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Naser Ansari-Pour, Zahra Razaghi-Moghadam, Farnaz Barneh, Mohieddin Jafari
Pinpointing causal genes for spermatogenic failure (SpF) on the Y chromosome has been an ever daunting challenge with setbacks during the past decade. Since complex diseases result from the interaction of multiple genes and also display considerable missing heritability, network analysis is more likely to explicate an etiological molecular basis. We therefore took a network medicine approach by integrating interactome (protein-protein interaction (PPI)) and transcriptome data to reconstruct a Y-centric SpF network...
March 4, 2016: Journal of Proteome Research
Queenie Wing-Lei Wong, Jia Li, Sheng Rong Ng, Seng Gee Lim, Henry Yang, Leah A Vardy
Ribosomal proteins (RPs) have been shown to be able to impart selectivity on the translating ribosome implicating them in gene expression control. Many ribosomal proteins are highly conserved and recently a number of ribosomal protein paralogs have been described in mammals. We examined the expression pattern of RPs in differentiating mouse Embryonic Stem Cells (ESCs), paying particular attention to the RP paralogs. We find the RP paralog Rpl39l is highly expressed in ESC and its expression strongly correlates with hepatocellular carcinoma tumor (HCC) samples with high tumor grading and alpha-fetoprotein level giving it diagnostic potential...
2014: RNA Biology
J M Devaney, S Wang, S Funda, J Long, D J Taghipour, R Tbaishat, P Furbert-Harris, M Ittmann, B Kwabi-Addo
BACKGROUND: Prostate cancer (PCa) harbors a myriad of genomic and epigenetic defects. Cytosine methylation of CpG-rich promoter DNA is an important mechanism of epigenetic gene inactivation in PCa. There is considerable amount of data to suggest that DNA methylation-based biomarkers may be useful for the early detection and diagnosis of PCa. In addition, candidate gene-based studies have shown an association between specific gene methylation and alterations and clinicopathologic indicators of poor prognosis in PCa...
December 2013: Prostate Cancer and Prostatic Diseases
Kristian B Laursen, Pui-Mun Wong, Lorraine J Gudas
Retinoic acid receptors (RARs) α, β and γ are key regulators of embryonic development. Hematopoietic differentiation is regulated by RARα, and several types of leukemia show aberrant RARα activity. Through microarray expression analysis, we identified transcripts differentially expressed between F9 wild-type (Wt) and RARα knockout cells cultured in the absence or presence of the RAR-specific ligand all trans retinoic acid (RA). We validated the decreased Mest, Tex13, Gab1, Bcl11a, Tcfap2a and HMGcs1 transcript levels, and increased Slc38a4, Stmn2, RpL39l, Ref2L, Mobp and Rlf1 transcript levels in the RARa knockout cells...
January 2012: Nucleic Acids Research
Jan Rohozinski, Matthew L Anderson, Russell E Broaddus, Creighton L Edwards, Colin E Bishop
BACKGROUND: Ovarian cancer is the second most prevalent gynecologic cancer in women. However, it is by far the most lethal. This is generally attributed to the absence of easily detectable markers specific to ovarian cancers that can be used for early diagnosis and specific therapeutic targets. METHODOLOGY/PRINCIPAL FINDINGS: Using end point PCR we have found that a family of retrogenes, previously thought to be expressed only in the male testis during spermatogenesis in man, are also expressed in normal ovarian tissue and a large percentage of ovarian cancers...
2009: PloS One
Yick-Fu Wong, Tak-Hong Cheung, George S W Tsao, Keith W K Lo, So-Fan Yim, Vivian W Wang, Macy M S Heung, Samuel C S Chan, Loucia K Y Chan, Tina W F Ho, Katherine W Y Wong, Chen Li, Yu Guo, Tony K H Chung, David I Smith
An analysis of gene expression profiles obtained from cervical cancers was performed to find those genes most aberrantly expressed. Total RNA was prepared from 29 samples of cervical squamous cell carcinoma and 18 control samples, and hybridized to Affymetrix oligonucleotide microarrays with probe sets complementary to over 20,000 transcripts. Unsupervised hierarchical clustering of the expression data readily distinguished normal cervix from cancer. Supervised analysis of gene expression data identified 98 and 139 genes that exhibited >2-fold upregulation and >2-fold downregulation, respectively, in cervical cancer compared to normal cervix...
May 15, 2006: International Journal of Cancer. Journal International du Cancer
Tamayo Uechi, Noriko Maeda, Tatsuo Tanaka, Naoya Kenmochi
We have identified a new class of ribosomal protein (RP) genes that appear to have been retrotransposed from X-linked RP genes. Mammalian ribosomes are composed of four RNA species and 79 different proteins. Unlike RNA constituents, each protein is typically encoded by a single intron- containing gene. Here we describe functional autosomal copies of the X-linked human RP genes, which we designated RPL10L (ribosomal protein L10-like gene), RPL36AL and RPL39L after their progenitors. Because these genes lack introns in their coding regions, they were likely retrotransposed from X-linked genes...
December 15, 2002: Nucleic Acids Research
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