Correlation of low expression of hMOF with clinicopathological features of colorectal carcinoma, gastric cancer and renal cell carcinoma.
Human MOF (males absent on the first), as a histone acetyltransferase, is responsible for histone H4K16 acetylation in human cells. Recent studies have shown that the abnormal gene expression of hMOF is involved in certain primary cancers. Here, we first report the involvement of hMOF expression in clinically diagnosed primary colorectal carcinoma (CRC) and gastric cancer. Simultaneously, the correlation of hMOF expression and clinicopathological features in CRC, gastric cancer and renal cell carcinoma (RCC) was analyzed. The hMOF mRNA expression was assessed in 44 CRC, 16 gastric cancer and 47 RCC human tissue samples by quantitative PCR (qPCR). Statistical analysis of qPCR data revealed a significant reduction (>2-fold decrease) of hMOF gene expression in CRC, 57% (25/44), 94% (15/16) in gastric cancer and 74% (35/47) in RCC tissues of the patients. In patients with CRC, lymph node metastasis and tumor stage were associated with hMOF expression patterns. However, no significant association between hMOF expression and tumor types emerged (p>0.05). Interestingly, in patients with gastric cancer, although no statistically significant difference was found between adjacent (<2 cm away from the cancer tissue) and normal tissues (>5 cm away from the cancer tissue), >2-fold reduction of hMOF expression in adjacent tissues had already appeared in 35% of patients. In addition, low expression of hMOF was strongly correlated with tumor differentiation (p<0.05) and survival of patients with gastric cancer (p<0.001). While in patients with RCC, downregulation of hMOF was connected to ccRCC and tissues with T1 tumor status. Our results suggest that downregulation of hMOF may be common in cancer tissues, and may represent a novel biomarker for tumor diagnosis.
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Lingling
L
Cao
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Lin
L
Zhu
Department of Gastrointestinal Surgery, The First Clinical Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.
Jiaxing
J
Yang
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Jiaming
J
Su
Department of Pathology, The First Clinical Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.
Jinsong
J
Ni
Department of Nephrology, The First Clinical Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.
Yujun
Y
Du
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Da
D
Liu
Department of Pathology, The First Clinical Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.
Yanfang
Y
Wang
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Fei
F
Wang
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Jingji
J
Jin
School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China.
Yong
Y
Cai
D000107:Acetylation; D000368:Aged; D014408:Biomarkers, Tumor / Q000096:biosynthesis / Q000235:genetics; D002292:Carcinoma, Renal Cell / Q000235:genetics* / Q000473:pathology; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000473:pathology; D005260:Female; D015870:Gene Expression; D015972:Gene Expression Regulation, Neoplastic; D051548:Histone Acetyltransferases / Q000096:biosynthesis / Q000235:genetics*; D006657:Histones / Q000378:metabolism; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D013274:Stomach Neoplasms / Q000235:genetics* / Q000401:mortality / Q000473:pathology
D014408:Biomarkers, Tumor; D006657:Histones; D051548:Histone Acetyltransferases; C496552:KAT8 protein, human