Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish
B cells express a unique antibody protein which comprises two pairs of immunoglobulin (Ig) heavy (H) and light (L) chains. In addition to an invariable constant (C) region, IgH and IgL chains encompass a variable (V) region mediating antigen binding. This unique region stems from Ig V(D)J gene recom...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2021 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/96623 |
| Online Access: | https://hdl.handle.net/20.500.14352/96623 |
| Access Level: | Open access |
| Keyword: | 577.112 597 Bioquímica (Biología) 31 Ciencias Agrarias 2403 Bioquímica |
| _version_ | 1878730806380199936 |
|---|---|
| author | Perdiguero Jiménez, Pedro |
| author2 | Morel, Esther Díaz-Rosales, Patricia Tafalla, Carolina |
| author2_role | author author author |
| author_browse | Díaz-Rosales, Patricia Morel, Esther Perdiguero Jiménez, Pedro Tafalla, Carolina |
| author_facet | Perdiguero Jiménez, Pedro Morel, Esther Díaz-Rosales, Patricia Tafalla, Carolina |
| author_role | author |
| collection | Docta Complutense |
| description | B cells express a unique antibody protein which comprises two pairs of immunoglobulin (Ig) heavy (H) and light (L) chains. In addition to an invariable constant (C) region, IgH and IgL chains encompass a variable (V) region mediating antigen binding. This unique region stems from Ig V(D)J gene recombination, which generates diversity by assembling these gene segments into VHDJH and VLJL genes. To ensure that one B cell only expresses one antibody, VHDJH rearrangement occurs only in one IgH locus (allelic exclusion), whereas VLJL rearrangement only in either the κ or λ locus (isotype exclusion). However, teleosts express multiple IgLs encoded by distinct CL genes. Using single-cell transcriptomics, we have demonstrated the transcription of distinct rearranged VLJLCL genes in single rainbow trout B cells. Our results highlight the laxity of isotype exclusion in teleosts and strongly suggest that fish B cells can produce antibodies of different specificities. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_23bc3bb81dccb671f5c01a2959ecf5d0 |
| institution | Universidad Complutense de Madrid (UCM) |
| instname_str | Universidad Complutense de Madrid (UCM) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:docta.ucm.es:20.500.14352/96623 |
| publishDate | 2021 |
| publishDateSort | 2021 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | Docta Complutense |
| spelling | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish Perdiguero Jiménez, Pedro Morel, Esther Díaz-Rosales, Patricia Tafalla, Carolina 577.112 597 Bioquímica (Biología) 31 Ciencias Agrarias 2403 Bioquímica B cells express a unique antibody protein which comprises two pairs of immunoglobulin (Ig) heavy (H) and light (L) chains. In addition to an invariable constant (C) region, IgH and IgL chains encompass a variable (V) region mediating antigen binding. This unique region stems from Ig V(D)J gene recombination, which generates diversity by assembling these gene segments into VHDJH and VLJL genes. To ensure that one B cell only expresses one antibody, VHDJH rearrangement occurs only in one IgH locus (allelic exclusion), whereas VLJL rearrangement only in either the κ or λ locus (isotype exclusion). However, teleosts express multiple IgLs encoded by distinct CL genes. Using single-cell transcriptomics, we have demonstrated the transcription of distinct rearranged VLJLCL genes in single rainbow trout B cells. Our results highlight the laxity of isotype exclusion in teleosts and strongly suggest that fish B cells can produce antibodies of different specificities. Elsevier https://hdl.handle.net/20.500.14352/96623 |
| spellingShingle | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish Perdiguero Jiménez, Pedro 577.112 597 Bioquímica (Biología) 31 Ciencias Agrarias 2403 Bioquímica |
| title | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish |
| title_full | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish |
| title_fullStr | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish |
| title_full_unstemmed | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish |
| title_short | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish |
| title_sort | Individual B cells transcribe multiple rearranged immunoglobulin light chains in teleost fish |
| topic | 577.112 597 Bioquímica (Biología) 31 Ciencias Agrarias 2403 Bioquímica |
| topic_facet | 577.112 597 Bioquímica (Biología) 31 Ciencias Agrarias 2403 Bioquímica |
| url | https://hdl.handle.net/20.500.14352/96623 |