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Yang Liu Yoshifumi Baba Takatsugu Ishimoto Hiroyasu Tsutsuki Tianli Zhang Daichi Nomoto Kazuo Okadome Kensuke Yamamura Kazuto Harada Kojiro Eto Yukiharu Hiyoshi Masaaki Iwatsuki Yohei Nagai Shiro Iwagami Yuji Miyamoto Naoya Yoshida Yoshihiro Komohara Masaki Ohmuraya Xiaoming Wang Jaffer A. Ajani Tomohiro Sawa Hideo Baba 《British journal of cancer》2021,124(5):963
Background Fusobacterium nucleatum (F. nucleatum) is a gut microbe implicated in gastrointestinal tumorigenesis. Predicting the chemotherapeutic response is critical to developing personalised therapeutic strategies for oesophageal cancer patients. The present study investigated the relationship between F. nucleatum and chemotherapeutic resistance in oesophageal squamous cell carcinoma (ESCC).Methods We examined the relationship between F. nucleatum and chemotherapy response in 120 ESCC resected specimens and 30 pre-treatment biopsy specimens. In vitro studies using ESCC cell lines and co-culture assays further uncovered the mechanism underlying chemotherapeutic resistance.Results ESCC patients with F. nucleatum infection displayed lesser chemotherapeutic response. The infiltration and subsistence of F. nucleatum in the ESCC cells were observed by transmission electron microscopy and laser scanning confocal microscopy. We also observed that F. nucleatum modulates the endogenous LC3 and ATG7 expression, as well as autophagosome formation to induce chemoresistance against 5-FU, CDDP, and Docetaxel. ATG7 knockdown resulted in reversal of F. nucleatum-induced chemoresistance. In addition, immunohistochemical studies confirmed the correlation between F. nucleatum infection and ATG7 expression in 284 ESCC specimens.Conclusions F. nucleatum confers chemoresistance to ESCC cells by modulating autophagy. These findings suggest that targeting F. nucleatum, during chemotherapy, could result in variable therapeutic outcomes for ESCC patients.Subject terms: Tumour biomarkers, Oesophageal cancer 相似文献
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Human lymphatic vessels express several leukocyte adhesion molecules. The study here investigated the expression of three junctional adhesion molecules (JAM) which are a newly reported glycoprotein family of adhesion molecules on human lymphatic endothelium. In this study, JAM-1 and JAM-3 but not JAM-2 were detected in cultured human neonatal dermal lymphatic endothelial cells (LEC) at the gene and protein levels by microarray, RT-PCR, real-time PCR, and immunohistochemical analysis. The JAM-1 and JAM-3 expression was not altered in the TNF-alpha-treated LEC or in the untreated cells. In human tissue, the expression of JAM-1, and the expression of JAM-1, JAM-2, and JAM-3 were observed in collecting lymphatic vessels of uninflamed small intestine, and in initial lymphatics of inflamed tongue and uninflamed gingival tissue. It is thought that JAM-2 mRNA could be produced in mature vascular endothelium but not in cultured cells, and that human intestinal and oral lymphatic vessels usually express JAM-1, JAM-2, and JAM-3. There were initial lymphatics simultaneously expressing JAM-1, JAM-2, and JAM-3 in the mucosal connective tissue papillae of gingival tissue. The three JAM expressions on the lymphatic endothelium may contribute to both seal the cell-cell contact at interendothelial junctions and also allow lymphocytes to transmigrate into lymphatic vessels from tissue, independent of inflammatory cytokines. 相似文献
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Kanako Terakawa Naoki Sawa Hiroki Mizuno Akinari Sekine Noriko Hayami Daisuke Ikuma Masahiro Kawada Rikako Hiramatsu Keiichi Sumida Masayuki Yamanouchi Eiko Hasegawa Tatsuya Suwabe Junichi Hoshino Keiichi Kinowaki Kenichi Ohashi Takeshi Fujii Yoshifumi Ubara 《Internal medicine (Tokyo, Japan)》2021,60(8):1237
A 74-year-old Japanese woman diagnosed with autosomal dominant polycystic kidney disease (ADPKD) was admitted to our institute for the further examination of right-side groin pain developing in the past week. The patient was diagnosed with polymyositis (PM). Diagnostic imaging showed a mass lesion measuring 8 cm and a renal stone in the right kidney. Immediately following surgical resection of the right kidney, the patient''s serum CK decreased to the normal range. A histopathological analysis showed well-differentiated squamous cell carcinoma. In conclusion, this case showed a close relationship between the occurrence of squamous cell carcinoma and the development of PM in an ADPKD patient. 相似文献
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Yasuharu Matsunaga-Lee MD Yasuyuki Egami MD Kohei Ukita MD Akito Kawamura MD Hitoshi Nakamura MD Yutaka Matsuhiro MD Koji Yasumoto MD Masaki Tsuda MD Akihiro Tanaka MD Naotaka Okamoto MD Masamichi Yano MD PhD Ryu Shutta MD Yasushi Sakata MD PhD FACC FESC Masami Nishino MD PhD FACC FESC Jun Tanouchi MD PhD 《Journal of cardiovascular electrophysiology》2021,32(1):58-66
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Akira Sawa Akihiko Shimizu Takeshi Ueyama Yasuhiro Yoshiga Shinsuke Suzuki Naoki Sugi Makoto Oono Toshihide Oomiya Masunori Matsuzaki 《Circulation journal》2008,72(3):384-391
BACKGROUND: To investigate the activation patterns and conduction velocity (CV) in the posterolateral right atrial (RA) wall during typical counterclockwise atrial flutter (AFL) using an electroanatomic mapping system. METHODS AND RESULTS: During typical AFL in 25 patients, the transverse conduction pattern and CV were classified and calculated. The line blocking transverse conduction was defined by the conduction pattern and double potentials recorded during mapping. There were 3 types (including 2 subtypes) of transverse conduction pattern based on the conduction blocks across the posterolateral RA in a line between the superior and inferior venae cava. Trans-cristal conduction activation in a horizontal direction was seen in all but 4 patients. The CV in the gap area was 0.59+/-0.21 m/s. CONCLUSIONS: Three types of transverse conduction pattern were observed during trans-ctristal conduction and the trans-ctristal CV was relatively slower than that in other parts of the RA, except for the isthmus. 相似文献
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