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Fu K, Cheung AHK, Wong CC, Liu W, Zhou Y, Wang F, Huang P, Yuan K, Coker OO, Pan Y, Chen D, Lam NM, Gao M, Zhang X, Huang H, To KF, Sung JJY, Yu J. Streptococcus anginosus promotes gastric inflammation, atrophy, and tumorigenesis in mice. Cell 2024; 187:882-896.e17. [PMID: 38295787 DOI: 10.1016/j.cell.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/13/2023] [Accepted: 01/02/2024] [Indexed: 02/18/2024]
Abstract
Streptococcus anginosus (S. anginosus) was enriched in the gastric mucosa of patients with gastric cancer (GC). Here, we show that S. anginosus colonized the mouse stomach and induced acute gastritis. S. anginosus infection spontaneously induced progressive chronic gastritis, parietal cell atrophy, mucinous metaplasia, and dysplasia in conventional mice, and the findings were confirmed in germ-free mice. In addition, S. anginosus accelerated GC progression in carcinogen-induced gastric tumorigenesis and YTN16 GC cell allografts. Consistently, S. anginosus disrupted gastric barrier function, promoted cell proliferation, and inhibited apoptosis. Mechanistically, we identified an S. anginosus surface protein, TMPC, that interacts with Annexin A2 (ANXA2) receptor on gastric epithelial cells. Interaction of TMPC with ANXA2 mediated attachment and colonization of S. anginosus and induced mitogen-activated protein kinase (MAPK) activation. ANXA2 knockout abrogated the induction of MAPK by S. anginosus. Thus, this study reveals S. anginosus as a pathogen that promotes gastric tumorigenesis via direct interactions with gastric epithelial cells in the TMPC-ANXA2-MAPK axis.
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Affiliation(s)
- Kaili Fu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alvin Ho Kwan Cheung
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi Chun Wong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Weixin Liu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yunfei Zhou
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Feixue Wang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Pingmei Huang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kai Yuan
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Olabisi Oluwabukola Coker
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yasi Pan
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Danyu Chen
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Nga Man Lam
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mengxue Gao
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Xiang Zhang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - He Huang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Ka Fai To
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Joseph Jao Yiu Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Lai KKH, Li EYM, Chan RYC, Wong KCW, Yu JKS, Cheuk W, Hui YH, Cheng ACO, Chin JKY, Ip SK, Chan WH, Kwok JSW, Lam WC, Io IYF, Mak TST, Li KKW, Lam NM, Yip WWK, Young AL, Chan E, Ko CKL, Ko STC, Yuen HKL, Tham CCY, Pang CP, Chong KKL. Malignancies in Immunoglobulin G4-related ophthalmic disease. Eur J Ophthalmol 2023; 33:171-181. [PMID: 35675196 DOI: 10.1177/11206721221102274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE Clinical phenotypes in Immunoglobulin G4-related disease (IgG4-RD) according to the patterns of affecting organs have different risks of malignancies. We attempt to determine the association of malignancies with IgG4-related ophthalmic disease (IgG4-ROD). DESIGN Retrospective cohort study. METHODS Review of medical records, orbital images and histopathology reports in a territory-wide cohort of biopsy proven IgG4-ROD patients from 2005-2019. FINDINGS Among 122 patients who had biopsies taken from adnexal lesions including lacrimal glands (n = 108), orbital mass (n = 30), infiltrated orbital fat (n = 10), conjunctiva (n = 2) or extraocular muscles (n = 3), 13% (16/122) developed malignancies over 73 ± 48months' follow-up. There were 9 cases of ocular adnexal lymphoma (OAL) and 7 extra-orbital malignancies. Compared with the general population, the incidence of OAL was significantly higher (standardized incidence ratios, SIRs = 10.0, 95%CI = 4.5-17.6) while that of extra-orbital malignancies was similar. The SIRs was highest within the first year (SIR = 46.7, 95%CI = 18.5-87.6) when 7 OAL were concomitantly diagnosed. Patients who developed OAL or extra-orbital malignancies were older than other patients at IgG4-ROD diagnosis (64.9 ± 7.1, 68.3 ± 8.5 versus 55.2 ± 15.0 years, P < 0.05). Asymmetric lacrimal gland enlargement (78% versus 13%), lack of frontal (0% versus 12%) or infraorbital nerve enlargement (0% versus 36%) were associated with OAL (all P < 0.05). Pre-treatment serum IgG4 level or extra-orbital IgG4-RD involvement was similar among patients with or without malignancies. CONCLUSION In this biopsy-proven IgG4-ROD cohort, 7% developed OAL which was 10 times higher than the general population. Patients with asymmetric lacrimal gland enlargement or without trigeminal nerves involvement radiologically were associated with OAL.
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Affiliation(s)
- Kenneth K H Lai
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | | | - Regine Y C Chan
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - Kenneth C W Wong
- Department of Clinical Oncology, 13621Prince of Wales Hospital, Hong Kong
| | - Jimmy K S Yu
- Department of Clinical Oncology, 13621Prince of Wales Hospital, Hong Kong
| | - W Cheuk
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong
| | - Y H Hui
- Department of Nuclear Medicine, Queen Elizabeth Hospital, Hong Kong
| | - Andy C O Cheng
- Department of Ophthalmology, 13620Hong Kong Sanatorium & Hospital, Hong Kong
| | - Joyce K Y Chin
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - S K Ip
- Department of Ophthalmology, 36658Tuen Mun Hospital, Hong Kong
| | - W H Chan
- Department of Ophthalmology, 36658Tuen Mun Hospital, Hong Kong
| | - Jeremy S W Kwok
- Department of Ophthalmology, Grantham Hospital, Hong Kong.,Department of Ophthalmology, 25809The University of Hong Kong, Hong Kong
| | - W C Lam
- Department of Ophthalmology, Grantham Hospital, Hong Kong.,Department of Ophthalmology, 25809The University of Hong Kong, Hong Kong
| | - Ida Y F Io
- Department of Ophthalmology, 36611Caritas Medical Center, Hong Kong
| | - Theresa S T Mak
- Department of Ophthalmology, 36621United Christian Hospital, Hong Kong
| | - Kenneth K W Li
- Department of Ophthalmology, 36621United Christian Hospital, Hong Kong
| | - N M Lam
- 71113Hong Kong Eye Hospital, Hong Kong
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - Edwin Chan
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | - Callie K L Ko
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | - Simon T C Ko
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | - Hunter K L Yuen
- 71113Hong Kong Eye Hospital, Hong Kong.,Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong.,Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
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Qiu Y, Chu AJ, Tsang TF, Zheng Y, Lam NM, Li KSL, Ip M, Yang X, Ma C. Synthesis and biological evaluation of nusbiarylin derivatives as bacterial rRNA synthesis inhibitor with potent antimicrobial activity against MRSA and VRSA. Bioorg Chem 2022; 124:105863. [DOI: 10.1016/j.bioorg.2022.105863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/09/2022] [Accepted: 05/06/2022] [Indexed: 11/25/2022]
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Cheung SSL, Wong CYK, Chan JCK, Chan CKM, Lam NM, Yuen HKL, Wong VWY, Tsang CW, Tham CCY. Ophthalmology in the time of COVID-19: experience from Hong Kong Eye Hospital. Int J Ophthalmol 2020; 13:851-859. [PMID: 32566494 DOI: 10.18240/ijo.2020.06.01] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/21/2020] [Indexed: 11/23/2022] Open
Abstract
AIM To review international guidelines and to share our infection control experience during the coronavirus disease 2019 (COVID-19) pandemic at a tertiary eye centre in Hong Kong. METHODS Infection control guidelines and recommendations from international ophthalmological bodies are reviewed and discussed. The measures at our hospital were drawn up as per international and local health authorities' guidelines and implemented with the collaboration of doctors, nurses and administrative staff. RESULTS The aims of our infection control measures are to 1) minimize cross-infection within the hospital; 2) protect and support hospital staff; 3) ensure environmental control. To minimize the risk of cross-infection, outpatient attendance and elective surgery have been reduced by 40%, and general anesthesia procedures were reduced by 90%. Patients entering the hospital are screened for fever, travel history, contact and cluster history, and COVID-19 related symptoms. To protect and support hospital staff, we ensure provision of adequate personal protective equipment (PPE) and provide clear guidelines on the level of PPE needed, depending on the clinical situation. Other protective measures include provision of work uniforms, easy access to alcohol-based hand rub, opening new lunch areas, implementation of self-monitoring and self-reporting systems, and communication via online education and updates. Finally, environmental control is achieved by ensuring regular disinfection of the hospital premise, enhancing ventilation, and usage of disposable ophthalmic instruments. CONCLUSION Our multi-pronged approach to infection control is, so far, successful in minimizing infection risks, while allowing the maintenance of essential ophthalmic services.
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Affiliation(s)
- Stephanie S L Cheung
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Cherie Y K Wong
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Jason C K Chan
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Carmen K M Chan
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - N M Lam
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Hunter K L Yuen
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Victoria W Y Wong
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Chi Wai Tsang
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong SAR, China.,Hong Kong Eye Hospital, Hong Kong SAR, China
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