A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice

TFPR1 is a novel adjuvant for protein and peptide antigens, which has been demonstrated in BALB/c mice in our previous studies; however, its adjuvanticity in mice with different genetic backgrounds remains unknown, and its adjuvanticity needs to be improved to fit the requirements for various vaccin...

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Main Authors: Qiao Li, Zhihua Liu, Yi Liu, Chen Liang, Jiayi Shu, Xia Jin, Chuanyou Li, Zhihua Kou
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/9/12/1408
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author Qiao Li
Zhihua Liu
Yi Liu
Chen Liang
Jiayi Shu
Xia Jin
Chuanyou Li
Zhihua Kou
author_facet Qiao Li
Zhihua Liu
Yi Liu
Chen Liang
Jiayi Shu
Xia Jin
Chuanyou Li
Zhihua Kou
author_sort Qiao Li
collection DOAJ
description TFPR1 is a novel adjuvant for protein and peptide antigens, which has been demonstrated in BALB/c mice in our previous studies; however, its adjuvanticity in mice with different genetic backgrounds remains unknown, and its adjuvanticity needs to be improved to fit the requirements for various vaccines. In this study, we first compared the adjuvanticity of TFPR1 in two commonly used inbred mouse strains, BALB/c and C57BL/6 mice, in vitro and in vivo, and demonstrated that TFPR1 activated TLR2 to exert its immune activity in vivo. Next, to prove the feasibility of TFPR1 acting as a major component of combined adjuvants, we prepared a combined adjuvant, TF–Al, by formulating TFPR1 and alum at a certain ratio and compared its adjuvanticity with that of TFPR1 and alum alone using OVA and recombinant HBsAg as model antigens in both BALB/c and C57BL/6 mice. Results showed that TFPR1 acts as an effective vaccine adjuvant in both BALB/c mice and C57BL/6 mice, and further demonstrated the role of TLR2 in the adjuvanticity of TFPR1 in vivo. In addition, we obtained a novel combined adjuvant, TF–Al, based on TFPR1, which can augment antibody and cellular immune responses in mice with different genetic backgrounds, suggesting its promise for vaccine development in the future.
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spelling doaj.art-a0188cbb92ad4111a205c166d150f2bc2023-11-23T10:53:56ZengMDPI AGVaccines2076-393X2021-11-01912140810.3390/vaccines9121408A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c MiceQiao Li0Zhihua Liu1Yi Liu2Chen Liang3Jiayi Shu4Xia Jin5Chuanyou Li6Zhihua Kou7Department of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, ChinaShanghai Public Health Clinical Center, Fudan University, Shanghai 201508, ChinaDepartment of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, ChinaDepartment of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, ChinaShanghai Public Health Clinical Center, Fudan University, Shanghai 201508, ChinaShanghai Public Health Clinical Center, Fudan University, Shanghai 201508, ChinaDepartment of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, ChinaShanghai Public Health Clinical Center, Fudan University, Shanghai 201508, ChinaTFPR1 is a novel adjuvant for protein and peptide antigens, which has been demonstrated in BALB/c mice in our previous studies; however, its adjuvanticity in mice with different genetic backgrounds remains unknown, and its adjuvanticity needs to be improved to fit the requirements for various vaccines. In this study, we first compared the adjuvanticity of TFPR1 in two commonly used inbred mouse strains, BALB/c and C57BL/6 mice, in vitro and in vivo, and demonstrated that TFPR1 activated TLR2 to exert its immune activity in vivo. Next, to prove the feasibility of TFPR1 acting as a major component of combined adjuvants, we prepared a combined adjuvant, TF–Al, by formulating TFPR1 and alum at a certain ratio and compared its adjuvanticity with that of TFPR1 and alum alone using OVA and recombinant HBsAg as model antigens in both BALB/c and C57BL/6 mice. Results showed that TFPR1 acts as an effective vaccine adjuvant in both BALB/c mice and C57BL/6 mice, and further demonstrated the role of TLR2 in the adjuvanticity of TFPR1 in vivo. In addition, we obtained a novel combined adjuvant, TF–Al, based on TFPR1, which can augment antibody and cellular immune responses in mice with different genetic backgrounds, suggesting its promise for vaccine development in the future.https://www.mdpi.com/2076-393X/9/12/1408adjuvantTFPR1combined adjuvantinbred mouse strainsTLR2
spellingShingle Qiao Li
Zhihua Liu
Yi Liu
Chen Liang
Jiayi Shu
Xia Jin
Chuanyou Li
Zhihua Kou
A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice
Vaccines
adjuvant
TFPR1
combined adjuvant
inbred mouse strains
TLR2
title A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice
title_full A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice
title_fullStr A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice
title_full_unstemmed A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice
title_short A Combined Adjuvant TF–Al Consisting of TFPR1 and Aluminum Hydroxide Augments Strong Humoral and Cellular Immune Responses in Both C57BL/6 and BALB/c Mice
title_sort combined adjuvant tf al consisting of tfpr1 and aluminum hydroxide augments strong humoral and cellular immune responses in both c57bl 6 and balb c mice
topic adjuvant
TFPR1
combined adjuvant
inbred mouse strains
TLR2
url https://www.mdpi.com/2076-393X/9/12/1408
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