 participants (98 Black, 64 White) with infants ranging from 1 to 18 months of age. Levels of cytokines were determined previously. Here we measure milk sodium (Na) and potassium (K) levels with ion-selective probes. Two approaches were used to define elevated MEP: Na levels ≥10 mmol/L and Na/K ratios greater than 0.6. Associations between maternal-infant characteristics, elevated MEP, and twelve analytes (IL-6, IL-8, TNFα, IL-1β, FASL, VEGFD, FLT1, bFGF, PLGF, EGF, leptin, adiponectin) were examined using bivariate associations, principal components analysis, and multivariable logistic regression models. Results Elevated MEP was observed in 12 and 15% of milk samples as defined by Na and Na/K cutoffs, respectively. The odds of experiencing elevated MEP (defined by Na ≥ 10 mmol/L) were higher among Black participants and declined with older infant age. All cytokines, except leptin, were positively correlated with either Na or the Na/K ratio. A pro-inflammatory factor (IL-6, IL-8, TNFα, IL-1β, EGF) and a tissue remodeling factor (FASL, VEGFD, FLT1, bFGF, PLGF, adiponectin) each contributed uniquely to raising the odds of elevated MEP as defined by either Na or the Na/K ratio. Conclusion This exploratory analysis of MEP and cytokine levels during established lactation indicates that elevated MEP may be more common in US populations than previously appreciated and that individuals identifying as Black may have increased odds of experiencing elevated MEP based on current definitions. Research aimed at understanding the role of MEP in mammary gland health or infant growth and development should be prioritized.
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Affiliation(s)
- Katie T. Kivlighan
- College of Nursing, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Sallie S. Schneider
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA, United States
| | - Eva P. Browne
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, United States
| | - Brian T. Pentecost
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, United States
| | - Douglas L. Anderton
- Department of Sociology, University of South Carolina, Columbia, SC, United States
| | - Kathleen F. Arcaro
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, United States
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4
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Yamaguchi K, Nakayama J, Yamamoto T, Semba K, Shirota T, Yamamoto Y. Collagen induction of immune cells in the mammary glands during pregnancy. Physiol Genomics 2024; 56:128-135. [PMID: 37955336 DOI: 10.1152/physiolgenomics.00098.2023] [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: 08/28/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 11/14/2023] Open
Abstract
The mammary glands are dynamic tissues affected by pregnancy-related hormones during the pregnancy-lactation cycle. Collagen production and its dynamics are essential to the remodeling of the mammary glands. Alterations of the mammary microenvironment and stromal cells during the pregnancy-lactation cycle are important for understanding the physiology of the mammary glands and the development of breast tumors. In this study, we performed an evaluation of collagen dynamics in the mammary fat pad during the pregnancy-lactation cycle. Reanalysis of single-cell RNA-sequencing (scRNA-Seq) data showed the ectopic collagen expression in the immune cells and cell-cell interactions for collagens with single-cell resolution. The scRNA-Seq data showed that type I and type III collagen were produced not only by stromal fibroblasts but also by lymphoid and myeloid cell types in the pregnancy phase. Furthermore, the total cell-cell interaction score for collagen interactions was dramatically increased in the pregnancy tissue. The data presented in this study provide evidence that immune cells contribute, at least in part, to mammary collagen dynamics. Our findings suggest that immune cells, including lymphoid and myeloid cells, might be supportive members of the extracellular matrix orchestration in the pregnancy-lactation cycle of the mammary glands.NEW & NOTEWORTHY Our study evaluated mammary gland collagen dynamics during the pregnancy-lactation cycle using single-cell RNA-sequencing data. We found ectopic collagen expression in immune cells and an increase in collagen interactions during pregnancy. Type I and type III collagen were produced by lymphoid, myeloid, and stromal fibroblast cells during pregnancy. These findings suggest that immune cells, including lymphoid and myeloid cells, play a crucial role in supporting the extracellular matrix in mammary glands during pregnancy-lactation cycles.
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Affiliation(s)
- Karen Yamaguchi
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
- Department of Oral and Maxillofacial Surgery, Showa University School of Dentistry, Tokyo, Japan
| | - Jun Nakayama
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
- Department of Oncogenesis and Growth Regulation, Research Institute, Osaka International Cancer Institute, Osaka, Japan
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Tomofumi Yamamoto
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Kanagawa, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
- Translational Research Center, Fukushima Medical University, Fukushima, Japan
| | - Tatsuo Shirota
- Department of Oral and Maxillofacial Surgery, Showa University School of Dentistry, Tokyo, Japan
| | - Yusuke Yamamoto
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
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5
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Ortiz JR, Lewis SM, Ciccone M, Chatterjee D, Henry S, Siepel A, Dos Santos CO. Single-Cell Transcription Mapping of Murine and Human Mammary Organoids Responses to Female Hormones. J Mammary Gland Biol Neoplasia 2024; 29:3. [PMID: 38289401 PMCID: PMC10827859 DOI: 10.1007/s10911-023-09553-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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/18/2023] [Indexed: 02/01/2024] Open
Abstract
During female adolescence and pregnancy, rising levels of hormones result in a cyclic source of signals that control the development of mammary tissue. While such alterations are well understood from a whole-gland perspective, the alterations that such hormones bring to organoid cultures derived from mammary glands have yet to be fully mapped. This is of special importance given that organoids are considered suitable systems to understand cross species breast development. Here we utilized single-cell transcriptional profiling to delineate responses of murine and human normal breast organoid systems to female hormones across evolutionary distinct species. Collectively, our study represents a molecular atlas of epithelial dynamics in response to estrogen and pregnancy hormones.
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Affiliation(s)
| | - Steven M Lewis
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, 11724, USA
- Graduate Program in Genetics, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Michael Ciccone
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, 11724, USA
| | | | - Samantha Henry
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, 11724, USA
- Graduate Program in Genetics, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Adam Siepel
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, 11724, USA
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6
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Hurtado MD, Tama E, D'Andre S, Shufelt CL. The relation between excess adiposity and breast cancer in women: Clinical implications and management. Crit Rev Oncol Hematol 2024; 193:104213. [PMID: 38008197 PMCID: PMC10843740 DOI: 10.1016/j.critrevonc.2023.104213] [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: 09/07/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023] Open
Abstract
BACKGROUND Breast cancer (BC) is the most common cancer in women. While the combination of improved screening, earlier detection, and advances in therapeutics has resulted in lower BC mortality, BC survivors are now increasingly dying of cardiovascular disease. Cardiovascular disease in the leading cause of non-cancer related mortality among BC survivors. This situation underscores the critical need to research the role of modifiable cardiometabolic risk factors, such as excess adiposity, that will affect BC remission, long-term survivorship, and overall health and quality of life. PURPOSE First, this review summarizes the evidence on the connection between adipose tissue and BC. Then we review the data on weight trends after BC diagnosis with a focus on the effect of weight gain on BC recurrence and BC- and non-BC-related death. Finally, we provide a guide for weight management in BC survivors, considering the available data on the effect of weight loss interventions on BC.
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Affiliation(s)
- Maria D Hurtado
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Jacksonville, FL, USA; Precision Medicine for Obesity Program, Mayo Clinic, Rochester, MN, USA.
| | - Elif Tama
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Jacksonville, FL, USA; Precision Medicine for Obesity Program, Mayo Clinic, Rochester, MN, USA
| | - Stacey D'Andre
- Division of Medical Oncology, Mayo Clinic, Rochester, MN, USA
| | - Chrisandra L Shufelt
- Center for Women's Health, Division of General Internal Medicine, Jacksonville, FL, USA
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7
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Zakic T, Pekovic-Vaughan V, Cvoro A, Korac A, Jankovic A, Korac B. Redox and metabolic reprogramming in breast cancer and cancer-associated adipose tissue. FEBS Lett 2023. [PMID: 38140817 DOI: 10.1002/1873-3468.14794] [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: 11/10/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Redox and metabolic processes are tightly coupled in both physiological and pathological conditions. In cancer, their integration occurs at multiple levels and is characterized by synchronized reprogramming both in the tumor tissue and its specific but heterogeneous microenvironment. In breast cancer, the principal microenvironment is the cancer-associated adipose tissue (CAAT). Understanding how the redox-metabolic reprogramming becomes coordinated in human breast cancer is imperative both for cancer prevention and for the establishment of new therapeutic approaches. This review aims to provide an overview of the current knowledge of the redox profiles and regulation of intermediary metabolism in breast cancer while considering the tumor and CAAT of breast cancer as a unique Warburg's pseudo-organ. As cancer is now recognized as a systemic metabolic disease, we have paid particular attention to the cell-specific redox-metabolic reprogramming and the roles of estrogen receptors and circadian rhythms, as well as their crosstalk in the development, growth, progression, and prognosis of breast cancer.
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Affiliation(s)
- Tamara Zakic
- Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Serbia
| | - Vanja Pekovic-Vaughan
- Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, William Henry Duncan Building, University of Liverpool, UK
| | | | | | - Aleksandra Jankovic
- Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Serbia
| | - Bato Korac
- Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Serbia
- Faculty of Biology, University of Belgrade, Serbia
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Chen L, Ma J, Su G, Yin L, Jiang X, Wang X, Liu L, Zhang X, Xu X, Li S, Zhang G, Zhao R, Yu L. The dynamic nexus: exploring the interplay of BMI before, during, and after pregnancy with Metabolic Syndrome (MetS) risk in Chinese lactating women. BMC Public Health 2023; 23:2423. [PMID: 38053120 PMCID: PMC10699078 DOI: 10.1186/s12889-023-17344-6] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/27/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND AND AIM The health implications of BMI and MetS in lactating women are significant. This study aims to investigate the relationship between risk of Mets in lactation and BMI in four stages: pre-pregnancy, prenatal period, 42 days postpartum, and current lactation. METHODS AND RESULTS A total of 1870 Lactating Women within 2 years after delivery were included from "China Child and Lactating Mother Nutrition Health Surveillance (2016-2017)". Logistic regression model and Restricted cubic spline (RCS) were used to estimate the relationship between BMI and risk of MetS. ROC analysis was used to determine the threshold for the risk of MetS. Chain mediating effect analysis was used to verify the mediating effect. BMI of MetS group in all stages were higher than non-MetS group (P < 0.0001). There were significant positive correlations between BMI in each stage and ORs of MetS during lactation (P < 0.05). The best cut-off values for BMI in the four stages were 23.47, 30.49, 26.04 and 25.47 kg/m2. The non-linear spline test at BMI in 42 days postpartum, current and MetS in lactation was statistically significant (P non-linear = 0.0223, 0.0003). The mediation effect of all chains have to work through lactation BMI. The total indirect effect accounted for 80.95% of the total effect. CONCLUSIONS The risk of MetS in lactating women is due to a high BMI base before pregnancy and postpartum. High BMI in all stages of pregnancy and postpartum were risk factors for MetS in lactation. BMI during lactation plays a key role in the risk of MetS.
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Affiliation(s)
- Liangxia Chen
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Jie Ma
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Guanmin Su
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Longlong Yin
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Xiuyu Jiang
- Health Management Center, Central Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Xiangxiang Wang
- Department of Gynecology, Central Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Lele Liu
- Department of Gynecology, Central Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Xiaofei Zhang
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Xiaohui Xu
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Suyun Li
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Gaohui Zhang
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China
| | - Ran Zhao
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China.
| | - Lianlong Yu
- Shandong Center for Disease Control and Prevention, Ji'nan, Shandong, China.
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9
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Lang L, Zheng J, Liang S, Zhang F, Fu Y, Deng K, Li F, Yang X, Wang J, Luo Y, Zhang S, Zhu X, Wang L, Gao P, Zhu C, Shu G, Xi Q, Zhang Y, Jiang Q, Wang S. Browning of Mammary Fat Suppresses Pubertal Mammary Gland Development of Mice via Elevation of Serum Phosphatidylcholine and Inhibition of PI3K/Akt Pathway. Int J Mol Sci 2023; 24:16171. [PMID: 38003364 PMCID: PMC10671055 DOI: 10.3390/ijms242216171] [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: 08/12/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Mammary fat plays a profound role in the postnatal development of mammary glands. However, the specific types (white, brown, or beige) of adipocytes in mammary fat and their potential regulatory effects on modulating mammary gland development remain poorly understood. This study aimed to investigate the role of the browning of mammary fat on pubertal mammary gland development and explore the underlying mechanisms. Thus, the mammary gland development and the serum lipid profile were evaluated in mice treated with CL316243, a β3-adrenoceptor agonist, to induce mammary fat browning. In addition, the proliferation of HC11 cells co-cultured with brown adipocytes or treated with the altered serum lipid metabolite was determined. Our results showed that the browning of mammary fat by injection of CL316243 suppressed the pubertal development of mice mammary glands, accompanied by the significant elevation of serum dioleoylphosphocholine (DOPC). In addition, the proliferation of HC11 was repressed when co-cultured with brown adipocytes or treated with DOPC. Furthermore, DOPC suppressed the activation of the PI3K/Akt pathway, while the DOPC-inhibited HC11 proliferation was reversed by SC79, an Akt activator, suggesting the involvement of the PI3K/Akt pathway in the DOPC-inhibited proliferation of HC11. Together, the browning of mammary fat suppressed the development of the pubertal mammary gland, which was associated with the elevated serum DOPC and the inhibition of the PI3K/Akt pathway.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Songbo Wang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (L.L.); (J.Z.); (S.L.); (F.Z.); (Y.F.); (K.D.); (F.L.); (X.Y.); (J.W.); (Y.L.); (S.Z.); (X.Z.); (L.W.); (P.G.); (C.Z.); (G.S.); (Q.X.); (Y.Z.); (Q.J.)
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10
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Fan Y, Jin L, He Z, Wei T, Luo T, Zhang J, Liu C, Dai C, A C, Liang Y, Tao X, Lv X, Gu Y, Li M. A cell transcriptomic profile provides insights into adipocytes of porcine mammary gland across development. J Anim Sci Biotechnol 2023; 14:126. [PMID: 37805503 PMCID: PMC10560433 DOI: 10.1186/s40104-023-00926-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/03/2023] [Indexed: 10/09/2023] Open
Abstract
BACKGROUND Studying the composition and developmental mechanisms in mammary gland is crucial for healthy growth of newborns. The mammary gland is inherently heterogeneous, and its physiological function dependents on the gene expression of multiple cell types. Most studies focused on epithelial cells, disregarding the role of neighboring adipocytes. RESULTS Here, we constructed the largest transcriptomic dataset of porcine mammary gland cells thus far. The dataset captured 126,829 high-quality nuclei from physiological mammary glands across five developmental stages (d 90 of gestation, G90; d 0 after lactation, L0; d 20 after lactation, L20; 2 d post natural involution, PI2; 7 d post natural involution, PI7). Seven cell types were identified, including epithelial cells, adipocytes, endothelial cells, fibroblasts cells, immune cells, myoepithelial cells and precursor cells. Our data indicate that mammary glands at different developmental stages have distinct phenotypic and transcriptional signatures. During late gestation (G90), the differentiation and proliferation of adipocytes were inhibited. Meanwhile, partly epithelial cells were completely differentiated. Pseudo-time analysis showed that epithelial cells undergo three stages to achieve lactation, including cellular differentiation, hormone sensing, and metabolic activation. During lactation (L0 and L20), adipocytes area accounts for less than 0.5% of mammary glands. To maintain their own survival, the adipocyte exhibited a poorly differentiated state and a proliferative capacity. Epithelial cells initiate lactation upon hormonal stimulation. After fulfilling lactation mission, their undergo physiological death under high intensity lactation. Interestingly, the physiological dead cells seem to be actively cleared by immune cells via CCL21-ACKR4 pathway. This biological process may be an important mechanism for maintaining homeostasis of the mammary gland. During natural involution (PI2 and PI7), epithelial cell populations dedifferentiate into mesenchymal stem cells to maintain the lactation potential of mammary glands for the next lactation cycle. CONCLUSION The molecular mechanisms of dedifferentiation, proliferation and redifferentiation of adipocytes and epithelial cells were revealed from late pregnancy to natural involution. This cell transcriptomic profile constitutes an essential reference for future studies in the development and remodeling of the mammary gland at different stages.
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Affiliation(s)
- Yongliang Fan
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Southwest Minzu University, Chengdu, 610041 China
| | - Long Jin
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Zhiping He
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610000 China
| | - Tiantian Wei
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Tingting Luo
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Jiaman Zhang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Can Liu
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Changjiu Dai
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Chao A
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
| | - Yan Liang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610000 China
| | - Xuan Tao
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610000 China
| | - Xuebin Lv
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610000 China
| | - Yiren Gu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Southwest Minzu University, Chengdu, 610041 China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610000 China
| | - Mingzhou Li
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130 China
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11
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Ortiz JR, Lewis SM, Ciccone MF, Chatterjee D, Henry S, Siepel A, Dos Santos CO. Single-cell transcription mapping of murine and human mammary organoids responses to female hormones. bioRxiv 2023:2023.09.28.559971. [PMID: 37808747 PMCID: PMC10557705 DOI: 10.1101/2023.09.28.559971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
During female adolescence and pregnancy, rising levels of hormones result in a cyclic source of signals that control the development of mammary tissue. While such alterations are well understood from a whole-gland perspective, the alterations that such hormones bring to organoid cultures derived from mammary glands have yet to be fully mapped. This is of special importance given that organoids are considered suitable systems to understand cross species breast development. Here we utilized single-cell transcriptional profiling to delineate responses of murine and human normal breast organoid systems to female hormones across evolutionary distinct species. Collectively, our study represents a molecular atlas of epithelial dynamics in response to estrogen and pregnancy hormones.
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12
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Dzięgelewska-Sokołowska Ż, Majewska A, Prostek A, Gajewska M. Adipocyte-Derived Paracrine Factors Regulate the In Vitro Development of Bovine Mammary Epithelial Cells. Int J Mol Sci 2023; 24:13348. [PMID: 37686154 PMCID: PMC10487751 DOI: 10.3390/ijms241713348] [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: 08/07/2023] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
The mammary gland is composed of epithelial tissue forming ducts and lobules, and the stroma, composed of adipocytes, connective tissue, and other cell types. The stromal microenvironment regulates mammary gland development by paracrine and cell-cell interactions. In the present study, primary cultures of bovine mammary epithelial cells (bMEC) and bovine adipose-derived stem cells (bASC) subjected to adipogenic differentiation were used to investigate the influence of paracrine factors secreted by preadipocytes and adipocytes on bMEC development. Four types of conditioned media (CM) were collected from undifferentiated preadipocytes (preA) and adipocytes on days: 8, 12, 14 of differentiation. Next, bMEC were cultured for 24 h in CM and cell viability, apoptosis, migratory activity, ability to form spheroids on Matrigel, and secretory activity (alpha S1-casein concentration) were evaluated. CM derived from fully differentiated adipocytes (12 d and 14 d) significantly decreased the number of apoptotic cells in bMEC population and increased the size of spheroids formed by bMEC on Matrigel. CM collected from preadipocytes significantly enhanced bMEC's migration, and stimulated bMEC to produce alpha S1-casein, but only in the presence of prolactin. These results confirm that preadipocytes and adipocytes are important components of the stroma, providing paracrine factors that actively regulate the development of bovine mammary epithelium.
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Affiliation(s)
| | | | | | - Małgorzata Gajewska
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159b, 02-776 Warsaw, Poland; (Ż.D.-S.); (A.M.); (A.P.)
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13
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Lichtiger L, Jezioro J, Rivera J, McDonald JD, Terry MB, Sahay D, Miller RL. Prenatal airborne polycyclic aromatic hydrocarbon exposure, altered regulation of peroxisome proliferator-activated receptor gamma (Ppar)γ, and links with mammary cancer. Environ Res 2023; 231:116213. [PMID: 37224940 PMCID: PMC10330651 DOI: 10.1016/j.envres.2023.116213] [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] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/11/2023] [Accepted: 05/20/2023] [Indexed: 05/26/2023]
Abstract
Environmental exposure to polycyclic aromatic hydrocarbons (PAH) has been shown to be associated with chronic disease outcomes through multiple mechanisms including altered regulation of the transcription factor peroxisome proliferator-activated receptor gamma (Ppar) γ. Because PAH exposure and Pparγ each have been associated with mammary cancer, we asked whether PAH would induce altered regulation of Pparγ in mammary tissue, and whether this association may underlie the association between PAH and mammary cancer. Pregnant mice were exposed to aerosolized PAH at proportions that mimic equivalent human exposures in New York City air. We hypothesized that prenatal PAH exposure would alter Pparγ DNA methylation and gene expression and induce the epithelial to mesenchymal transition (EMT) in mammary tissue of offspring (F1) and grandoffspring (F2) mice. We also hypothesized that altered regulation of Pparγ in mammary tissue would associate with biomarkers of EMT, and examined associations with whole body weight. We found that prenatal PAH exposure lowered Pparγ mammary tissue methylation among grandoffspring mice at postnatal day (PND) 28. However, PAH exposure did not associate with altered Pparγ gene expression or consistently with biomarkers of EMT. Finally, lower Pparγ methylation, but not gene expression, was associated with higher body weight among offspring and grandoffspring mice at PND28 and PND60. Findings suggest additional evidence of multi-generational adverse epigenetic effects of prenatal PAH exposure among grandoffspring mice.
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Affiliation(s)
- Lydia Lichtiger
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine, Mount Sinai, New York City, NY, United States
| | - Jacqueline Jezioro
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine, Mount Sinai, New York City, NY, United States
| | - Janelle Rivera
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine, Mount Sinai, New York City, NY, United States
| | - Jacob D McDonald
- Department of Toxicology, Lovelace Respiratory Research Institute, Albuquerque, NM, United States
| | - Mary Beth Terry
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York City, NY, United States; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York City, NY, United States
| | - Debashish Sahay
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine, Mount Sinai, New York City, NY, United States
| | - Rachel L Miller
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine, Mount Sinai, New York City, NY, United States.
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14
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Wang W, Chen H, Yin S, Yang Z, Zhang F. Targeting adipocyte-immune cell crosstalk to control breast cancer progression. J Cancer Res Clin Oncol 2023; 149:7969-7979. [PMID: 36914785 DOI: 10.1007/s00432-023-04685-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 03/05/2023] [Indexed: 03/16/2023]
Abstract
Adipocytes are crucial components of breast cancer and are involved in regulating the progression, therapeutic efficacy, and prognosis of breast cancer patients. Characterized by storing energy and producing a variety of secretory factors, adipocytes are responsible for inducing obesity and regulating the tumor immune activity. Adipocytes communicate with tumor infiltrating immune cells through the secreted adipokines, cytokines, and exosomes in the breast cancer TIME, which shapes the tumor supporting environment to facilitate the immune escape of tumor cells. In-depth studies of the crosstalk between adipocytes and TIME can not only provide a more comprehensive regulatory landscape of TIME, but also be conducive to screening novel targets for future precision targeted therapy. The aim of this review is to discuss recent studies for understanding the role of crosstalk between adipocytes and immune cells in shaping the breast cancer immune microenvironment.
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Affiliation(s)
- Weihua Wang
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, 118 Xingguang Avenue, Chongqing, 401147, People's Republic of China
| | - Hongdan Chen
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, 118 Xingguang Avenue, Chongqing, 401147, People's Republic of China
| | - Supeng Yin
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, 118 Xingguang Avenue, Chongqing, 401147, People's Republic of China
| | - Zeyu Yang
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, 118 Xingguang Avenue, Chongqing, 401147, People's Republic of China.
| | - Fan Zhang
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, 118 Xingguang Avenue, Chongqing, 401147, People's Republic of China.
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15
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Kumar T, Nee K, Wei R, He S, Nguyen QH, Bai S, Blake K, Pein M, Gong Y, Sei E, Hu M, Casasent AK, Thennavan A, Li J, Tran T, Chen K, Nilges B, Kashikar N, Braubach O, Ben Cheikh B, Nikulina N, Chen H, Teshome M, Menegaz B, Javaid H, Nagi C, Montalvan J, Lev T, Mallya S, Tifrea DF, Edwards R, Lin E, Parajuli R, Hanson S, Winocour S, Thompson A, Lim B, Lawson DA, Kessenbrock K, Navin N. A spatially resolved single-cell genomic atlas of the adult human breast. Nature 2023; 620:181-191. [PMID: 37380767 DOI: 10.1038/s41586-023-06252-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 05/23/2023] [Indexed: 06/30/2023]
Abstract
The adult human breast is comprised of an intricate network of epithelial ducts and lobules that are embedded in connective and adipose tissue1-3. Although most previous studies have focused on the breast epithelial system4-6, many of the non-epithelial cell types remain understudied. Here we constructed the comprehensive Human Breast Cell Atlas (HBCA) at single-cell and spatial resolution. Our single-cell transcriptomics study profiled 714,331 cells from 126 women, and 117,346 nuclei from 20 women, identifying 12 major cell types and 58 biological cell states. These data reveal abundant perivascular, endothelial and immune cell populations, and highly diverse luminal epithelial cell states. Spatial mapping using four different technologies revealed an unexpectedly rich ecosystem of tissue-resident immune cells, as well as distinct molecular differences between ductal and lobular regions. Collectively, these data provide a reference of the adult normal breast tissue for studying mammary biology and diseases such as breast cancer.
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Affiliation(s)
- Tapsi Kumar
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
- Graduate School of Biomedical Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Kevin Nee
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA, USA
| | - Runmin Wei
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Siyuan He
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
- Graduate School of Biomedical Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Quy H Nguyen
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA, USA
| | - Shanshan Bai
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Kerrigan Blake
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, USA
- Math, Computational & Systems Biology, University of California, Irvine, Irvine, CA, USA
| | - Maren Pein
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA, USA
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, USA
| | - Yanwen Gong
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA, USA
- Math, Computational & Systems Biology, University of California, Irvine, Irvine, CA, USA
| | - Emi Sei
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Min Hu
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Anna K Casasent
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Aatish Thennavan
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Jianzhuo Li
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Tuan Tran
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, UT MD Anderson Cancer Center, Houston, TX, USA
| | | | | | | | | | | | - Hui Chen
- Department of Pathology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Mediget Teshome
- Department of Breast Surgical Oncology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Brian Menegaz
- Department of Pathology and Immunology, Baylor Medical College, Houston, TX, USA
| | - Huma Javaid
- Department of Pathology and Immunology, Baylor Medical College, Houston, TX, USA
| | - Chandandeep Nagi
- Department of Pathology and Immunology, Baylor Medical College, Houston, TX, USA
| | - Jessica Montalvan
- Department of Pathology and Immunology, Baylor Medical College, Houston, TX, USA
| | - Tatyana Lev
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, USA
- Math, Computational & Systems Biology, University of California, Irvine, Irvine, CA, USA
| | - Sharmila Mallya
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, USA
| | - Delia F Tifrea
- Chao Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA
| | - Robert Edwards
- Chao Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA
| | - Erin Lin
- Chao Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA
| | - Ritesh Parajuli
- Chao Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA
| | - Summer Hanson
- Department of Surgery, University of Chicago Medicine, Chicago, IL, USA
| | | | | | - Bora Lim
- Department of Medicine, Section of Hematology and Oncology, Baylor College of Medicine, Houston, TX, USA
| | - Devon A Lawson
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, USA.
| | - Kai Kessenbrock
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA, USA.
| | - Nicholas Navin
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX, USA.
- Graduate School of Biomedical Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Department of Bioinformatics and Computational Biology, UT MD Anderson Cancer Center, Houston, TX, USA.
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16
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Cinti S. Obese Adipocytes Have Altered Redox Homeostasis with Metabolic Consequences. Antioxidants (Basel) 2023; 12:1449. [PMID: 37507987 PMCID: PMC10376822 DOI: 10.3390/antiox12071449] [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: 06/21/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
White and brown adipose tissues are organized to form a real organ, the adipose organ, in mice and humans. White adipocytes of obese animals and humans are hypertrophic. This condition is accompanied by a series of organelle alterations and stress of the endoplasmic reticulum. This stress is mainly due to reactive oxygen species activity and accumulation, lending to NLRP3 inflammasome activation. This last causes death of adipocytes by pyroptosis and the formation of large cellular debris that must be removed by macrophages. During their chronic scavenging activity, macrophages produce several secretory products that have collateral consequences, including interference with insulin receptor activity, causing insulin resistance. The latter is accompanied by an increased noradrenergic inhibitory innervation of Langerhans islets with de-differentiation of beta cells and type 2 diabetes. The whitening of brown adipocytes could explain the different critical death size of visceral adipocytes and offer an explanation for the worse clinical consequence of visceral fat accumulation. White to brown transdifferentiation has been proven in mice and humans. Considering the energy-dispersing activity of brown adipose tissue, transdifferentiation opens new therapeutic perspectives for obesity and related disorders.
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Affiliation(s)
- Saverio Cinti
- Scientific Director Centre of Obesity, Marche Polytechnic University, Via Tronto 10a, 60126 Ancona, Italy
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17
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Hanin G, Ferguson-Smith AC. Mammary adipocyte flow cytometry as a tool to study mammary gland biology. FEBS Open Bio 2023; 13:1218-1227. [PMID: 37394996 DOI: 10.1002/2211-5463.13620] [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: 12/12/2022] [Revised: 04/21/2023] [Accepted: 05/02/2023] [Indexed: 07/04/2023] Open
Abstract
The mammary gland is a vital exocrine organ that has evolved in mammals to secrete milk and provide nutrition to ensure the growth and survival of the neonate The mouse mammary gland displays extraordinary plasticity each time the female undergoes pregnancy and lactation, including a sophisticated process of tertiary branching and alveologenesis to form a branched epithelial tree and subsequently milk-producing alveoli. Upon the cessation of lactation, the gland remodels back to a simple ductal architecture via highly regulated involution processes. At the cellular level, the plasticity is characterised by proliferation of mammary cell populations, differentiation and apoptosis, accompanied by major changes in cell function and morphology. The mammary epithelium requires a specific stromal environment to grow, known as the mammary fat pad. Mammary adipocytes are one of the most prominent cell types in the fat pad, but despite their vast proportion in the tissue and their crucial interaction with epithelial cells, their physiology remains largely unknown. Over the past decade, the need to understand the properties and contribution of mammary adipocytes has become more recognised. However, the development of adequate methods and protocols to study this cellular niche is still lagging, partially due to their fragile nature, the difficulty of isolating them, the lack of reliable cell surface markers and the heterogenous environment in this tissue, which differs from other adipocyte depots. Here, we describe a new rapid and simple flow cytometry protocol specifically designed for the analysis and isolation of mouse mammary adipocytes across mammary gland developmental stages.
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Affiliation(s)
- Geula Hanin
- Department of Genetics, University of Cambridge, UK
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18
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Kumar T, Nee K, Wei R, He S, Nguyen QH, Bai S, Blake K, Gong Y, Pein M, Sei E, Hu M, Casasent A, Thennavan A, Li J, Tran T, Chen K, Nilges B, Kashikar N, Braubach O, Cheikh BB, Nikulina N, Chen H, Teshome M, Menegaz B, Javaid H, Nagi C, Montalvan J, Tifrea DF, Edwards R, Lin E, Parajuli R, Winocour S, Thompson A, Lim B, Lawson DA, Kessenbrock K, Navin N. A spatially resolved single cell genomic atlas of the adult human breast. bioRxiv 2023:2023.04.22.537946. [PMID: 37163043 PMCID: PMC10168262 DOI: 10.1101/2023.04.22.537946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The adult human breast comprises an intricate network of epithelial ducts and lobules that are embedded in connective and adipose tissue. While previous studies have mainly focused on the breast epithelial system, many of the non-epithelial cell types remain understudied. Here, we constructed a comprehensive Human Breast Cell Atlas (HBCA) at single-cell and spatial resolution. Our single-cell transcriptomics data profiled 535,941 cells from 62 women, and 120,024 nuclei from 20 women, identifying 11 major cell types and 53 cell states. These data revealed abundant pericyte, endothelial and immune cell populations, and highly diverse luminal epithelial cell states. Our spatial mapping using three technologies revealed an unexpectedly rich ecosystem of tissue-resident immune cells in the ducts and lobules, as well as distinct molecular differences between ductal and lobular regions. Collectively, these data provide an unprecedented reference of adult normal breast tissue for studying mammary biology and disease states such as breast cancer.
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19
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Neville MC, Demerath EW, Hahn-Holbrook J, Hovey RC, Martin-Carli J, McGuire MA, Newton ER, Rasmussen KM, Rudolph MC, Raiten DJ. Parental factors that impact the ecology of human mammary development, milk secretion, and milk composition-a report from "Breastmilk Ecology: Genesis of Infant Nutrition (BEGIN)" Working Group 1. Am J Clin Nutr 2023; 117 Suppl 1:S11-S27. [PMID: 37173058 DOI: 10.1016/j.ajcnut.2022.11.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [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: 06/10/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 05/15/2023] Open
Abstract
The goal of Working Group 1 in the Breastmilk Ecology: Genesis of Infant Nutrition (BEGIN) Project was to outline factors influencing biological processes governing human milk secretion and to evaluate our current knowledge of these processes. Many factors regulate mammary gland development in utero, during puberty, in pregnancy, through secretory activation, and at weaning. These factors include breast anatomy, breast vasculature, diet, and the lactating parent's hormonal milieu including estrogen, progesterone, placental lactogen, cortisol, prolactin, and growth hormone. We examine the effects of time of day and postpartum interval on milk secretion, along with the role and mechanisms of lactating parent-infant interactions on milk secretion and bonding, with particular attention to the actions of oxytocin on the mammary gland and the pleasure systems in the brain. We then consider the potential effects of clinical conditions including infection, pre-eclampsia, preterm birth, cardiovascular health, inflammatory states, mastitis, and particularly, gestational diabetes and obesity. Although we know a great deal about the transporter systems by which zinc and calcium pass from the blood stream into milk, the interactions and cellular localization of transporters that carry substrates such as glucose, amino acids, copper, and the many other trace metals present in human milk across plasma and intracellular membranes require more research. We pose the question of how cultured mammary alveolar cells and animal models can help answer lingering questions about the mechanisms and regulation of human milk secretion. We raise questions about the role of the lactating parent and the infant microbiome and the immune system during breast development, secretion of immune molecules into milk, and protection of the breast from pathogens. Finally, we consider the effect of medications, recreational and illicit drugs, pesticides, and endocrine-disrupting chemicals on milk secretion and composition, emphasizing that this area needs much more research attention.
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Affiliation(s)
- Margaret C Neville
- Department of Obstetrics and Gynecology, University of Colorado, Aurora, CO, USA.
| | - Ellen W Demerath
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, United States
| | - Jennifer Hahn-Holbrook
- Department of Psychological Sciences, University of California Merced, Merced, CA, United States
| | - Russell C Hovey
- Department of Animal Science, University of California Davis, Davis, CA, United States
| | - Jayne Martin-Carli
- Department of Pediatrics, University of Colorado, Aurora, CO, United States
| | - Mark A McGuire
- Idaho Agricultural Experiment Station, University of Idaho, Moscow, ID, United States
| | - Edward R Newton
- Department of Obstetrics and Gynecology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Kathleen M Rasmussen
- Nancy Schlegel Meinig Professor of Maternal and Child Nutrition, Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States
| | - Michael C Rudolph
- The University of Oklahoma Health Science Center, Oklahoma City, OK, United States
| | - Daniel J Raiten
- Pediatric Growth and Nutrition Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, United States
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20
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Grillo E, Ravelli C, Colleluori G, D'Agostino F, Domenichini M, Giordano A, Mitola S. Role of gremlin-1 in the pathophysiology of the adipose tissues. Cytokine Growth Factor Rev 2023; 69:51-60. [PMID: 36155165 DOI: 10.1016/j.cytogfr.2022.09.004] [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: 08/12/2022] [Accepted: 09/12/2022] [Indexed: 02/07/2023]
Abstract
Gremlin-1 is a secreted bone morphogenetic protein (BMP) antagonist playing a pivotal role in the regulation of tissue formation and embryonic development. Since its first identification in 1997, gremlin-1 has been shown to be a multifunctional factor involved in wound healing, inflammation, cancer and tissue fibrosis. Among others, the activity of gremlin-1 is mediated by its interaction with BMPs or with membrane receptors such as the vascular endothelial growth factor receptor 2 (VEGFR2) or heparan sulfate proteoglycans (HSPGs). Growing evidence has highlighted a central role of gremlin-1 in the homeostasis of the adipose tissue (AT). Of note, gremlin-1 is involved in AT dysfunction during type 2 diabetes, obesity and non-alcoholic fatty liver disease (NAFLD) metabolic disorders. In this review we discuss recent findings on gremlin-1 involvement in AT biology, with particular attention to its role in metabolic diseases, to highlight its potential as a prognostic marker and therapeutic target.
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Affiliation(s)
- Elisabetta Grillo
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
| | - Cosetta Ravelli
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Georgia Colleluori
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy
| | - Francesco D'Agostino
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Mattia Domenichini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy
| | - Stefania Mitola
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
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21
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Luzardo-Ocampo I, Dena-Beltrán JL, Ruiz-Herrera X, Ocampo-Ruiz AL, Martínez de la Escalera G, Clapp C, Macotela Y. Obesity-derived alterations in the lactating mammary gland: Focus on prolactin. Mol Cell Endocrinol 2023; 559:111810. [PMID: 36374835 DOI: 10.1016/j.mce.2022.111810] [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: 05/10/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 11/07/2022]
Abstract
Obesity is a modern pandemic with negative consequences in women's reproductive health. Women with overweight and obesity can develop mammary gland alterations that unable exclusive breastfeeding. Obesity associates with a disturbed lactating mammary gland endocrine environment including a decreased action of the hormone prolactin (PRL), the master regulator of lactation. The PRL receptor and the action of PRL are reduced in the mammary gland of lactating rodents fed an obesogenic diet and are contributing factors to impaired lactation in obesity. Also, treatment with PRL improves milk yield in women with lactation insufficiency. This review focuses on the impact of diet-induced obesity in the lactating mammary gland and how obesity impairs the lactogenic action of PRL. Although obesity alters lactation performance in humans and rodents, the responsible mechanisms have been mainly addressed in rodents.
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Affiliation(s)
- Ivan Luzardo-Ocampo
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico
| | - José L Dena-Beltrán
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico
| | - Xarubet Ruiz-Herrera
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico
| | - Ana Luisa Ocampo-Ruiz
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico
| | - Gonzalo Martínez de la Escalera
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico
| | - Carmen Clapp
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico
| | - Yazmín Macotela
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, Mexico.
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22
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Maxwell CV, Shirley R, O'Higgins AC, Rosser ML, O'Brien P, Hod M, O'Reilly SL, Medina VP, Smith GN, Hanson MA, Adam S, Ma RC, Kapur A, McIntyre HD, Jacobsson B, Poon LC, Bergman L, Regan L, Algurjia E, McAuliffe FM. Management of obesity across women's life course: FIGO Best Practice Advice. Int J Gynaecol Obstet 2023; 160 Suppl 1:35-49. [PMID: 36635081 PMCID: PMC10107516 DOI: 10.1002/ijgo.14549] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Obesity is a chronic, progressive, relapsing, and treatable multifactorial, neurobehavioral disease. According to the World Health Organization, obesity affects 15% of women and has long-term effects on women's health. The focus of care in patients with obesity should be on optimizing health outcomes rather than on weight loss. Appropriate and common language, considering cultural sensitivity and trauma-informed care, is needed to discuss obesity. Pregnancy is a time of significant physiological change. Pre-, ante-, and postpartum clinical encounters provide opportunities for health optimization for parents with obesity in terms of, but not limited to, fertility and breastfeeding. Pre-existing conditions may also be identified and managed. Beyond pregnancy, women with obesity are at an increased risk for gastrointestinal and liver diseases, impaired kidney function, obstructive sleep apnea, and venous thromboembolism. Gynecological and reproductive health of women living with obesity cannot be dismissed, with accommodations needed for preventive health screenings and consideration of increased risk for gynecologic malignancies. Mental wellness, specifically depression, should be screened and managed appropriately. Obesity is a complex condition and is increasing in prevalence with failure of public health interventions to achieve significant decrease. Future research efforts should focus on interprofessional care and discovering effective interventions for health optimization.
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Affiliation(s)
- Cynthia V Maxwell
- Maternal Fetal Medicine; Sinai Health and Women's College Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Rachelle Shirley
- Maternal Fetal Medicine, Sinai Health, University of Toronto, Toronto, Ontario, Canada
| | - Amy C O'Higgins
- Maternal Fetal Medicine, Sinai Health, University of Toronto, Toronto, Ontario, Canada
| | - Mary L Rosser
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York-Presbyterian, New York, New York, USA
| | - Patrick O'Brien
- Institute for Women's Health, University College London, London, UK
| | - Moshe Hod
- Helen Schneider Hospital for Women, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sharleen L O'Reilly
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland.,School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Virna P Medina
- Department of Obstetrics and Gynecology, Faculty of HealthUniversidad del Valle, Clínica Imbanaco Quirón Salud, Universidad Libre, Cali, Colombia
| | - Graeme N Smith
- Department of Obstetrics and Gynecology, Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada
| | - Mark A Hanson
- Institute of Developmental Sciences, University Hospital Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton, Southampton, UK
| | - Sumaiya Adam
- Department of Obstetrics and Gynecology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,Diabetes Research Centre, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Ronald C Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Anil Kapur
- World Diabetes Foundation, Bagsvaerd, Denmark
| | - Harold David McIntyre
- Mater Health, University of Queensland, Mater Health Campus, South Brisbane, Queensland, Australia
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Sahlgrenska University Hospital/Ostra, Gothenburg, Sweden.,Department of Genetics and Bioinformatics, Domain of Health Data and Digitalisation, Institute of Public Health, Oslo, Norway
| | - Liona C Poon
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China
| | - Lina Bergman
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics and Gynecology, Stellenbosch University, Cape Town, South Africa.,Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | | | - Esraa Algurjia
- The World Association of Trainees in Obstetrics & Gynecology, Paris, France.,Elwya Maternity Hospital, Baghdad, Iraq
| | - Fionnuala M McAuliffe
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
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23
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Boulet N, Briot A, Galitzky J, Bouloumié A. The Sexual Dimorphism of Human Adipose Depots. Biomedicines 2022; 10:2615. [PMID: 36289874 PMCID: PMC9599294 DOI: 10.3390/biomedicines10102615] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 08/19/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 08/21/2023] Open
Abstract
The amount and the distribution of body fat exhibit trajectories that are sex- and human species-specific and both are determinants for health. The enhanced accumulation of fat in the truncal part of the body as a risk factor for cardiovascular and metabolic diseases is well supported by epidemiological studies. In addition, a possible independent protective role of the gluteofemoral fat compartment and of the brown adipose tissue is emerging. The present narrative review summarizes the current knowledge on sexual dimorphism in fat depot amount and repartition and consequences on cardiometabolic and reproductive health. The drivers of the sex differences and fat depot repartition, considered to be the results of complex interactions between sex determination pathways determined by the sex chromosome composition, genetic variability, sex hormones and the environment, are discussed. Finally, the inter- and intra-depot heterogeneity in adipocytes and progenitors, emphasized recently by unbiased large-scale approaches, is highlighted.
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Affiliation(s)
| | | | | | - Anne Bouloumié
- Inserm, Unité Mixte de Recherche (UMR) 1297, Team 1, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université de Toulouse, F-31432 Toulouse, France
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24
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Yan XR, Shi T, Xiao JY, Liu YF, Zheng HL. In vitro transdifferentiated signatures of goat preadipocytes into mammary epithelial cells revealed by DNA methylation and transcriptome profiling. J Biol Chem 2022; 298:102604. [PMID: 36257406 PMCID: PMC9668736 DOI: 10.1016/j.jbc.2022.102604] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022] Open
Abstract
During mammary development, the transdifferentiation of mammary preadipocytes is one of the important sources for lactating mammary epithelial cells (MECs). However, there is limited knowledge about the mechanisms of dynamic regulation of transcriptome and genome-wide DNA methylation in the preadipocyte transdifferentiation process. Here, to gain more insight into these mechanisms, preadipocytes were isolated from adipose tissues from around the goat mammary gland (GM-preadipocytes). The GM-preadipocytes were cultured on Matrigel in conditioned media made from goat MECs to induce GM-preadipocyte-to-MEC transdifferentiation. The transdifferentiated GM-preadipocytes showed high abundance of keratin 18, which is a marker protein of MECs, and formed mammary acinar-like structures after 8 days of induction. Then, we performed transcriptome and DNA methylome profiling of the GM-preadipocytes and transdifferentiated GM-preadipocytes, respectively, and the differentially expressed genes and differentially methylated genes that play underlying roles in the process of transdifferentiation were obtained. Subsequently, we identified the candidate transcription factors in regulating the GM-preadipocyte-to-MEC transdifferentiation by transcription factor-binding motif enrichment analysis of differentially expressed genes and differentially methylated genes. Meanwhile, the secretory proteome of GM-preadipocytes cultured in conditioned media was also detected. By integrating the transcriptome, DNA methylome, and proteome, three candidate genes, four proteins, and several epigenetic regulatory axes were further identified, which are involved in regulation of the cell cycle, cell polarity establishment, cell adhesion, cell reprogramming, and adipocyte plasticity. These findings provide novel insights into the molecular mechanism of preadipocyte transdifferentiation and mammary development.
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25
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Napolitano F, Braghieri A, Bragaglio A, Rodríguez-González D, Mora-Medina P, Ghezzi MD, Álvarez-Macías A, Lendez PA, Sabia E, Domínguez-Oliva A, Jacome-Romero J, Mota-Rojas D. Neurophysiology of Milk Ejection and Prestimulation in Dairy Buffaloes. Animals (Basel) 2022; 12:2649. [PMID: 36230390 DOI: 10.3390/ani12192649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/13/2022] Open
Abstract
The present review aims to integrate the anatomical characteristics of the mammary gland and the neurophysiology of milk ejection to understand the milking capacity of the water buffalo. Since one of the main uses of this species is milk production, this article will analyze the controversies on the use of oxytocin as a stimulant during milking as well as the existing alternatives that farmers apply to promote correct stimulation during milk letdown. According to the available literature, the efficiency of the milking process, the quality of the milk, and the health of the animals are elements that require the consideration of species-specific characteristics to enhance the performance of buffaloes. The incorporation of technological innovations and competitive strategies could contribute to a better understanding of water buffalo in the milk industry.
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26
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Giordano A, Cinti F, Canese R, Carpinelli G, Colleluori G, Di Vincenzo A, Palombelli G, Severi I, Moretti M, Redaelli C, Partridge J, Zingaretti MC, Agostini A, Sternardi F, Giovagnoni A, Castorina S, Cinti S. The Adipose Organ Is a Unitary Structure in Mice and Humans. Biomedicines 2022; 10:biomedicines10092275. [PMID: 36140375 PMCID: PMC9496043 DOI: 10.3390/biomedicines10092275] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/03/2022] [Accepted: 09/08/2022] [Indexed: 12/03/2022] Open
Abstract
Obesity is the fifth leading cause of death worldwide. In mice and humans with obesity, the adipose organ undergoes remarkable morpho-functional alterations. The comprehension of the adipose organ function and organization is of paramount importance to understand its pathology and formulate future therapeutic strategies. In the present study, we performed anatomical dissections, magnetic resonance imaging, computed axial tomography and histological and immunohistochemical assessments of humans and mouse adipose tissues. We demonstrate that most of the two types of adipose tissues (white, WAT and brown, BAT) form a large unitary structure fulfilling all the requirements necessary to be considered as a true organ in both species. A detailed analysis of the gross anatomy of mouse adipose organs in different pathophysiological conditions (normal, cold, pregnancy, obesity) shows that the organ consists of a unitary structure composed of different tissues: WAT, BAT, and glands (pregnancy). Data from autoptic dissection of 8 cadavers, 2 females and 6 males (Age: 37.5 ± 9.7, BMI: 23 ± 2.7 kg/m2) and from detailed digital dissection of 4 digitalized cadavers, 2 females and 2 males (Age: 39 ± 14.2 years, BMI: 22.8 ± 4.3 kg/m2) confirmed the mixed (WAT and BAT) composition and the unitary structure of the adipose organ also in humans. Considering the remarkable endocrine roles of WAT and BAT, the definition of the endocrine adipose organ would be even more appropriate in mice and humans.
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Affiliation(s)
- A. Giordano
- Department of Experimental and Clinical Medicine, Center for the Study of Obesity, Marche Polytechnic University, 60126 Ancona, Italy
| | - F. Cinti
- UOS Centro Malattie Endocrine e Metaboliche, UOC Endocrinologia e Diabetologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Roma, Italy
| | - R. Canese
- MRI Unit-Core Facilities, Istituto Superiore di Sanità, 00161 Roma, Italy
| | - G. Carpinelli
- MRI Unit-Core Facilities, Istituto Superiore di Sanità, 00161 Roma, Italy
| | - G. Colleluori
- Department of Experimental and Clinical Medicine, Center for the Study of Obesity, Marche Polytechnic University, 60126 Ancona, Italy
| | - A. Di Vincenzo
- Department of Experimental and Clinical Medicine, Center for the Study of Obesity, Marche Polytechnic University, 60126 Ancona, Italy
| | - G. Palombelli
- MRI Unit-Core Facilities, Istituto Superiore di Sanità, 00161 Roma, Italy
| | - I. Severi
- Department of Experimental and Clinical Medicine, Center for the Study of Obesity, Marche Polytechnic University, 60126 Ancona, Italy
| | - M. Moretti
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | | | | | - M. C. Zingaretti
- Department of Experimental and Clinical Medicine, Center for the Study of Obesity, Marche Polytechnic University, 60126 Ancona, Italy
| | - A. Agostini
- Department of Clinical, Special and Dental Sciences, Marche Polytechnic University, 60126 Ancona, Italy
| | - F. Sternardi
- Department of Clinical, Special and Dental Sciences, Marche Polytechnic University, 60126 Ancona, Italy
| | - A. Giovagnoni
- Department of Clinical, Special and Dental Sciences, Marche Polytechnic University, 60126 Ancona, Italy
| | - S. Castorina
- Department of Medical and Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95121 Catania, Italy
| | - S. Cinti
- Department of Experimental and Clinical Medicine, Center for the Study of Obesity, Marche Polytechnic University, 60126 Ancona, Italy
- Correspondence:
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27
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Abstract
Obesity is a complex, multifactorial, and relapsing disease whose prevalence has tripled during the last decades and whose incidence is expected to further increase. For these reasons, obesity is considered as a real pandemic, deeply burdening the global health-care systems. From a pathophysiological standpoint obesity is the result of a chronic-positive energy balance which in turn leads to an excessive accumulation of lipids, not only within the adipose organ, but also in different cytotypes, a phenomenon leading to lipotoxicity that deeply compromises several cellular and organs functions. Obesity is therefore associated with over 200 medical complications, including insulin resistance and type 2 diabetes mellitus (T2DM) and represents the fifth leading cause of death worldwide. In this review, we describe the main pathophysiological mechanisms linking obesity-induced adipose organ dysfunction to insulin resistance and T2DM.
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28
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Cinti F, Cinti S. The Endocrine Adipose Organ: A System Playing a Central Role in COVID-19. Cells 2022; 11:cells11132109. [PMID: 35805193 PMCID: PMC9265618 DOI: 10.3390/cells11132109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/26/2022] [Accepted: 06/30/2022] [Indexed: 02/01/2023] Open
Abstract
In the last 30 years the adipose cell has been object of several studies, turning its reputation from an inert cell into the main character involved in the pathophysiology of multiple diseases, including the ongoing COVID-19 pandemic, which has changed the clinical scenario of the last two years. Composed by two types of tissue (white and brown), with opposite roles, the adipose organ is now classified as a real endocrine organ whose dysfunction is involved in different diseases, mainly obesity and type 2 diabetes. In this mini-review we aim to retrace the adipose organ history from physiology to physiopathology, to provide therapeutic perspectives for the prevention and treatment of its two main related diseases (obesity and type 2 diabetes) and to summarize the most recent discoveries linking adipose tissue to COVID-19.
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Affiliation(s)
- Francesca Cinti
- UOS Centro Malattie Endocrine e Metaboliche, UOC Endocrinologia e Diabetologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy;
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Roma, Italy
| | - Saverio Cinti
- Center of Obesity, Department of Experimental and Clinical Medicine, Marche Polytechnic University, 60126 Ancona, Italy
- Correspondence: or ; Tel.: +39-3396936172
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29
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Hatmal MM, Al-Hatamleh MAI, Olaimat AN, Alshaer W, Hasan H, Albakri KA, Alkhafaji E, Issa NN, Al-Holy MA, Abderrahman SM, Abdallah AM, Mohamud R. Immunomodulatory Properties of Human Breast Milk: MicroRNA Contents and Potential Epigenetic Effects. Biomedicines 2022; 10:biomedicines10061219. [PMID: 35740242 PMCID: PMC9219990 DOI: 10.3390/biomedicines10061219] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/15/2022] [Accepted: 05/17/2022] [Indexed: 02/07/2023] Open
Abstract
Infants who are exclusively breastfed in the first six months of age receive adequate nutrients, achieving optimal immune protection and growth. In addition to the known nutritional components of human breast milk (HBM), i.e., water, carbohydrates, fats and proteins, it is also a rich source of microRNAs, which impact epigenetic mechanisms. This comprehensive work presents an up-to-date overview of the immunomodulatory constituents of HBM, highlighting its content of circulating microRNAs. The epigenetic effects of HBM are discussed, especially those regulated by miRNAs. HBM contains more than 1400 microRNAs. The majority of these microRNAs originate from the lactating gland and are based on the remodeling of cells in the gland during breastfeeding. These miRNAs can affect epigenetic patterns by several mechanisms, including DNA methylation, histone modifications and RNA regulation, which could ultimately result in alterations in gene expressions. Therefore, the unique microRNA profile of HBM, including exosomal microRNAs, is implicated in the regulation of the genes responsible for a variety of immunological and physiological functions, such as FTO, INS, IGF1, NRF2, GLUT1 and FOXP3 genes. Hence, studying the HBM miRNA composition is important for improving the nutritional approaches for pregnancy and infant's early life and preventing diseases that could occur in the future. Interestingly, the composition of miRNAs in HBM is affected by multiple factors, including diet, environmental and genetic factors.
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Affiliation(s)
- Ma’mon M. Hatmal
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
- Correspondence: (M.M.H.); (R.M.)
| | - Mohammad A. I. Al-Hatamleh
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Malaysia;
| | - Amin N. Olaimat
- Department of Clinical Nutrition and Dietetics, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan; (A.N.O.); (M.A.A.-H.)
| | - Walhan Alshaer
- Cell Therapy Center (CTC), The University of Jordan, Amman 11942, Jordan;
| | - Hanan Hasan
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, The University of Jordan, Amman 11942, Jordan;
| | - Khaled A. Albakri
- Faculty of Medicine, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Enas Alkhafaji
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan;
| | - Nada N. Issa
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Murad A. Al-Holy
- Department of Clinical Nutrition and Dietetics, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan; (A.N.O.); (M.A.A.-H.)
| | - Salim M. Abderrahman
- Department of Biology and Biotechnology, Faculty of Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Atiyeh M. Abdallah
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar;
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Malaysia;
- Correspondence: (M.M.H.); (R.M.)
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30
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Deutsch RJ, D’Agostino VW, Sunassee ED, Kwan M, Madonna MC, Palmer G, Crouch BT, Ramanujam N. A Spectroscopic Technique to Simultaneously Characterize Fatty Acid Uptake, Mitochondrial Activity, Vascularity, and Oxygen Saturation for Longitudinal Studies In Vivo. Metabolites 2022; 12:metabo12050369. [PMID: 35629873 PMCID: PMC9143017 DOI: 10.3390/metabo12050369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 11/16/2022] Open
Abstract
Aggressive breast cancer has been shown to shift its metabolism towards increased lipid catabolism as the primary carbon source for oxidative phosphorylation. In this study, we present a technique to longitudinally monitor lipid metabolism and oxidative phosphorylation in pre-clinical tumor models to investigate the metabolic changes with mammary tissue development and characterize metabolic differences between primary murine breast cancer and normal mammary tissue. We used optical spectroscopy to measure the signal of two simultaneously injected exogenous fluorescent metabolic reporters: TMRE (oxidative phosphorylation surrogate) and Bodipy FL C16 (lipid catabolism surrogate). We leverage an inverse Monte Carlo algorithm to correct for aberrations resulting from tissue optical properties and to extract vascular endpoints relevant to oxidative metabolism, specifically oxygen saturation (SO2) and hemoglobin concentration ([Hb]). We extensively validated our optical method to demonstrate that our two fluorescent metabolic endpoints can be measured without chemical or optical crosstalk and that dual measurements of both fluorophores in vivo faithfully recapitulate the measurements of each fluorophore independently. We then applied our method to track the metabolism of growing 4T1 and 67NR breast tumors and aging mammary tissue, all highly metabolic tissue types. Our results show the changes in metabolism as a function of mammary age and tumor growth, and these changes can be best distinguished through the combination of endpoints measured with our system. Clustering analysis incorporating both Bodipy FL C16 and TMRE endpoints combined with either SO2 or [Hb] proved to be the most effective in minimizing intra-group variance and maximizing inter-group differences. Our platform can be extended to applications in which long-term metabolic flexibility is important to study, for example in tumor regression, recurrence following dormancy, and responses to cancer treatment.
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Affiliation(s)
- Riley J. Deutsch
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; (R.J.D.); (E.D.S.); (M.C.M.); (B.T.C.); (N.R.)
| | - Victoria W. D’Agostino
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; (R.J.D.); (E.D.S.); (M.C.M.); (B.T.C.); (N.R.)
- Correspondence:
| | - Enakshi D. Sunassee
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; (R.J.D.); (E.D.S.); (M.C.M.); (B.T.C.); (N.R.)
| | - Michelle Kwan
- Department of Biology, Duke University, Durham, NC 27708, USA;
| | - Megan C. Madonna
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; (R.J.D.); (E.D.S.); (M.C.M.); (B.T.C.); (N.R.)
| | - Gregory Palmer
- Department of Radiation Oncology, Duke University, Durham, NC 27708, USA;
| | - Brian T. Crouch
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; (R.J.D.); (E.D.S.); (M.C.M.); (B.T.C.); (N.R.)
| | - Nimmi Ramanujam
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; (R.J.D.); (E.D.S.); (M.C.M.); (B.T.C.); (N.R.)
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27708, USA
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31
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Araújo R, Fabris V, Lamb CA, Lanari C, Helguero LA, Gil AM. Metabolic Adaptations in an Endocrine-Related Breast Cancer Mouse Model Unveil Potential Markers of Tumor Response to Hormonal Therapy. Front Oncol 2022; 12:786931. [PMID: 35299741 PMCID: PMC8921989 DOI: 10.3389/fonc.2022.786931] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/02/2022] [Indexed: 11/26/2022] Open
Abstract
Breast cancer (BC) is the most common type of cancer in women and, in most cases, it is hormone-dependent (HD), thus relying on ovarian hormone activation of intracellular receptors to stimulate tumor growth. Endocrine therapy (ET) aimed at preventing hormone receptor activation is the primary treatment strategy, however, about half of the patients, develop resistance in time. This involves the development of hormone independent tumors that initially are ET-responsive (HI), which may subsequently become resistant (HIR). The mechanisms that promote the conversion of HI to HIR tumors are varied and not completely understood. The aim of this work was to characterize the metabolic adaptations accompanying this conversion through the analysis of the polar metabolomes of tumor tissue and non-compromised mammary gland from mice implanted subcutaneously with HD, HI and HIR tumors from a medroxyprogesterone acetate (MPA)-induced BC mouse model. This was carried out by nuclear magnetic resonance (NMR) spectroscopy of tissue polar extracts and data mining through multivariate and univariate statistical analysis. Initial results unveiled marked changes between global tumor profiles and non-compromised mammary gland tissues, as expected. More importantly, specific metabolic signatures were found to accompany progression from HD, through HI and to HIR tumors, impacting on amino acids, nucleotides, membrane percursors and metabolites related to oxidative stress protection mechanisms. For each transition, sets of polar metabolites are advanced as potential markers of progression, including acquisition of resistance to ET. Putative biochemical interpretation of such signatures are proposed and discussed.
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Affiliation(s)
- Rita Araújo
- Department of Chemistry and CICECO - Aveiro Institute of Materials (CICECO/UA), University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Victoria Fabris
- Instituto de Biología y Medicina Experimental (IByME), Buenos Aires, Argentina
| | - Caroline A Lamb
- Instituto de Biología y Medicina Experimental (IByME), Buenos Aires, Argentina
| | - Claudia Lanari
- Instituto de Biología y Medicina Experimental (IByME), Buenos Aires, Argentina
| | - Luisa A Helguero
- Institute of Biomedicine (iBIMED), Department of Medical Sciences, Universidade de Aveiro, Aveiro, Portugal
| | - Ana M Gil
- Department of Chemistry and CICECO - Aveiro Institute of Materials (CICECO/UA), University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
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Colleluori G, Galli C, Severi I, Perugini J, Giordano A. Early Life Stress, Brain Development, and Obesity Risk: Is Oxytocin the Missing Link? Cells 2022; 11:cells11040623. [PMID: 35203274 PMCID: PMC8870435 DOI: 10.3390/cells11040623] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/05/2022] [Accepted: 02/08/2022] [Indexed: 12/13/2022] Open
Abstract
Obesity disease results from a dysfunctional modulation of the energy balance whose master regulator is the central nervous system. The neural circuitries involved in such function complete their maturation during early postnatal periods, when the brain is highly plastic and profoundly influenced by the environment. This phenomenon is considered as an evolutionary strategy, whereby metabolic functions are adjusted to environmental cues, such as food availability and maternal care. In this timeframe, adverse stimuli may program the body metabolism to maximize energy storage abilities to cope with hostile conditions. Consistently, the prevalence of obesity is higher among individuals who experienced early life stress (ELS). Oxytocin, a hypothalamic neurohormone, regulates the energy balance and modulates social, emotional, and eating behaviors, exerting both central and peripheral actions. Oxytocin closely cooperates with leptin in regulating energy homeostasis. Both oxytocin and leptin impact the neurodevelopment during critical periods and are affected by ELS and obesity. In this review article, we report evidence from the literature describing the effect of postnatal ELS (specifically, disorganized/inconstant maternal care) on the vulnerability to obesity with a focus on the role of oxytocin. We emphasize the existing research gaps and highlight promising directions worthy of exploration. Based on the available data, alterations in the oxytocin system may in part mediate the ELS-induced susceptibility to obesity.
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Affiliation(s)
- Georgia Colleluori
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy; (G.C.); (C.G.); (I.S.); (J.P.)
| | - Chiara Galli
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy; (G.C.); (C.G.); (I.S.); (J.P.)
| | - Ilenia Severi
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy; (G.C.); (C.G.); (I.S.); (J.P.)
| | - Jessica Perugini
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy; (G.C.); (C.G.); (I.S.); (J.P.)
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020 Ancona, Italy; (G.C.); (C.G.); (I.S.); (J.P.)
- Center of Obesity, Marche Polytechnic University-United Hospitals, 60020 Ancona, Italy
- Correspondence: ; Tel.: +39-071-220-6086; Fax: +39-071-220-6087
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Abstract
The mammary gland is a heterogeneous organ comprising of immune cells, surrounding adipose stromal cells, vascular cells, mammary epithelial, and cancer stem cells. In response to nutritional stimuli, dynamic interactions amongst these cell populations can be modulated, consequently leading to an alteration of the glandular function, physiology, and ultimately disease pathogenesis. For example, obesity, a chronic over-nutritional condition, is known to disrupt homeostasis within the mammary gland and increase risk of breast cancer development. In contrast, emerging evidence has demonstrated that fasting or caloric restriction can negatively impact mammary tumorigenesis. However, how fasting induces phenotypic and functional population differences in the mammary microenvironment is not well understood. In this review, we will provide a detailed overview on the effect of nutritional conditions (i.e., overnutrition or fasting) on the mammary gland microenvironment and its impact on mammary tumor progression.
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Affiliation(s)
- Nikita Thakkar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Ye Bin Shin
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Hoon-Ki Sung
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- *Correspondence: Hoon-Ki Sung,
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Abstract
In physiological conditions, the adipose organ resides in well-defined areas, where it acts providing an energy supply and as an endocrine organ involved in the control of whole-body energy metabolism. Adipose tissue adipokines connect the body's nutritional status to the regulation of energy balance. When it surrounds organs, it provides also for mechanical protection. Adipose tissue has a complex and heterogenous cellular composition that includes adipocytes, adipose tissue-derived stromal and stem cells (ASCs) which are mesenchymal stromal cells, and endothelial and immune cells, which signal to each other and to other tissues to maintain homeostasis. In obesity and in other nutrition related diseases, as well as in age-related diseases, biological and functional changes of adipose tissue give rise to several complications. Obesity triggers alterations of ASCs, impairing adipose tissue remodeling and adipose tissue function, which induces low-grade systemic inflammation, progressive insulin resistance and other metabolic disorders. Adipose tissue grows by hyperplasia recruiting new ASCs and by hypertrophy, up to its expandability limit. To overcome this limitation and to store the excess of nutrients, adipose tissue develops ectopically, involving organs such as muscle, bone marrow and the heart. The origin of ectopic adipose organ is not clearly elucidated, and a possible explanation lies in the stimulation of the adipogenic differentiation of mesenchymal precursor cells which normally differentiate toward a lineage specific for the organ in which they reside. The chronic exposition of these newly-formed adipose depots to the pathological environment, will confer to them all the phenotypic characteristics of a dysfunctional adipose tissue, perpetuating the organ alterations. Visceral fat, but also ectopic fat, either in the liver, muscle or heart, can increase the risk of developing insulin resistance, type 2 diabetes, and cardiovascular diseases. Being able to prevent and to target dysfunctional adipose tissue will avoid the progression towards the complications of obesity and other nutrition-related diseases. The aim of this review is to summarize some of the knowledge regarding the presence of adipose tissue in particular tissues (where it is not usually present), describing the composition of its adipogenic precursors, and the interactions responsible for the development of organ pathologies.
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Affiliation(s)
- Francesca Favaretto
- grid.5608.b0000 0004 1757 3470Department of Medicine, Internal Medicine 3, University of Padua, via Giustiniani 2, 35128 Padua, Italy
| | - Silvia Bettini
- grid.5608.b0000 0004 1757 3470Department of Medicine, Internal Medicine 3, University of Padua, via Giustiniani 2, 35128 Padua, Italy
| | - Luca Busetto
- grid.5608.b0000 0004 1757 3470Department of Medicine, Internal Medicine 3, University of Padua, via Giustiniani 2, 35128 Padua, Italy
| | - Gabriella Milan
- grid.5608.b0000 0004 1757 3470Department of Medicine, Internal Medicine 3, University of Padua, via Giustiniani 2, 35128 Padua, Italy
| | - Roberto Vettor
- grid.5608.b0000 0004 1757 3470Department of Medicine, Internal Medicine 3, University of Padua, via Giustiniani 2, 35128 Padua, Italy
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Brock CK, Hebert KL, Artiles M, Wright MK, Cheng T, Windsor GO, Nguyen K, Alzoubi MS, Collins-Burow BM, Martin EC, Lau FH, Bunnell BA, Burow ME. A Role for Adipocytes and Adipose Stem Cells in the Breast Tumor Microenvironment and Regenerative Medicine. Front Physiol 2021; 12:751239. [PMID: 34912237 PMCID: PMC8667576 DOI: 10.3389/fphys.2021.751239] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 11/01/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity rates are climbing, representing a confounding and contributing factor to many disease states, including cancer. With respect to breast cancer, obesity plays a prominent role in the etiology of this disease, with certain subtypes such as triple-negative breast cancer having a strong correlation between obesity and poor outcomes. Therefore, it is critical to examine the obesity-related alterations to the normal stroma and the tumor microenvironment (TME). Adipocytes and adipose stem cells (ASCs) are major components of breast tissue stroma that have essential functions in both physiological and pathological states, including energy storage and metabolic homeostasis, physical support of breast epithelial cells, and directing inflammatory and wound healing responses through secreted factors. However, these processes can become dysregulated in both metabolic disorders, such as obesity and also in the context of breast cancer. Given the well-established obesity-neoplasia axis, it is critical to understand how interactions between different cell types in the tumor microenvironment, including adipocytes and ASCs, govern carcinogenesis, tumorigenesis, and ultimately metastasis. ASCs and adipocytes have multifactorial roles in cancer progression; however, due to the plastic nature of these cells, they also have a role in regenerative medicine, making them promising tools for tissue engineering. At the physiological level, the interactions between obesity and breast cancer have been examined; here, we will delineate the mechanisms that regulate ASCs and adipocytes in these different contexts through interactions between cancer cells, immune cells, and other cell types present in the tumor microenvironment. We will define the current state of understanding of how adipocytes and ASCs contribute to tumor progression through their role in the tumor microenvironment and how this is altered in the context of obesity. We will also introduce recent developments in utilizing adipocytes and ASCs in novel approaches to breast reconstruction and regenerative medicine.
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Affiliation(s)
- Courtney K Brock
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Katherine L Hebert
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Maria Artiles
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Maryl K Wright
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Thomas Cheng
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Gabrielle O Windsor
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Khoa Nguyen
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Madlin S Alzoubi
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Bridgette M Collins-Burow
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Elizabeth C Martin
- Department of Biological and Agricultural Engineering, Louisiana State University, Baton Rouge, LA, United States
| | - Frank H Lau
- Section of Plastic & Reconstructive Surgery, Department of Surgery, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Bruce A Bunnell
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Matthew E Burow
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
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Röszer T. Co-Evolution of Breast Milk Lipid Signaling and Thermogenic Adipose Tissue. Biomolecules 2021; 11:biom11111705. [PMID: 34827703 PMCID: PMC8615456 DOI: 10.3390/biom11111705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 12/16/2022] Open
Abstract
Breastfeeding is a unique and defining behavior of mammals and has a fundamental role in nourishing offspring by supplying a lipid-rich product that is utilized to generate heat and metabolic fuel. Heat generation from lipids is a feature of newborn mammals and is mediated by the uncoupling of mitochondrial respiration in specific fat depots. Breastfeeding and thermogenic adipose tissue have a shared evolutionary history: both have evolved in the course of homeothermy evolution; breastfeeding mammals are termed “thermolipials”, meaning “animals with warm fat”. Beyond its heat-producing capacity, thermogenic adipose tissue is also necessary for proper lipid metabolism and determines adiposity in offspring. Recent advances have demonstrated that lipid metabolism in infants is orchestrated by breast milk lipid signals, which establish mother-to-child signaling and control metabolic development in the infant. Breastfeeding rates are declining worldwide, and are paralleled by an alarming increase in childhood obesity, which at least in part may have its roots in the impaired metabolic control by breast milk lipid signals.
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Affiliation(s)
- Tamás Röszer
- Institute of Neurobiology, Faculty of Science, Ulm University, 89081 Ulm, Germany
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Kalezic A, Udicki M, Srdic Galic B, Aleksic M, Korac A, Jankovic A, Korac B. Tissue-Specific Warburg Effect in Breast Cancer and Cancer-Associated Adipose Tissue-Relationship between AMPK and Glycolysis. Cancers (Basel) 2021; 13:cancers13112731. [PMID: 34073074 PMCID: PMC8198826 DOI: 10.3390/cancers13112731] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Specific metabolic phenotypes of breast cancer result from local interactions such as cancer-adipocyte cross-talk and systemic metabolic influences such as obesity. Here we examined key regulatory enzymes involved in glucose metabolism in breast cancer tissue and cancer-associated adipose tissue of normal-weight and overweight/obese premenopausal women in comparison to benign breast tumor tissue and adipose tissue of weight-matched women. We show a simultaneous increase in 5′-AMP-activated protein kinase (AMPK) protein expression with glucose utilization favoring glycolysis and pentose phosphate pathway in breast cancer tissue. In parallel, we show an increased AMPK protein expression with glucose utilization favoring the pentose phosphate pathway in cancer-associated adipose tissue. Moreover, specific features of cancer tissue glycolysis and glycogen metabolism differ between normal-weight and overweight/obese women. The results suggest context-dependent induction of tissue-specific Warburg effect in breast cancer and cancer-associated adipose tissue. Abstract Typical features of the breast malignant phenotype rely on metabolic reprogramming of cancer cells and their interaction with surrounding adipocytes. Obesity is strongly associated with breast cancer mortality, yet the effects of obesity on metabolic reprogramming of cancer and cancer-associated adipose tissue remain largely unknown. Paired biopsies of breast tumor tissue and adipose tissue from premenopausal women were divided according to pathohistological analyses and body mass index on normal-weight and overweight/obese with benign or malignant tumors. We investigated the protein expression of key regulatory enzymes of glycolysis, pentose phosphate pathway (PPP), and glycogen synthesis. Breast cancer tissue showed a simultaneous increase in 5′-AMP-activated protein kinase (AMPK) protein expression with typical features of the Warburg effect, including hexokinase 2 (HK 2) overexpression and its association with mitochondrial voltage-dependent anion-selective channel protein 1, associated with an overexpression of rate-limiting enzymes of glycolysis (phosphofructokinase 1—PFK-1) and pentose phosphate pathway (glucose-6-phosphate dehydrogenase—G6PDH). In parallel, cancer-associated adipose tissue showed increased AMPK protein expression with overexpression of HK 2 and G6PDH in line with increased PPP activity. Moreover, important obesity-associated differences in glucose metabolism were observed in breast cancer tissue showing prominent glycogen deposition and higher glycogen synthase kinase-3 protein expression in normal-weight women and higher PFK-1 and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) protein expression in overweight/obese women. In conclusion, metabolic reprogramming of glycolysis contributes to tissue-specific Warburg effect in breast cancer and cancer-associated adipose tissue.
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Affiliation(s)
- Andjelika Kalezic
- Department of Physiology, Institute for Biological Research “Sinisa Stankovic”—National Institute of Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.K.); (A.J.)
| | - Mirjana Udicki
- Department of Anatomy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.U.); (B.S.G.)
| | - Biljana Srdic Galic
- Department of Anatomy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.U.); (B.S.G.)
| | - Marija Aleksic
- Center for Electron Microscopy, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.A.); (A.K.)
| | - Aleksandra Korac
- Center for Electron Microscopy, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.A.); (A.K.)
| | - Aleksandra Jankovic
- Department of Physiology, Institute for Biological Research “Sinisa Stankovic”—National Institute of Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.K.); (A.J.)
| | - Bato Korac
- Department of Physiology, Institute for Biological Research “Sinisa Stankovic”—National Institute of Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.K.); (A.J.)
- Center for Electron Microscopy, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (M.A.); (A.K.)
- Correspondence: ; Tel.: +3-811-1207-8307
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