Publications by authors named "Christopher Jin"

Transcriptomics is a powerful tool for unraveling the molecular effects of genetic variants and disease diagnosis. Prior studies have demonstrated that choice of genome build impacts variant interpretation and diagnostic yield for genomic analyses. To identify the extent genome build also impacts transcriptomics analyses, we studied the effect of the hg19, hg38, and CHM13 genome builds on expression quantification and outlier detection in 386 rare disease and familial control samples from both the Undiagnosed Diseases Network and Genomics Research to Elucidate the Genetics of Rare Disease Consortium.

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Physical activity, including structured exercise, is associated with favorable health-related chronic disease outcomes. Although there is evidence of various molecular pathways that affect these responses, a comprehensive molecular map of these molecular responses to exercise has not been developed. The Molecular Transducers of Physical Activity Consortium (MoTrPAC) is a multicenter study designed to isolate the effects of structured exercise training on the molecular mechanisms underlying the health benefits of exercise and physical activity.

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Multiple copies in T-cell malignancy 1 (MCT-1) is a prognostic biomarker for aggressive breast cancers. Overexpressed MCT-1 stimulates the IL-6/IL-6R/gp130/STAT3 axis, which promotes epithelial-to-mesenchymal transition and cancer stemness. Because cancer stemness largely contributes to the tumor metastasis and recurrence, we aimed to identify whether the blockade of MCT-1 and IL-6R can render these effects and to understand the underlying mechanisms that govern the process.

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Objectives: Osteoporosis is associated with greater risk of fracture, which can lead to increased morbidity and mortality. DEXA scans are often inaccessible for patients, leaving many cases of osteoporosis undetected. A portable 3D topographical scan offers an easily accessible and inexpensive potential adjunct screening tool.

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Background: Hip fractures are one of the most common injuries experienced by the general population. Despite advances in surgical techniques, postoperative mortality rates remain high. identifying relevant clinical factors associated with mortality is essential to preoperative risk stratification and tailored post-surgical interventions to improve patient outcomes.

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Article Synopsis
  • Transcriptomics is crucial for understanding the effects of genetic variants and diagnosing diseases, but the choice of genome build significantly affects these analyses.
  • In a study involving 386 rare disease and control samples, researchers found 2,800 genes showed different expression levels depending on whether they used hg19, hg38, or CHM13 genome builds.
  • The findings highlight the necessity of cross-referencing transcriptomic analyses with genome build data to improve diagnostic accuracy and robustness.
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Adipogenesis is a process in which fat-specific progenitor cells (preadipocytes) differentiate into adipocytes that carry out the key metabolic functions of the adipose tissue, including glucose uptake, energy storage, and adipokine secretion. Several cell lines are routinely used to study the molecular regulation of adipogenesis, in particular the immortalized mouse 3T3-L1 line and the primary human Simpson-Golabi-Behmel syndrome (SGBS) line. However, the cell-to-cell variability of transcriptional changes prior to and during adipogenesis in these models is not well understood.

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Adipogenesis is a process in which fat-specific progenitor cells (preadipocytes) differentiate into adipocytes that carry out the key metabolic functions of the adipose tissue, including glucose uptake, energy storage, and adipokine secretion. Several cell lines are routinely used to study the molecular regulation of adipogenesis, in particular the immortalized mouse 3T3-L1 line and the primary human Simpson-Golabi-Behmel syndrome (SGBS) line. However, the cell-to-cell variability of transcriptional changes prior to and during adipogenesis in these models is not well understood.

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Article Synopsis
  • - Myeloid-derived suppressor cells (MDSCs) are diverse cells that accumulate abnormally from myeloid cell differentiation and primarily function to suppress T cell activity, allowing tumors to evade the immune system.
  • - The goal of immunotherapy is to enhance the immune system’s ability to fight tumors, but MDSCs pose a significant challenge by decreasing the effectiveness of these treatments and increasing tumor cell resistance.
  • - This review examines the roles and mechanisms of MDSCs in the tumor microenvironment, explores immunotherapy strategies targeting MDSCs, and discusses potential advances in combining these therapies with immune checkpoint blockade for better cancer treatment outcomes.
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is long known to produce poly-γ-glutamic acids (γ-PGA) as one of the major secreted polymeric substances. In , the regulation of γ-PGA production and its physiological role are still unclear. is also capable of forming structurally complex multicellular communities, or biofilms, in which an extracellular matrix consisting of secreted proteins and polysaccharides holds individual cells together.

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