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Perez-Hernandez G, Ellett MD, Banda LJ, Dougherty D, Parsons CLM, Lengi AJ, Daniels KM, Corl BA. Cyclical heat stress during lactation influences the microstructure of the bovine mammary gland. J Dairy Sci 2024:S0022-0302(24)00866-X. [PMID: 38825136 DOI: 10.3168/jds.2024-24809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/19/2024] [Indexed: 06/04/2024]
Abstract
This study aimed to evaluate the impact of heat stress on mammary epithelial cell (MEC) losses into milk, secretory mammary tissue structure, and mammary epithelial cell activity. Sixteen multiparous Holstein cows (632 ± 12 kg BW) approximately 100 d in milk housed in climate-controlled rooms were paired by body weight and randomly allocated to one of 2 treatments, heat stress (HS) or pair feeding thermoneutral (PFTN) using 2 cohorts. Each cohort was subjected to 2 periods of 4 d each. In period 1, both treatments had ad libitum access to a common total mixed ration and were exposed to a controlled daily temperature-humidity index (THI) of 64. In period 2, HS cows were exposed to controlled cyclical heat stress (THI: 74 to 80), while PFTN cows remained at 64 THI and daily dry matter intake was matched to HS. Cows were milked twice daily, and milk yield was recorded at each milking. Individual milk samples on the last day of each period were used to quantify MEC losses by flow cytometry using butyrophilin as a cell surface marker. On the final day of period 2, individual bovine mammary tissue samples were obtained for histomorphology analysis, assessment of protein abundance, and evaluation of gene expression of targets associated with cellular capacity for milk and milk component synthesis, heat response, cellular proliferation, and autophagy. Statistical analysis was performed using the GLIMMIX procedure of SAS. Milk yield was reduced by 4.3 kg by HS (n = 7) compared with PFTN (n = 8). Independent of treatment, MEC in milk averaged 174 cells/mL (2.9% of total cells). There was no difference between HS vs. PFTN cows for MEC shed or concentration in milk. Alveolar area was reduced 25% by HS, and HS had 4.1 more alveoli than PFTN. Total number of nucleated MEC per area were greater in HS (389 ± 1.05) compared with PFTN (321 ± 1.05); however, cell number per alveolus was similar between groups (25 ± 1.5 vs. 26 ± 1.4). There were no differences in relative fold expression for GLUT1, GLUT8, CSN2, CSN3, LALBA, FASN, HSPA5, and HSPA8 in HS compared with PFTN. Immunoblotting analyses showed a decrease abundance for phosphorylated STAT5 and S6K1, and an increase in LC3 II in HS compared with PFTN. These results suggest that even if milk yield differences and histological changes occur in the bovine mammary gland after 4 d of heat exposure, MEC loss into milk, nucleated MEC number per alveolus, and gene expression of nutrient transport, milk component synthesis, and heat stress related targets are unaffected. In contrast, the abundance of proteins related to protein synthesis and cell survival decreased significantly, while an upregulation of proteins associated with autophagy in HS compared with PFTN.
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Affiliation(s)
| | - M D Ellett
- School of Animal Sciences, Virginia Tech, Blacksburg, VA 24061
| | - L J Banda
- Animal Science Department, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - D Dougherty
- School of Animal Sciences, Virginia Tech, Blacksburg, VA 24061
| | - C L M Parsons
- School of Animal Sciences, Virginia Tech, Blacksburg, VA 24061
| | - A J Lengi
- School of Animal Sciences, Virginia Tech, Blacksburg, VA 24061
| | - K M Daniels
- School of Animal Sciences, Virginia Tech, Blacksburg, VA 24061
| | - B A Corl
- School of Animal Sciences, Virginia Tech, Blacksburg, VA 24061.
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2
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Stedile M, Lara Montero A, García Solá ME, Goddio MV, Beckerman I, Bogni E, Ayre M, Naguila Z, Coso OA, Kordon EC. Tristetraprolin promotes survival of mammary progenitor cells by restraining TNFα levels. Front Cell Dev Biol 2024; 11:1265475. [PMID: 38274271 PMCID: PMC10808302 DOI: 10.3389/fcell.2023.1265475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 12/22/2023] [Indexed: 01/27/2024] Open
Abstract
Tristetraprolin (TTP) is an RNA binding protein that destabilizes mRNAs of factors involved in proliferation, invasiveness, and inflammation. Disruption of the gene that codes for TTP (Zfp36) led to severe arthritis, autoimmunity, cachexia and dermatitis in mice. It has been shown that these phenotypes were mostly due to excessive TNFα levels in the affected tissues. We have previously reported that TTP expression is required for lactation maintenance. Our results indicated that conditional MG TTP-KO female mice displayed early involution due to the untimely induction of pro-inflammatory pathways led mostly by TNFα overexpression. Here we show that reducing TTP levels not only affects the fully differentiated mammary gland, but also harms morphogenesis of this tissue by impairing the progenitor cell population. We found that Zfp36 expression is linked to mammary stemness in human and mice. In addition, diminishing TTP expression and activity induced apoptosis of stem-like mouse mammary cells, reduced its ability to form mammospheres in culture and to develop into complete glands when implanted into cleared mammary fat pads in vivo. Our results show that survival of the stem-like cells is compromised by increased levels of inflammatory cytokines and stimulation of signaling cascades involving NFκB, STAT3 and MAPK-p38 activation. Moreover, TNFα overexpression and the consequent p38 phosphorylation would be the leading cause of progenitor cell death upon TTP expression restriction. Taken together, our results reveal the relevance of TTP for the maintenance of the mammary progenitor cell compartment by maintaining local TNFα levels at bay.
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Affiliation(s)
- Micaela Stedile
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Angela Lara Montero
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Martín Emilio García Solá
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - María Victoria Goddio
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Inés Beckerman
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Emilia Bogni
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Marina Ayre
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Zaira Naguila
- Facultad de Ciencias Exactas y Naturales (FCEN), Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
| | - Omar A. Coso
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
- Departamento de Fisiología, Facultad de Ciencias Exactas y Naturales (FCEN), Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
| | - Edith C. Kordon
- Instituto de Fisiología, Biología Molecular y Neurociencias, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFIBYNE-UBA-CONICET), Ciudad de Buenos Aires, Argentina
- Departamento de Química Biológica (DQB), Facultad de Ciencias Exactas y Naturales (FCEN), Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
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Balamurugan K, Poria DK, Sehareen SW, Krishnamurthy S, Tang W, McKennett L, Padmanaban V, Czarra K, Ewald AJ, Ueno NT, Ambs S, Sharan S, Sterneck E. Stabilization of E-cadherin adhesions by COX-2/GSK3β signaling is a targetable pathway in metastatic breast cancer. JCI Insight 2023; 8:156057. [PMID: 36757813 PMCID: PMC10070121 DOI: 10.1172/jci.insight.156057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/07/2023] [Indexed: 02/10/2023] Open
Abstract
Metastatic progression of epithelial cancers can be associated with epithelial-mesenchymal transition (EMT) including transcriptional inhibition of E-cadherin (CDH1) expression. Recently, EM plasticity (EMP) and E-cadherin-mediated, cluster-based metastasis and treatment resistance have become more appreciated. However, the mechanisms that maintain E-cadherin expression in this context are less understood. Through studies of inflammatory breast cancer (IBC) and a 3D tumor cell "emboli" culture paradigm, we discovered that cyclooxygenase 2 (COX-2; PTGS2), a target gene of C/EBPδ (CEBPD), or its metabolite prostaglandin E2 (PGE2) promotes protein stability of E-cadherin, β-catenin, and p120 catenin through inhibition of GSK3β. The COX-2 inhibitor celecoxib downregulated E-cadherin complex proteins and caused cell death. Coexpression of E-cadherin and COX-2 was seen in breast cancer tissues from patients with poor outcome and, along with inhibitory GSK3β phosphorylation, in patient-derived xenografts (PDX) including triple negative breast cancer (TNBC).Celecoxib alone decreased E-cadherin protein expression within xenograft tumors, though CDH1 mRNA levels increased, and reduced circulating tumor cell (CTC) clusters. In combination with paclitaxel, celecoxib attenuated or regressed lung metastases. This study has uncovered a mechanism by which metastatic breast cancer cells can maintain E-cadherin-mediated cell-to-cell adhesions and cell survival, suggesting that some patients with COX-2+/E-cadherin+ breast cancer may benefit from targeting of the PGE2 signaling pathway.
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Affiliation(s)
- Kuppusamy Balamurugan
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research (CCR), National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Dipak K Poria
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research (CCR), National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Saadiya W Sehareen
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research (CCR), National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Savitri Krishnamurthy
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Wei Tang
- Laboratory of Human Carcinogenesis, CCR, NCI, Bethesda, Maryland, USA
| | - Lois McKennett
- Laboratory Animal Sciences Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Veena Padmanaban
- Departments of Cell Biology and Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kelli Czarra
- Laboratory Animal Sciences Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Andrew J Ewald
- Departments of Cell Biology and Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Naoto T Ueno
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Stefan Ambs
- Laboratory of Human Carcinogenesis, CCR, NCI, Bethesda, Maryland, USA
| | - Shikha Sharan
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research (CCR), National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Esta Sterneck
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research (CCR), National Cancer Institute (NCI), Frederick, Maryland, USA
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Kordon E, Lanari C, Mando P, Novaro V, Rossi M, Simian M. The BA-BCS 2021: An Initial "Trial" for Integrating Basic Science and Medical Progress on Breast Cancer in a Latin-American Country. J Mammary Gland Biol Neoplasia 2021; 26:227-234. [PMID: 34642841 PMCID: PMC8510571 DOI: 10.1007/s10911-021-09501-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/01/2021] [Indexed: 10/25/2022] Open
Abstract
The first Buenos Aires Breast Cancer Symposium (BA-BCS) was held in a virtual format, between the 17th and the 21st of May 2021. The main goal of the meeting was to facilitate the interaction among physicians and basic researchers from South America and with peers from the rest of the world. To embrace their different interests and concerns, the congress included not only talks on basic, translational and clinical research, but also round tables to discuss diagnostic methods, research financing and biobank management, as well as virtual poster sessions in which the youngest fellows presented their recent findings. This report provides a brief overview of the talks delivered during the meeting, which addressed a wide variety of vital issues for breast cancer research mostly focused on the accurate diagnosis, prevention and treatment of this illness. The presentations included a wide spectrum of themes including hormone receptors and the relevance of their mutations, immunotherapy, cancer stem cells, mouse models, environmental hazards, genetics and epigenetics, local and systemic therapies, liquid biopsies, the metastatic cascade, therapy resistance and dormancy, among others.
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Affiliation(s)
- Edith Kordon
- Instituto de Fisiología, Biología Molecular Y Neurociencias (IFIBYNE-UBA-CONICET)), Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Universidad de Buenos Aires, 1428 Ciudad Autónoma de Buenos Aires (CABA), Argentina.
| | - Claudia Lanari
- Instituto de Biología Y Medicina Experimental (IBYME-CONICET), CABA, Argentina
| | | | - Virginia Novaro
- Instituto de Biología Y Medicina Experimental (IBYME-CONICET), CABA, Argentina
| | - Mario Rossi
- Instituto de Investigaciones en Medicina Traslacional (IIMT), Universidad Austral-CONICET, Provincia de Buenos Aires, Pilar, Argentina
| | - Marina Simian
- Instituto de Nanosistemas, Universidad Nacional de San Martín, Provincia de Buenos Aires, San Martín, Argentina
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van Amerongen R, Kordon EC, Koledova Z. Connecting the Dots: Mammary Gland and Breast Cancer at Single Cell Resolution. J Mammary Gland Biol Neoplasia 2021; 26:1-2. [PMID: 34125362 DOI: 10.1007/s10911-021-09492-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 05/26/2021] [Indexed: 02/08/2023] Open
Affiliation(s)
- Renée van Amerongen
- Developmental, Stem Cell and Cancer Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, the Netherlands
| | - Edith C Kordon
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Zuzana Koledova
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
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