title: Expression and clinical implication of S100A12 in gastric carcinoma.
abstract: S100 protein family has been implicated in multiple stages of tumorigenesis and progression in which S100A12 is one of the subtypes. However, the role of S100A12 in gastric carcinoma (GC) has not been elucidated yet. This study was aimed to investigate the expression of S100A12 in GC tissues and evaluate the clinical significance of S100A12 in GC patients. S100A12 protein was detected in 207 GC and 52 paired non-cancerous mucosal tissues by immunohistochemistry, while messenger RNA (mRNA) was investigated by Oncomine database analysis. Moreover, survival analysis was performed and the correlation between S100A12 and ubiquitin-specific protease 10 (USP10) and p53 was determined. As for tumor cells, the expression of S100A12 protein and mRNA in GC was proved to be lower than that in non-cancerous mucosa tissues (p < 0.05). Clinicopathological analysis showed that S100A12 protein was negatively associated with tumor size (p = 0.004), depth of invasion (p = 0.022), tumor node metastasis (TNM) stage (p = 0.018), Lauren classification (p < 0.000), and cell differentiation (p < 0.000). In contrast, a positive correlation was found between S100A12 and USP10 protein (p < 0.000). However, no relationship was detected between S100A12 and p53. Moreover, the survival analysis indicated that S100A12 protein was a favorable factor of prognosis of GC (p < 0.05). Although the expression of S100A12 in the stromal cells was detected higher than that in the tumor cells, no relationship between S100A12 protein in stromal cells and the clinicopathological features described above was found (p > 0.05). Our findings suggested that low expression of S100A12 might be served as a new marker in the tumorigenesis and progression of GC.
authors.affiliation: Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China.
authors.forename: Dan
authors.initials: D
authors.lastname: Li
authors.affiliation: Department of Pathology, Renmin Hospital of Wuhan University, No 238, Jiefang Road, Wuchang District, Wuhan, 430060, Hubei, People's Republic of China. Zengz_1982@yeah.net.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zeng
authors.affiliation: Integrated Traditional Chinese and Western Medicine Ward of Oncology Department, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Techonology, Wuhan, 430014, Hubei, People's Republic of China.
authors.forename: Tao
authors.initials: T
authors.lastname: Yu
authors.affiliation: Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China.
authors.forename: Jian
authors.initials: J
authors.lastname: Qin
authors.affiliation: Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China.
authors.forename: Jin-Chun
authors.initials: JC
authors.lastname: Song
authors.affiliation: Department of Pathology, Renmin Hospital of Wuhan University, No 238, Jiefang Road, Wuchang District, Wuhan, 430060, Hubei, People's Republic of China.
authors.forename: Zi-Ying
authors.initials: ZY
authors.lastname: Zhou
authors.affiliation: Department of Pathology, Renmin Hospital of Wuhan University, No 238, Jiefang Road, Wuchang District, Wuhan, 430060, Hubei, People's Republic of China.
authors.forename: Jing-Ping
authors.initials: JP
authors.lastname: Yuan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor; D016208:Databases, Factual; D005260:Female; D005753:Gastric Mucosa / Q000378:metabolism / Q000473:pathology; D015870:Gene Expression; D006801:Humans; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D060787:Neoplasm Grading; D009367:Neoplasm Staging; D011379:Prognosis; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D000067616:S100A12 Protein / Q000235:genetics / Q000378:metabolism*; D013274:Stomach Neoplasms / Q000235:genetics / Q000378:metabolism* / Q000401:mortality / Q000473:pathology*; D016159:Tumor Suppressor Protein p53 / Q000235:genetics / Q000378:metabolism; D043222:Ubiquitin Thiolesterase / Q000235:genetics / Q000378:metabolism; D055815:Young Adult
chemical_list: D014408:Biomarkers, Tumor; D012333:RNA, Messenger; D000067616:S100A12 Protein; D016159:Tumor Suppressor Protein p53; C431363:USP10 protein, human; D043222:Ubiquitin Thiolesterase
keywords: Clinical implication; Gastric carcinoma; S100A12; USP10