Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity

ABSTRACT Respiratory syncytial virus (RSV) causes severe acute lower respiratory tract infections, especially in infants and the elderly. Developing an RSV vaccine that promotes a robust mucosal immune response is necessary to successfully prevent viral transmission and the development of severe dis...

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Main Authors: Hong Lei, Aqu Alu, Jingyun Yang, Cai He, Jie Shi, Weiqi Hong, Dandan Peng, Yu Zhang, Jian Liu, Furong Qin, Xiya Huang, Chunjun Ye, Lijiao Pei, Xuemei He, Hong Yan, Guangwen Lu, Xiangrong Song, Xiawei Wei, Yuquan Wei
Format: Article
Language:English
Published: Wiley 2025-04-01
Series:MedComm
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Online Access:https://doi.org/10.1002/mco2.70146
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author Hong Lei
Aqu Alu
Jingyun Yang
Cai He
Jie Shi
Weiqi Hong
Dandan Peng
Yu Zhang
Jian Liu
Furong Qin
Xiya Huang
Chunjun Ye
Lijiao Pei
Xuemei He
Hong Yan
Guangwen Lu
Xiangrong Song
Xiawei Wei
Yuquan Wei
author_facet Hong Lei
Aqu Alu
Jingyun Yang
Cai He
Jie Shi
Weiqi Hong
Dandan Peng
Yu Zhang
Jian Liu
Furong Qin
Xiya Huang
Chunjun Ye
Lijiao Pei
Xuemei He
Hong Yan
Guangwen Lu
Xiangrong Song
Xiawei Wei
Yuquan Wei
author_sort Hong Lei
collection DOAJ
description ABSTRACT Respiratory syncytial virus (RSV) causes severe acute lower respiratory tract infections, especially in infants and the elderly. Developing an RSV vaccine that promotes a robust mucosal immune response is necessary to successfully prevent viral transmission and the development of severe disease. We previously reported that crosslinked carbon dots (CCD) may be an excellent adjuvant candidate for intranasal (IN) protein subunit vaccines. Considering the strong immunogenicity of RSV prefused F protein (preF), we prepared an IN RSV vaccine composed of the CCD adjuvant and the preF protein as antigen (CCD/preF) and evaluated the induced antigen‐specific humoral and cellular immunity. We found that IN immunization with the CCD/preF vaccine elicited strong serum IgG responses and mucosal immunity, including secreted IgA antibodies, tissue‐resident memory T (TRM) cells, and antigen‐specific B cells, which lasted for at least 1 year. In addition, a combination of intramuscular and IN immunization with CCD/preF vaccine induced stronger systemic and mucosal immunity. Together, this study proved the high immunogenicity of the CCD/preF vaccines and supported the university of the mucosal CCD adjuvant, supporting further development of the CCD/preF vaccine in larger animal models and clinical studies.
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spelling doaj-art-1c8650b35efa41c7a1d1af88c0f829e32025-08-20T02:17:34ZengWileyMedComm2688-26632025-04-0164n/an/a10.1002/mco2.70146Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular ImmunityHong Lei0Aqu Alu1Jingyun Yang2Cai He3Jie Shi4Weiqi Hong5Dandan Peng6Yu Zhang7Jian Liu8Furong Qin9Xiya Huang10Chunjun Ye11Lijiao Pei12Xuemei He13Hong Yan14Guangwen Lu15Xiangrong Song16Xiawei Wei17Yuquan Wei18Laboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaLaboratory of Aging Research and Cancer Drug Target State Key Laboratory of Biotherapy and Cancer Center National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu Sichuan People's Republic of ChinaABSTRACT Respiratory syncytial virus (RSV) causes severe acute lower respiratory tract infections, especially in infants and the elderly. Developing an RSV vaccine that promotes a robust mucosal immune response is necessary to successfully prevent viral transmission and the development of severe disease. We previously reported that crosslinked carbon dots (CCD) may be an excellent adjuvant candidate for intranasal (IN) protein subunit vaccines. Considering the strong immunogenicity of RSV prefused F protein (preF), we prepared an IN RSV vaccine composed of the CCD adjuvant and the preF protein as antigen (CCD/preF) and evaluated the induced antigen‐specific humoral and cellular immunity. We found that IN immunization with the CCD/preF vaccine elicited strong serum IgG responses and mucosal immunity, including secreted IgA antibodies, tissue‐resident memory T (TRM) cells, and antigen‐specific B cells, which lasted for at least 1 year. In addition, a combination of intramuscular and IN immunization with CCD/preF vaccine induced stronger systemic and mucosal immunity. Together, this study proved the high immunogenicity of the CCD/preF vaccines and supported the university of the mucosal CCD adjuvant, supporting further development of the CCD/preF vaccine in larger animal models and clinical studies.https://doi.org/10.1002/mco2.70146respiratory syncytial virus (RSV)intranasal vaccinecrosslinked carbon dot (CCD)adjuvantmucosal immunity
spellingShingle Hong Lei
Aqu Alu
Jingyun Yang
Cai He
Jie Shi
Weiqi Hong
Dandan Peng
Yu Zhang
Jian Liu
Furong Qin
Xiya Huang
Chunjun Ye
Lijiao Pei
Xuemei He
Hong Yan
Guangwen Lu
Xiangrong Song
Xiawei Wei
Yuquan Wei
Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity
MedComm
respiratory syncytial virus (RSV)
intranasal vaccine
crosslinked carbon dot (CCD)
adjuvant
mucosal immunity
title Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity
title_full Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity
title_fullStr Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity
title_full_unstemmed Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity
title_short Intranasal Inoculation of Cationic Crosslinked Carbon Dots‐Adjuvanted Respiratory Syncytial Virus F Subunit Vaccine Elicits Mucosal and Systemic Humoral and Cellular Immunity
title_sort intranasal inoculation of cationic crosslinked carbon dots adjuvanted respiratory syncytial virus f subunit vaccine elicits mucosal and systemic humoral and cellular immunity
topic respiratory syncytial virus (RSV)
intranasal vaccine
crosslinked carbon dot (CCD)
adjuvant
mucosal immunity
url https://doi.org/10.1002/mco2.70146
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