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Alvarado K, Tang WJ, Watson CJ, Ahmed AR, Gomez AE, Donaka R, Amemiya C, Karasik D, Hsu YH, Kwon RY. Loss of cped1 does not affect bone and lean tissue in zebrafish. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.10.601974. [PMID: 39026892 PMCID: PMC11257572 DOI: 10.1101/2024.07.10.601974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Human genetic studies have nominated Cadherin-like and PC-esterase Domain-containing 1 (CPED1) as a candidate target gene mediating bone mineral density (BMD) and fracture risk heritability. Recent efforts to define the role of CPED1 in bone in mouse and human models have revealed complex alternative splicing and inconsistent results arising from gene targeting, making its function in bone difficult to interpret. To better understand the role of CPED1 in adult bone mass and morphology, we conducted a comprehensive genetic and phenotypic analysis of cped1 in zebrafish, an emerging model for bone and mineral research. We analyzed two different cped1 mutant lines and performed deep phenotyping to characterize more than 200 measures of adult vertebral, craniofacial, and lean tissue morphology. We also examined alternative splicing of zebrafish cped1 and gene expression in various cell/tissue types. Our studies fail to support an essential role of cped1 in adult zebrafish bone. Specifically, homozygous mutants for both cped1 mutant alleles, which are expected to result in loss-of-function and impact all cped1 isoforms, exhibited no significant differences in the measures examined when compared to their respective wildtype controls, suggesting that cped1 does not significantly contribute to these traits. We identified sequence differences in critical residues of the catalytic triad between the zebrafish and mouse orthologs of CPED1, suggesting that differences in key residues, as well as distinct alternative splicing, could underlie different functions of CPED1 orthologs in the two species. Our studies fail to support a requirement of cped1 in zebrafish bone and lean tissue, adding to evidence that variants at 7q31.31 can act independently of CPED1 to influence BMD and fracture risk.
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Affiliation(s)
- Kurtis Alvarado
- Department of Orthopaedic Surgery and Sports Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - W. Joyce Tang
- Department of Orthopaedic Surgery and Sports Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - Claire J. Watson
- Department of Orthopaedic Surgery and Sports Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - Ali R. Ahmed
- Department of Orthopaedic Surgery and Sports Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - Arianna Ericka Gomez
- Department of Orthopaedic Surgery and Sports Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | | | - Chris Amemiya
- Department of Molecular and Cell Biology and Quantitative and Systems Biology Program, University of California, Merced, CA, USA
| | - David Karasik
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- Hebrew SeniorLife, Hinda and Arthur Marcus Institute for Aging Research, Boston, MA, USA
| | - Yi-Hsiang Hsu
- Hebrew SeniorLife, Hinda and Arthur Marcus Institute for Aging Research, Boston, MA, USA
| | - Ronald Young Kwon
- Department of Orthopaedic Surgery and Sports Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
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Wang Y, Zhao W, Ross A, You L, Wang H, Zhou X. Revealing chronic disease progression patterns using Gaussian process for stage inference. J Am Med Inform Assoc 2024; 31:396-405. [PMID: 38055638 PMCID: PMC10797260 DOI: 10.1093/jamia/ocad230] [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: 08/11/2023] [Revised: 11/06/2023] [Accepted: 11/20/2023] [Indexed: 12/08/2023] Open
Abstract
OBJECTIVE The early stages of chronic disease typically progress slowly, so symptoms are usually only noticed until the disease is advanced. Slow progression and heterogeneous manifestations make it challenging to model the transition from normal to disease status. As patient conditions are only observed at discrete timestamps with varying intervals, an incomplete understanding of disease progression and heterogeneity affects clinical practice and drug development. MATERIALS AND METHODS We developed the Gaussian Process for Stage Inference (GPSI) approach to uncover chronic disease progression patterns and assess the dynamic contribution of clinical features. We tested the ability of the GPSI to reliably stratify synthetic and real-world data for osteoarthritis (OA) in the Osteoarthritis Initiative (OAI), bipolar disorder (BP) in the Adolescent Brain Cognitive Development Study (ABCD), and hepatocellular carcinoma (HCC) in the UTHealth and The Cancer Genome Atlas (TCGA). RESULTS First, GPSI identified two subgroups of OA based on image features, where these subgroups corresponded to different genotypes, indicating the bone-remodeling and overweight-related pathways. Second, GPSI differentiated BP into two distinct developmental patterns and defined the contribution of specific brain region atrophy from early to advanced disease stages, demonstrating the ability of the GPSI to identify diagnostic subgroups. Third, HCC progression patterns were well reproduced in the two independent UTHealth and TCGA datasets. CONCLUSION Our study demonstrated that an unsupervised approach can disentangle temporal and phenotypic heterogeneity and identify population subgroups with common patterns of disease progression. Based on the differences in these features across stages, physicians can better tailor treatment plans and medications to individual patients.
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Affiliation(s)
- Yanfei Wang
- Center for Computational Systems Medicine, McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Weiling Zhao
- Center for Computational Systems Medicine, McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Angela Ross
- Center for Computational Systems Medicine, McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Lei You
- Center for Computational Systems Medicine, McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Hongyu Wang
- McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
- Cizik School of Nursing, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Xiaobo Zhou
- Center for Computational Systems Medicine, McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States
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