Article
Physiology
Marika Caruso, Sjanie Huang, Larissa Mourao, Colinda L. G. J. Scheele
Summary: Branching morphogenesis is the process of forming branched structures in organs such as the lung and kidney. The exact mechanisms behind branch elongation and bifurcation are still not well understood. This study presents an improved culture method for developing complex branched mammary organoids, which offers new possibilities for studying branching in the mammary gland.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Cell Biology
Jingqiang Wang, Wenqian Song, Ruikai Yang, Chao Li, Ting Wu, Xiao Bing Dong, Bin Zhou, Xizhi Guo, Jianfeng Chen, Zhiyong Liu, Qing Cissy Yu, Wen Li, Junfen Fu, Yi Arial Zeng
Summary: This study reveals a crucial signaling axis in which fibroblasts relay Wnt signals from endothelial cells to organize epithelial patterning. It also demonstrates the importance of different niche components in coordinating epithelial organogenesis and tissue homeostasis.
Article
Cell & Tissue Engineering
Yu Zhou, Zi Ye, Wei Wei, Mengna Zhang, Fujing Huang, Jinpeng Li, Cheguo Cai
Summary: The adult stem cell niche consists of various stromal cells and signals that regulate tissue development and homeostasis. In this study, we demonstrate that mammary resident macrophages play a role in regulating mammary epithelium cell division and mammary development through the TNF-alpha-Cdk1/Cyclin B1 axis. Depletion of macrophages in vivo reduces the number of mammary basal cells and mammary stem cells (MaSCs), while increasing mammary luminal cells. In vitro, co-culturing mammary basal cells with macrophages promotes the formation of functional mammary organoids.
NPJ REGENERATIVE MEDICINE
(2023)
Article
Multidisciplinary Sciences
Sounak Sahu, Mary E. Albaugh, Betty K. Martin, Nimit L. Patel, Lisa Riffle, Susan Mackem, Joseph D. Kalen, Shyam K. Sharan
Summary: This study utilizes an in vitro culture system of mammary organoids to reconstruct the epithelial layers of the adult mammary gland by modulating the growth factor signaling pathways. A toolkit for studying organ regeneration and ductal morphogenesis is established using in vivo and ex vivo imaging techniques. The imaging modalities allow observation of ductal branching after transplantation, providing insights into mammary gland morphogenesis.
SCIENTIFIC REPORTS
(2022)
Article
Cell Biology
Jessica Elswood, Scott J. Pearson, H. Ross Payne, Rola Barhoumi, Monique Rijnkels, Weston W. Porter
Summary: Through studying the differentiation and metabolism of mammary epithelial cells, it was found that mitophagy occurs selectively during the differentiation process. Inhibiting autophagy impairs cell differentiation, while the PRKN protein is necessary for cell differentiation.
Article
Materials Science, Multidisciplinary
Kasinan Suthiwanich, Masaya Hagiwara
Summary: Localization of different hydrogel conditions in a unit-based scaffold enables spatial control of 3D tissue morphogenesis. This technique allows for the trapping of hydrogel solutions without the need for chemical additives, facilitating the spatial organization of biomolecular compositions and physical conditions within the scaffold. The localization of growth factors or matrix proteins in hydrogels demonstrates the direct dependence of tissue development on local hydrogel conditions. The scaffold-based localization technique is simple to use and has promising applications in biomedical research.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Veterinary Sciences
Laurence Finot, Eric Chanat, Frederic Dessauge
Summary: Advances in stem cell identification and culture have enabled the derivation of in vitro 3D tissue structures that mimic the in vivo functioning of organs, such as the mammary gland. This provides a useful tool for studying mammary gland development, milk secretion processes, and the effects of infections at the cellular level, with the aim of improving animal milk production.
VETERINARY RESEARCH
(2021)
Article
Cell Biology
Neil M. Neumann, Daniel M. Kim, Robert J. Huebner, Andrew J. Ewald
Summary: In this study, the process of bifurcation of mammary epithelium was investigated. The researchers observed changes in cell migration speed and the role of TGF-0 signaling in this process, revealing the mechanism behind mammary epithelial bifurcation.
JOURNAL OF CELL SCIENCE
(2023)
Article
Cell Biology
G. Kenneth Gray, Nomeda Girnius, Hendrik J. Kuiken, Aylin Z. Henstridge, Joan S. Brugge
Summary: This study uses mass cytometry and cyclic immunofluorescence to reveal the heterogeneity of murine mammary epithelial cells and uncover the connection between endocrine regulation and lineage suppression.
Article
Multidisciplinary Sciences
Sanil Patel, Njeri Z. R. Sparman, Douglas Arneson, Alexandra Alvarsson, Luis C. Santos, Samuel J. J. Duesman, Alessia Centonze, Ephraim Hathaway, In Sook Ahn, Graciel Diamante, Ingrid Cely, Chung Hwan Cho, Noble Kumar Talari, Abha K. K. Rajbhandari, Leigh Goedeke, Peng Wang, Atul J. J. Butte, Cedric Blanpain, Karthickeyan Chella Krishnan, Aldons J. J. Lusis, Sarah A. A. Stanley, Xia Yang, Prashant Rajbhandari
Summary: The mammary gland ductal epithelial cells regulate cold-induced adipocyte UCP1 expression and control adipose thermogenesis through the secretion of mammokines. These findings suggest that sympathetic nerve-activated glandular epithelium plays a crucial role in adipocyte UCP1 expression and has implications for energy expenditure and subcutaneous fat loss.
Article
Developmental Biology
Adam Packard, William H. Klein, Frank Costantini
Summary: Research has shown that Ret signaling in kidney development is crucial for maintaining tip cells in the ureteric bud. Cells genetically forced to maintain Ret expression exhibit a tip-seeking behavior and self-organize into dense clusters in organoids. This suggests that Ret-dependent cell behaviors play a significant role in normal branching morphogenesis.
Article
Developmental Biology
Jin Man Kim, YoungJu Jo, Ju Won Jung, Kyungpyo Park
Summary: The study reported a mechanogenetic role of the actomyosin complex in branching morphogenesis, revealing the importance of force distribution for promoting the branching process, and the crucial genes regulated by YAP and TAZ for the distribution of epithelial progenitor cells in epithelial organs.
Article
Multidisciplinary Sciences
Juliane Winkler, Pengyuan Liu, Kiet Phong, Johanna H. Hinrichs, Nassim Ataii, Katherine Williams, Elin Hadler-Olsen, Susan Samson, Zev J. Gartner, Susan Fisher, Zena Werb
Summary: The study showed that replacement bisphenols have protumorigenic effects on the mammary gland, leading to disruption of normal model structure and producing proteomic changes. This finding highlights the importance of evaluating the potential harmful effects of structurally related environmental chemicals.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Cell Biology
Donghyun Kim, Yeo-Jun Yoon, Dojin Choi, Jisun Kim, Jae-Yol Lim
Summary: This study demonstrated lumen formation in mouse submandibular gland organoids using a three-dimensional culture system. The formation of lumens was induced by vasoactive intestinal peptide and accelerated by retinoic acid treatment. RA signaling was identified as playing a crucial role in regulating VIPR1 and KRT7 for lumen formation.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Cell & Tissue Engineering
Sang Yun Jeong, Woo Hee Choi, Seong Gyeong Jeon, Sookon Lee, Jong-Moon Park, Mira Park, Hookeun Lee, Helen Lew, Jongman Yoo
Summary: The study demonstrates that the established LG organoids resemble the characteristics of normal LG tissue and may be used as a therapy for patients with DED.
STEM CELL RESEARCH & THERAPY
(2021)