Xin Yuan

ORCID: 0000-0002-2558-0203
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Prostate Cancer Treatment and Research
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • PI3K/AKT/mTOR signaling in cancer
  • Wnt/β-catenin signaling in development and cancer
  • Cancer-related gene regulation
  • Estrogen and related hormone effects
  • Immune Cell Function and Interaction
  • Hippo pathway signaling and YAP/TAZ
  • Immunotherapy and Immune Responses
  • Reproductive System and Pregnancy
  • Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • T-cell and B-cell Immunology
  • Ubiquitin and proteasome pathways
  • Hormonal and reproductive studies
  • Heat shock proteins research
  • Cancer, Lipids, and Metabolism
  • Protein Hydrolysis and Bioactive Peptides
  • Eicosanoids and Hypertension Pharmacology
  • HIV Research and Treatment
  • Genital Health and Disease
  • Cancer-related Molecular Pathways
  • Epigenetics and DNA Methylation
  • Reproductive Physiology in Livestock
  • Cancer-related molecular mechanisms research

Nanjing Agricultural University
2020-2025

Chinese PLA General Hospital
2025

Anhui Medical University
2025

Harvard University
2012-2024

Beth Israel Deaconess Medical Center
2012-2024

Nankai University
2009-2024

Soochow University
2010-2024

First Affiliated Hospital of Soochow University
2010-2024

National Clinical Research Center for Digestive Diseases
2024

First Affiliated Hospital Zhejiang University
2023-2024

Testosterone supplementation in men decreases fat mass; however, the mechanisms by which it inhibits mass are unknown. We hypothesized that testosterone adipogenic differentiation of preadipocytes activation androgen receptor (AR)/beta-catenin interaction and subsequent translocation this complex to nucleus thereby bypassing canonical Wnt signaling. tested hypothesis 3T3-L1 cells differentiate form medium. found these express AR dihydrotestosterone dose-dependently inhibited as analyzed Oil...

10.1210/en.2004-1649 article EN Endocrinology 2005-10-07

Fusion of the androgen receptor-regulated (AR-regulated) TMPRSS2 gene with ERG in prostate cancer (PCa) causes androgen-stimulated overexpression ERG, an ETS transcription factor, but critical downstream effectors ERG-mediating PCa development remain to be established. Expression SOX9 factor correlated TMPRSS2:ERG fusion 3 independent cohorts, and ERG-dependent expression was confirmed by RNAi fusion-positive VCaP cell line. has been shown mediate ductal morphogenesis fetal maintain...

10.1172/jci66666 article EN Journal of Clinical Investigation 2013-02-15

Abstract Metastatic castration-resistant prostate cancer is typically lethal, exhibiting intrinsic or acquired resistance to second-generation androgen-targeting therapies and minimal response immune checkpoint inhibitors 1 . Cellular programs driving in both cells remain poorly understood. We present single-cell transcriptomes from 14 patients with advanced cancer, spanning all common metastatic sites. Irrespective of treatment exposure, adenocarcinoma pervasively coexpressed multiple...

10.1038/s41591-021-01244-6 article EN cc-by Nature Medicine 2021-03-01

Accumulating evidence suggests that the matrix (MA) protein of retroviruses plays a key role in virus assembly by directing intracellular transport and membrane association Gag polyprotein. In this report, we show MA human immunodeficiency type 1 is also critical for incorporation viral Env proteins into mature virions. Several deletions introduced domain (p17) polyprotein did not greatly affect synthesis processing or formation Analysis revealed normal levels Pol these mutant virions, but...

10.1128/jvi.66.8.4966-4971.1992 article EN Journal of Virology 1992-08-01

The matrix domain of human immunodeficiency virus type 1 Gag polyprotein was studied for its role in assembly. Deletion and substitution mutations caused a dramatic reduction production. Mutant polyproteins were myristoylated had high affinity membrane association. Immunofluorescence staining revealed large accumulation mutant precursors the cytoplasm, while wild-type proteins primarily associated with cell surface membrane. These results suggest defect intracellular transport precursors....

10.1128/jvi.67.11.6387-6394.1993 article EN Journal of Virology 1993-11-01

Androgen receptors (ARs) are phosphorylated at multiple sites in response to ligand binding, but the kinases mediating AR phosphorylation and importance of these function have not been established. Here we show that cyclin-dependent kinase 1 (Cdk1) mediates Ser-81 increases protein expression, Cdk1 inhibitors decrease phosphorylation, transcriptional activity prostate cancer (PCa) cells. The decline expression mediated by Cdk inhibitor roscovitine was prevented proteosome inhibitors,...

10.1073/pnas.0604193103 article EN Proceedings of the National Academy of Sciences 2006-10-17

The transcription factor SOX9 is critical for prostate development, and dysregulation of implicated in cancer (PCa). However, the SOX9-dependent genes pathways involved both normal neoplastic epithelium are largely unknown. Here, we performed ChIP sequencing analysis transcriptome profiling PCa cells determined that positively regulates multiple WNT pathway genes, including those encoding receptors (frizzled [FZD] lipoprotein receptor-related protein [LRP] family members) downstream...

10.1172/jci78815 article EN Journal of Clinical Investigation 2016-04-03

Abstract SOX9 is a transcription factor that plays critical role in the development of multiple tissues. We previously reported normal human adult prostate was restricted to basal epithelium. also expressed subset cancer (PCa) cells and increased relapsed hormone-refractory PCa. Moreover, expression PCa cell lines enhanced tumor proliferation β-catenin regulated. Here we report additional vivo results showing highly during fetal by epithelial expanding into mesenchyme, suggesting it may...

10.1158/0008-5472.can-07-5915 article EN Cancer Research 2008-03-13

Evodiamine (EVO), an extraction from the traditional Chinese medicine Evodia rutaecarpa, has been reported to possess anti-inflammatory, anti-tumor and other pharmacological activities. However, effectiveness of EVO relieve dextran sodium sulfate (DSS)-induced ulcerative colitis (UC) not evaluated. In this study, protective effects mechanisms on DSS-induced UC mice were investigated. The results indicated that treatment with ameliorated body weight loss, disease activity index (DAI), colon...

10.1016/j.biopha.2018.12.033 article EN Biomedicine & Pharmacotherapy 2018-12-13

PIK3CA mutations occur in ∼8% of cancers, including ∼40% HR-positive breast where the PI3K-alpha (PI3Kα)-selective inhibitor alpelisib is FDA approved combination with fulvestrant. Although prior studies have identified resistance mechanisms, such as PTEN loss, clinically acquired to PI3Kα inhibitors remains poorly understood. Through serial liquid biopsies and rapid autopsies 39 patients advanced cancer developing inhibitors, we observe that 50% acquire genomic alterations within PI3K...

10.1158/2159-8290.cd-23-0704 article EN cc-by-nc-nd Cancer Discovery 2023-10-31

Noncanonical Wnt signaling by WNT5a has oncogenic and tumor suppressive activities, but downstream pathways mediating these specific effects remain to be fully established. In a subset of prostate cancer organoid culture xenograft models, inhibition synthesis stimulated growth, whereas or mimetic peptide (Foxy5) markedly suppressed growth. caused ROR2-dependent decrease in YAP1 activity, which was associated with increased phosphorylation MST1/2, LATS1, MOB1, YAP1, indicating Hippo pathway...

10.1158/0008-5472.can-22-3003 article EN Cancer Research 2023-01-06

In-frame stop codons were introduced into the coding region of human immunodeficiency virus type 1 (HIV-1) transmembrane protein (gp41). Truncation 147 amino acids from carboxyl terminus gp41 (TM709) significantly decreased stability and cell surface expression viral Env proteins, while truncation 104 (TM752) did not. 43 or more generated mutant viruses which noninfectious in several CD4+ T lymphoid lines fresh peripheral blood mononuclear cells. Analysis virions revealed reduced...

10.1128/jvi.67.1.213-221.1993 article EN Journal of Virology 1993-01-01

SOX9 is a member of the SOX [Sry-related high-mobility group (HMG) box] family HMG DNA-binding domain transcription factors and required for development differentiation multiple cell lineages. This report shows that basal epithelial cells express in normal prostate, with no detectable expression luminal cells. In contrast, expressed primary prostate cancers vivo, at higher frequency recurrent cancer lines (LNCaP, CWR22, PC3, DU145). message protein levels were increased by treatment glycogen...

10.1158/0008-5472.can-06-1672 article EN Cancer Research 2007-01-15

The vpr gene of human immunodeficiency virus type 1 (HIV-1) is one the seven accessory genes that are believed to have roles in replication cycle. We report here detection a 13 kD protein sucrose gradient-purified HIV-1. This was not detected cells infected with having truncated lacks potential encode for 26 C-terminal amino acid residues. These findings raise possibility virion-associated proteins may be involved early life cycle HIV-1 and suggest region essential its expression.

10.1089/aid.1990.6.1265 article EN AIDS Research and Human Retroviruses 1990-11-01

Loss of PTEN is a common event in many cancers and leads to hyperactivation the PI3K-AKT signaling pathway. The mechanisms by which AKT isoforms mediate phenotypes associated with inactivation cancer have not been defined. Here, we show that AKT2 exclusively required for PTEN-deficient prostate tumor spheroid maintenance, whereas AKT1 dispensable. shRNA silencing but promotes regression xenografts. Mechanistically, upregulates p21 proapoptotic protein BAX downregulates insulin-like growth...

10.1158/2159-8290.cd-13-0873 article EN Cancer Discovery 2014-05-17

Whether the human tumor virus, Epstein-Barr Virus (EBV), promotes breast cancer remains controversial and a potential mechanism has remained elusive. Here we show that EBV can infect primary mammary epithelial cells (MECs) express receptor CD21. infection leads to expansion of early MEC progenitor with stem cell phenotype, activates MET signaling enforces differentiation block. When MECs were implanted as xenografts, cooperated activated Ras accelerated formation cancer. Infection in...

10.1016/j.ebiom.2016.05.025 article EN cc-by-nc-nd EBioMedicine 2016-05-24

This study investigated interactions between SRY, the Y chromosome encoded male sex determining factor, and androgen receptor (AR). Coexpression of AR SRY caused marked repression transcriptional activity on a series androgen-responsive reporter genes. Mammalian one- two-hybrid experiments demonstrated an AR-SRY interaction mediated by DNA binding domain. Precipitations with glutathione S-transferase fusion proteins indicated that were direct domain high mobility group box Transient...

10.1074/jbc.m108404200 article EN cc-by Journal of Biological Chemistry 2001-12-01
Coming Soon ...