1
|
Ke C, Ma Y, Pan D, Wan Z, Feng T, Yu D, Liu X, Wang H, Du M, Huang L, Zhang Y, Du L, Wang X, Li K, Yu D, Zhang M, Huang J, Qu J, Ren L, Hu Y, Cao G, Hu X, Wu S, Han H, Zhao Y. FcRn is not the receptor mediating the transfer of serum IgG to colostrum in pigs. Immunology 2021; 163:448-459. [PMID: 33738807 DOI: 10.1111/imm.13328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 02/02/2023] Open
Abstract
In contrast to humans or rabbits, in which maternal IgG is transmitted to offspring prenatally via the placenta or the yolk sac, large domestic animals such as pigs, cows and sheep transmit IgG exclusively through colostrum feeding after delivery. The extremely high IgG content in colostrum is absorbed by newborns via the small intestine. Although it is widely accepted that the neonatal Fc receptor, FcRn, is the receptor mediating IgG transfer across both the placenta and small intestine, it remains unclear whether FcRn also mediates serum IgG transfer across the mammary barrier to colostrum/milk, especially in large domestic animals. In this study, using a FcRn knockout pig model generated with a CRISPR-Cas9-based approach, we clearly demonstrate that FcRn is not responsible for the IgG transfer from serum to colostrum in pigs, although like in other mammals, it is involved in IgG homeostasis and mediates IgG absorption in the small intestine of newborns.
Collapse
Affiliation(s)
- Cuncun Ke
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China.,Joint National Laboratory for Antibody Drug Engineering, Henan International Union Lab of Antibody Medicine, Henan University School of Medicine, Kaifeng, China
| | - Yonghe Ma
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Dengke Pan
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Zihui Wan
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Tao Feng
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Dawei Yu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Xiaojuan Liu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Haitao Wang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Minjie Du
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Linhua Huang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yifu Zhang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lijuan Du
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Xifeng Wang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Kongpan Li
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Di Yu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Ming Zhang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Jinwei Huang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Junwei Qu
- Joint National Laboratory for Antibody Drug Engineering, Henan International Union Lab of Antibody Medicine, Henan University School of Medicine, Kaifeng, China
| | - Liming Ren
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Yanzhong Hu
- Joint National Laboratory for Antibody Drug Engineering, Henan International Union Lab of Antibody Medicine, Henan University School of Medicine, Kaifeng, China
| | - Gengsheng Cao
- Henan Engineering Laboratory for Mammary Bioreactor, School of Life Science, Henan University, Kaifeng, China
| | - Xiaoxiang Hu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Sen Wu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Haitang Han
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Yaofeng Zhao
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| |
Collapse
|
2
|
Caballero-Flores G, Sakamoto K, Zeng MY, Wang Y, Hakim J, Matus-Acuña V, Inohara N, Núñez G. Maternal Immunization Confers Protection to the Offspring against an Attaching and Effacing Pathogen through Delivery of IgG in Breast Milk. Cell Host Microbe 2019; 25:313-323.e4. [PMID: 30686564 DOI: 10.1016/j.chom.2018.12.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/02/2018] [Accepted: 12/19/2018] [Indexed: 12/15/2022]
Abstract
Owing to immature immune systems and impaired colonization resistance mediated by the microbiota, infants are more susceptible to enteric infections. Maternal antibodies can provide immunity, with maternal vaccination offering a protective strategy. We find that oral infection of adult females with the enteric pathogen Citrobacter rodentium protects dams and offspring against oral challenge. Parenteral immunization of dams with heat-inactivated C. rodentium reduces pathogen loads and mortality in offspring but not mothers. IgG, but not IgA or IgM, transferred through breast milk to the intestinal lumen of suckling offspring, coats the pathogen and reduces intestinal colonization. Protective IgG largely recognizes virulence factors encoded within the locus of enterocyte effacement (LEE) pathogenicity island, including the adhesin Intimin and T3SS filament EspA, which are major antigens conferring protection. Thus, pathogen-specific IgG in breast milk induced during maternal infection or immunization protects neonates against infection with an attaching and effacing pathogen.
Collapse
Affiliation(s)
- Gustavo Caballero-Flores
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Kei Sakamoto
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Melody Y Zeng
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yaqiu Wang
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-0006, Japan
| | - Jill Hakim
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Violeta Matus-Acuña
- Programa de Ecología Genómica, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210, Mexico; School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI 48109, USA
| | - Naohiro Inohara
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Gabriel Núñez
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| |
Collapse
|