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Wang W, Yang N, Wang L, Zhu Y, Chu X, Xu W, Li Y, Xu Y, Gao L, Zhang B, Zhang G, Sun Q, Wang W, Wang Q, Zhang W, Chen D. The TET-Sall4-BMP regulatory axis controls craniofacial cartilage development. Cell Rep 2024; 43:113873. [PMID: 38427557 DOI: 10.1016/j.celrep.2024.113873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/25/2023] [Accepted: 02/12/2024] [Indexed: 03/03/2024] Open
Abstract
Craniofacial microsomia (CFM) is a congenital defect that usually results from aberrant development of embryonic pharyngeal arches. However, the molecular basis of CFM pathogenesis is largely unknown. Here, we employ the zebrafish model to investigate mechanisms of CFM pathogenesis. In early embryos, tet2 and tet3 are essential for pharyngeal cartilage development. Single-cell RNA sequencing reveals that loss of Tet2/3 impairs chondrocyte differentiation due to insufficient BMP signaling. Moreover, biochemical and genetic evidence reveals that the sequence-specific 5mC/5hmC-binding protein, Sall4, binds the promoter of bmp4 to activate bmp4 expression and control pharyngeal cartilage development. Mechanistically, Sall4 directs co-phase separation of Tet2/3 with Sall4 to form condensates that mediate 5mC oxidation on the bmp4 promoter, thereby promoting bmp4 expression and enabling sufficient BMP signaling. These findings suggest the TET-BMP-Sall4 regulatory axis is critical for pharyngeal cartilage development. Collectively, our study provides insights into understanding craniofacial development and CFM pathogenesis.
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Affiliation(s)
- Weigang Wang
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Na Yang
- Institute of Biomedical Research, Yunnan University, Kunming, China; Department of Ultrasound, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Liangliang Wang
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Yuanxiang Zhu
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Xiao Chu
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Weijie Xu
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Yawei Li
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Yihai Xu
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Lina Gao
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Beibei Zhang
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Guoqiang Zhang
- Institute of Biomedical Research, Yunnan University, Kunming, China
| | - Qinmiao Sun
- Institute of Stem Cells and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Weihong Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China.
| | - Qiang Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, China.
| | - Wenxin Zhang
- Institute of Biomedical Research, Yunnan University, Kunming, China.
| | - Dahua Chen
- Institute of Biomedical Research, Yunnan University, Kunming, China; Southwest United Graduate School, Kunming, China.
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Wang Z, Khondowe P, Brannick E, Abasht B. Spatial transcriptomics reveals alterations in perivascular macrophage lipid metabolism in the onset of Wooden Breast myopathy in broiler chickens. Sci Rep 2024; 14:3450. [PMID: 38342952 PMCID: PMC10859375 DOI: 10.1038/s41598-024-53904-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 02/06/2024] [Indexed: 02/13/2024] Open
Abstract
This study aims to use spatial transcriptomics to characterize the cell-type-specific expression profile associated with the microscopic features observed in Wooden Breast myopathy. 1 cm3 muscle sample was dissected from the cranial part of the right pectoralis major muscle from three randomly sampled broiler chickens at 23 days post-hatch and processed with Visium Spatial Gene Expression kits (10X Genomics), followed by high-resolution imaging and sequencing on the Illumina Nextseq 2000 system. WB classification was based on histopathologic features identified. Sequence reads were aligned to the chicken reference genome (Galgal6) and mapped to histological images. Unsupervised K-means clustering and Seurat integrative analysis differentiated histologic features and their specific gene expression pattern, including lipid laden macrophages (LLM), unaffected myofibers, myositis and vasculature. In particular, LLM exhibited reprogramming of lipid metabolism with up-regulated lipid transporters and genes in peroxisome proliferator-activated receptors pathway, possibly through P. Moreover, overexpression of fatty acid binding protein 5 could enhance fatty acid uptake in adjacent veins. In myositis regions, increased expression of cathepsins may play a role in muscle homeostasis and repair by mediating lysosomal activity and apoptosis. A better knowledge of different cell-type interactions at early stages of WB is essential in developing a comprehensive understanding.
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Affiliation(s)
- Ziqing Wang
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
| | - Paul Khondowe
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
| | - Erin Brannick
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
| | - Behnam Abasht
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA.
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