Histone H1 expression in human prostate cancer tissues and cell lines. 2012

Shinya Sato, and Satoru Takahashi, and Makoto Asamoto, and Makoto Nakanishi, and Toshiaki Wakita, and Yuji Ogura, and Yasushi Yatabe, and Tomoyuki Shirai
Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Japan. satopin@med.nagoya-cu.ac.jp

Histone H1, one of the histone superfamilies, is known to determine chromatin structure and alter gene expression. It also contributes to regulation of cell proliferation in breast cancer. We hypothesized a similar association in prostate cancer, and therefore examined relationships between histone H1 expression and Gleason pattern, Ki-67 and androgen receptor levels in a series of prostate cancer tissues and cell lines. Histone H1 positive cancer cells increased with the Gleason pattern. Gleason pattern 3 tumors were divided into two groups, one with high histone H1 positivity (H1-high cases, 60-100% positivity) and the other with low histone H1 positivity (H1-low cases, 0-20% positivity). Ki-67 or androgen receptor positivity in H1-high cases was significantly higher than in H1-low cases. PC3 cells demonstrated more frequent histone H1 and Ki-67 positivity as compared to LNCaP cells. Silencing of histone H1 by siRNA transfection significantly reduced cell proliferation in LNCaP and PC3. These findings suggest that histone H1 expression is associated with the Gleason pattern, cell proliferation and androgen receptor expression in prostate cancers.

UI MeSH Term Description Entries
D008297 Male Males
D011467 Prostate A gland in males that surrounds the neck of the URINARY BLADDER and the URETHRA. It secretes a substance that liquefies coagulated semen. It is situated in the pelvic cavity behind the lower part of the PUBIC SYMPHYSIS, above the deep layer of the triangular ligament, and rests upon the RECTUM. Prostates
D011471 Prostatic Neoplasms Tumors or cancer of the PROSTATE. Cancer of Prostate,Prostate Cancer,Cancer of the Prostate,Neoplasms, Prostate,Neoplasms, Prostatic,Prostate Neoplasms,Prostatic Cancer,Cancer, Prostate,Cancer, Prostatic,Cancers, Prostate,Cancers, Prostatic,Neoplasm, Prostate,Neoplasm, Prostatic,Prostate Cancers,Prostate Neoplasm,Prostatic Cancers,Prostatic Neoplasm
D011944 Receptors, Androgen Proteins, generally found in the CYTOPLASM, that specifically bind ANDROGENS and mediate their cellular actions. The complex of the androgen and receptor migrates to the CELL NUCLEUS where it induces transcription of specific segments of DNA. Androgen Receptors,5 alpha-Dihydrotestosterone Receptor,Androgen Receptor,Dihydrotestosterone Receptors,Receptor, Testosterone,Receptors, Androgens,Receptors, Dihydrotestosterone,Receptors, Stanolone,Stanolone Receptor,Testosterone Receptor,5 alpha Dihydrotestosterone Receptor,Androgens Receptors,Receptor, 5 alpha-Dihydrotestosterone,Receptor, Androgen,Receptor, Stanolone,Stanolone Receptors,alpha-Dihydrotestosterone Receptor, 5
D006657 Histones Small chromosomal proteins (approx 12-20 kD) possessing an open, unfolded structure and attached to the DNA in cell nuclei by ionic linkages. Classification into the various types (designated histone I, histone II, etc.) is based on the relative amounts of arginine and lysine in each. Histone,Histone H1,Histone H1(s),Histone H2a,Histone H2b,Histone H3,Histone H3.3,Histone H4,Histone H5,Histone H7
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015972 Gene Expression Regulation, Neoplastic Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in neoplastic tissue. Neoplastic Gene Expression Regulation,Regulation of Gene Expression, Neoplastic,Regulation, Gene Expression, Neoplastic
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines
D049109 Cell Proliferation All of the processes involved in increasing CELL NUMBER including CELL DIVISION. Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular
D060787 Neoplasm Grading Methods which attempt to express in replicable terms the level of CELL DIFFERENTIATION in neoplasms as increasing ANAPLASIA correlates with the aggressiveness of the neoplasm. Gleason Grading,Gleason Score,Tumor Grading,Grading, Gleason,Grading, Neoplasm,Grading, Tumor,Score, Gleason

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