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Articles 1 - 4 of 4
Full-Text Articles in Entire DC Network
Pathobiological Implications Of Mucin (Muc) Expression In The Outcome Of Small Bowel Cancer., Hiroaki Shibahara, Michiyo Higashi, Chihaya Koriyama, Seiya Yokoyama, Iwao Kitazono, Yasuhiro Kurumiya, Michihiko Narita, Shingo Kuze, Takanori Kyokane, Saburo Mita, Toshiyuki Arai, Takehito Kato, Norihiro Yuasa, Ryuzo Yamaguchi, Hitoshi Kubota, Hideaki Suzuki, Satoshi Baba, Karine Rousseau, Surinder K. Batra, Suguru Yonezawa
Pathobiological Implications Of Mucin (Muc) Expression In The Outcome Of Small Bowel Cancer., Hiroaki Shibahara, Michiyo Higashi, Chihaya Koriyama, Seiya Yokoyama, Iwao Kitazono, Yasuhiro Kurumiya, Michihiko Narita, Shingo Kuze, Takanori Kyokane, Saburo Mita, Toshiyuki Arai, Takehito Kato, Norihiro Yuasa, Ryuzo Yamaguchi, Hitoshi Kubota, Hideaki Suzuki, Satoshi Baba, Karine Rousseau, Surinder K. Batra, Suguru Yonezawa
Journal Articles: Biochemistry & Molecular Biology
Mucins have been associated with survival in various cancer patients, but there have been no studies of mucins in small bowel carcinoma (SBC). In this study, we investigated the relationships between mucin expression and clinicopathologic factors in 60 SBC cases, in which expression profiles of MUC1, MUC2, MUC3, MUC4, MUC5AC, MUC6 and MUC16 in cancer and normal tissues were examined by immunohistochemistry. MUC1, MUC5AC and MUC16 expression was increased in SBC lesions compared to the normal epithelium, and expression of these mucins was related to clinicopathologic factors, as follows: MUC1 [tumor location (p = 0.019), depth (p = 0.017) and …
Diagnosis Of Pancreatic Neoplasms Using A Novel Method Of Dna Methylation Analysis Of Mucin Expression In Pancreatic Juice., Seiya Yokoyama, Sho Kitamoto, Michiyo Higashi, Yuko Goto, Taro Hara, Dai Ikebe, Taketo Yamaguchi, Yoshifumi Arisaka, Toru Niihara, Hiroto Nishimata, Sadao Tanaka, Kyoichi Takaori, Surinder K. Batra, Suguru Yonezawa
Diagnosis Of Pancreatic Neoplasms Using A Novel Method Of Dna Methylation Analysis Of Mucin Expression In Pancreatic Juice., Seiya Yokoyama, Sho Kitamoto, Michiyo Higashi, Yuko Goto, Taro Hara, Dai Ikebe, Taketo Yamaguchi, Yoshifumi Arisaka, Toru Niihara, Hiroto Nishimata, Sadao Tanaka, Kyoichi Takaori, Surinder K. Batra, Suguru Yonezawa
Journal Articles: Biochemistry & Molecular Biology
Mucins (MUC) play crucial roles in carcinogenesis and tumor invasion in pancreatic ductal adenocarcinoma (PDAC) and intraductal papillary mucinous neoplasms (IPMNs). Our immunohistochemistry (IHC) studies have shown a consensus position on mucin expression profiles in pancreatic neoplasms as follows: MUC1-positive but MUC2-negative expression in PDACs; MUC1-negative but MUC2-positive expression in intestinal-type IPMNs (dangerous type); MUC1-negative and MUC2-negative expression in gastric-type IPMNs (safe type); High MUC4 expression in PDAC patients with a poor outcome; and MUC4-positive expression in intestinal-type IPMNs. We also showed that three mucin genes (MUC1, MUC2 and MUC4) expression in cancer cell line was regulated by DNA methylation. …
Muc4 And Muc1 Expression In Adenocarcinoma Of The Stomach Correlates With Vessel Invasion And Lymph Node Metastasis: An Immunohistochemical Study Of Early Gastric Cancer., Yukihiro Tamura, Michiyo Higashi, Sho Kitamoto, Seiya Yokoyama, Masahiko Osako, Michiko Horinouchi, Takeshi Shimizu, Mineo Tabata, Surinder K. Batra, Masamichi Goto, Suguru Yonezawa
Muc4 And Muc1 Expression In Adenocarcinoma Of The Stomach Correlates With Vessel Invasion And Lymph Node Metastasis: An Immunohistochemical Study Of Early Gastric Cancer., Yukihiro Tamura, Michiyo Higashi, Sho Kitamoto, Seiya Yokoyama, Masahiko Osako, Michiko Horinouchi, Takeshi Shimizu, Mineo Tabata, Surinder K. Batra, Masamichi Goto, Suguru Yonezawa
Journal Articles: Biochemistry & Molecular Biology
We have previously reported that MUC4 expression is a poor prognostic factor in various carcinomas. Our previous study also showed that MUC1 expression in gastric cancers, including the early and advanced stages is a poor prognostic factor. In the present study, the expression profiles of MUC4 and MUC1 were examined by immunohistochemistry (IHC) using two anti-MUC4 monoclonal antibodies (MAbs), 8G7 and 1G8, and anti-MUC1 MAb DF3 in 104 gastrectomy specimens of early gastric adenocarcinoma with submucosal invasion (pT1b2), including 197 histological subtype lesions. Before the IHC study of the human specimens, we evaluated the specificity of the two MAbs by …
Expression Of Muc17 Is Regulated By Hif1Α-Mediated Hypoxic Responses And Requires A Methylation-Free Hypoxia Responsible Element In Pancreatic Cancer., Sho Kitamoto, Seiya Yokoyama, Michiyo Higashi, Norishige Yamada, Shyuichiro Matsubara, Sonshin Takao, Surinder K. Batra, Suguru Yonezawa
Expression Of Muc17 Is Regulated By Hif1Α-Mediated Hypoxic Responses And Requires A Methylation-Free Hypoxia Responsible Element In Pancreatic Cancer., Sho Kitamoto, Seiya Yokoyama, Michiyo Higashi, Norishige Yamada, Shyuichiro Matsubara, Sonshin Takao, Surinder K. Batra, Suguru Yonezawa
Journal Articles: Biochemistry & Molecular Biology
MUC17 is a type 1 membrane-bound glycoprotein that is mainly expressed in the digestive tract. Recent studies have demonstrated that the aberrant overexpression of MUC17 is correlated with the malignant potential of pancreatic ductal adenocarcinomas (PDACs); however, the exact regulatory mechanism of MUC17 expression has yet to be identified. Here, we provide the first report of the MUC17 regulatory mechanism under hypoxia, an essential feature of the tumor microenvironment and a driving force of cancer progression. Our data revealed that MUC17 was significantly induced by hypoxic stimulation through a hypoxia-inducible factor 1α (HIF1α)-dependent pathway in some pancreatic cancer cells (e.g., …