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Zuo JY, Tong YJ, Yue DM. [A review on the effect of Claudin-18 on bronchopulmonary dysplasia in preterm infants]. Zhongguo Dang Dai Er Ke Za Zhi 2021; 23:542-547. [PMID: 34020748 PMCID: PMC8140329 DOI: 10.7499/j.issn.1008-8830.2101025] [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] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Bronchopulmonary dysplasia (BPD) has the main manifestations of pulmonary edema in the early stage and characteristic alveolar obstruction and microvascular dysplasia in the late stage, which may be caused by structural and functional destruction of the lung epithelial barrier. The Claudin family is the main component of tight junction and plays an important role in regulating the permeability of paracellular ions and solutes. Claudin-18 is the only known tight junction protein solely expressed in the lung. The lack of Claudin-18 can lead to barrier dysfunction and impaired alveolar development, and the knockout of Claudin-18 can cause characteristic histopathological changes of BPD. This article elaborates on the important role of Claudin-18 in the development and progression of BPD from the aspects of lung epithelial permeability, alveolar development, and progenitor cell homeostasis, so as to provide new ideas for the pathogenesis and clinical treatment of BPD.
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Affiliation(s)
- Jing-Ye Zuo
- Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Ya-Jie Tong
- Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Dong-Mei Yue
- Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China
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李 婧, 谢 芳, 徐 晓, 马 娟, 周 代, 廖 妍, 唐 静, 谢 乾, 白 岚, 南 清. [Claudin-3 expression in colorectal carcinoma and its significance]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:63-67. [PMID: 28109100 PMCID: PMC6765752 DOI: 10.3969/j.issn.1673-4254.2017.01.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the expression of claudin-3 in colorectal carcinoma and its association with the occurrence, progression and prognosis of colorectal cancer. METHODS Forty surgical specimens of colorectal carcinoma and 22 adjacent normal tissues resected between October, 2010 and January, 2013 at Nanfang Hospital were examined for claudin-3 expression using immunohistochemistry, which was analyzed in association with the clinicopathological parameters and the survival of the patients. RESULTS Claudin-3 was expressed mainly on the cell membrane, and its positivity rate was significantly higher in cancer tissues than in normal tissues (92.50% vs 59.09%, P<0.05). In 13 cases claudin-3 expression was detected in both the cancer tissues and adjacent normal tissues with average expression scores of 4.538 and 3.269, respectively (P<0.05). In the cancer tissues, the strongly positive expression rate was significantly higher in poorly differentiated tissues (85.71%) than in well (21.43%) and moderately (36.48%) differentiated tissues (P<0.05), and was higher in cases with lymph node metastasis than in those without (61.11% vs 22.72%, P<0.05). The strongly positive expression rate of claudin-3 was not correlated with the patients'age, gender, tumor location or tumor size (P>0.05). Of the 33 cancer patients followed up, 14 had a postoperative survival time no longer than 3 years and 19 had longer survival time, and their average expression scores differed significantly (4.50 vs 3.526, P<0.05). CONCLUSION Claudin-3 is over-expressed in colorectal cancer tissues, and its high expression may promote the occurrence and progression of colorectal cancer. Claudin-3 may serve as a molecular biomarker for early diagnosis and prognostic evaluation.
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Affiliation(s)
- 婧宜 李
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 芳 谢
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 晓平 徐
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 娟娟 马
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 代超 周
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 妍 廖
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 静 唐
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 乾 谢
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 岚 白
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 清振 南
- />南方医科大学南方医院消化内科//广东省胃肠疾病重点实验室,广东 广州 510515Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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