Shu-Long Wang1, Ge Zhao2, Wei Zhu2, Xiao-Meng Dong3, Ting Liu2, Yuan-Yuan Li3, Wen-Gang Song4, Yi-Qiang Wang5. 1. Department of Immunology, Taishan Medical University, Tai'an 271016, Shandong Province, China ; Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Qingdao 266071, Shandong Province, China. 2. Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Qingdao 266071, Shandong Province, China. 3. Department of Immunology, Qingdao University, Qingdao 266071, Shandong Province, China. 4. Department of Immunology, Taishan Medical University, Tai'an 271016, Shandong Province, China. 5. Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Qingdao 266071, Shandong Province, China ; MOH Key Lab of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China.
Abstract
AIM: To investigate into the potential involvement of pyrin containing 3 gene (NLRP3), a member of the nucleotide-binding oligomerization domain-like receptors with cytosolic pattern recognition, in the host defense of corneas against viruses. METHODS: The herpes viral keratitis model was utilized in BALB/c mice with inoculation of herpes simplex virus-1 (HSV-1). Corneal tissues removed during therapy of patients with viral keratitis as well as a Simian vacuolating virus 40 (SV40)-immortalized human corneal epithelial cell line were also examined. Immunohistochemistry was used to detect NLRP3 in these subjects, focusing on their distribution in tissue or cells. Western blot was used to measure the level of NLRP3 and another two related molecules in NLPR3 inflammasome, namely caspase-1 and IL-1β. RESULTS: The NLRP3 activation induced by HSV-1 infection in corneas was accompanied with redistribution of NLRP3 from the cytoplasm to the nucleus in both murine and human corneal epithelial cells. Furthermore, in the SV40-immortalized human corneal epithelial cells, NLRP3 was exclusively located in the nucleus, and treatment of the cells with high concentration of extracellular potassium (known as an inhibitor of NLRP3 activation) effectively drove NLRP3 back to the cytoplasm as reflected by both immunohistochemistry and Western blot. CONCLUSION: It is proposed that herpes virus infection activates and causes redistribution of NLRP3 to nuclei. Whether this NLRP3 translocation occurs with other viral infections and in other cell types merit further study.
AIM: To investigate into the potential involvement of pyrin containing 3 gene (NLRP3), a member of the nucleotide-binding oligomerization domain-like receptors with cytosolic pattern recognition, in the host defense of corneas against viruses. METHODS: The herpes viral keratitis model was utilized in BALB/c mice with inoculation of herpes simplex virus-1 (HSV-1). Corneal tissues removed during therapy of patients with viral keratitis as well as a Simian vacuolating virus 40 (SV40)-immortalized human corneal epithelial cell line were also examined. Immunohistochemistry was used to detect NLRP3 in these subjects, focusing on their distribution in tissue or cells. Western blot was used to measure the level of NLRP3 and another two related molecules in NLPR3 inflammasome, namely caspase-1 and IL-1β. RESULTS: The NLRP3 activation induced by HSV-1 infection in corneas was accompanied with redistribution of NLRP3 from the cytoplasm to the nucleus in both murine and human corneal epithelial cells. Furthermore, in the SV40-immortalized human corneal epithelial cells, NLRP3 was exclusively located in the nucleus, and treatment of the cells with high concentration of extracellular potassium (known as an inhibitor of NLRP3 activation) effectively drove NLRP3 back to the cytoplasm as reflected by both immunohistochemistry and Western blot. CONCLUSION: It is proposed that herpes virus infection activates and causes redistribution of NLRP3 to nuclei. Whether this NLRP3 translocation occurs with other viral infections and in other cell types merit further study.
Authors: Irving C Allen; Margaret A Scull; Chris B Moore; Eda K Holl; Erin McElvania-TeKippe; Debra J Taxman; Elizabeth H Guthrie; Raymond J Pickles; Jenny P-Y Ting Journal: Immunity Date: 2009-04-09 Impact factor: 31.745
Authors: Luqiao Wang; Hangfei Fu; Gayani Nanayakkara; Yafeng Li; Ying Shao; Candice Johnson; Jiali Cheng; William Y Yang; Fan Yang; Muriel Lavallee; Yanjie Xu; Xiaoshu Cheng; Hang Xi; Jonathan Yi; Jun Yu; Eric T Choi; Hong Wang; Xiaofeng Yang Journal: J Hematol Oncol Date: 2016-11-14 Impact factor: 17.388
Authors: Pierre-Gregoire Coulon; Nisha Dhanushkodi; Swayam Prakash; Ruchi Srivastava; Soumyabrata Roy; Nuha I Alomari; Angela M Nguyen; Wasay R Warsi; Caitlin Ye; Edgar A Carlos-Cruz; Uyen T Mai; Audrey C Cruel; Keysi M Ekmekciyan; Eric Pearlman; Lbachir BenMohamed Journal: Front Immunol Date: 2019-07-16 Impact factor: 8.786
Authors: Lupeng Li; Stephen B Kovacs; Ine Jørgensen; Heather N Larson; Helen M Lazear; Edward A Miao Journal: Viruses Date: 2022-09-13 Impact factor: 5.818