As an invertebrate, the compound ascidian Botryllus schlosseri faces nonself only with innate immunity. In this species, we already identified the key components of the lectin and alternative complement activation pathways. In the present work, by mining the transcriptome, we identified a single transcript codifying for a protein, member of the C1q-domain-containing protein family, with a signal peptide followed by two globular C1q (gC1q) domains. It shares a similar domain organisation with C1q/TNF-related proteins 4, the only vertebrate protein family with two gC1q domains. Our gC1q domain-containing protein, called BsC1qDC, is actively transcribed by immunocytes. The transcription is modulated during the Botryllus blastogenetic cycle and is upregulated following the injection of Bacillus clausii cells in the circulation. Furthermore, the injection of bsc1qdc iRNA in the vasculature results in decreased transcription of the gene and a significant impairment of phagocytosis and degranulation, suggesting the involvement of this molecule in immune responses.

Characterisation and functional role of a novel C1qDC protein from a colonial ascidian / Peronato, A; Minervini, G; Tabarelli, M; Ballarin, L; Franchi, N. - In: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY. - ISSN 0145-305X. - 122:(2021), p. 104077. [10.1016/j.dci.2021.104077]

Characterisation and functional role of a novel C1qDC protein from a colonial ascidian

N, Franchi
2021

Abstract

As an invertebrate, the compound ascidian Botryllus schlosseri faces nonself only with innate immunity. In this species, we already identified the key components of the lectin and alternative complement activation pathways. In the present work, by mining the transcriptome, we identified a single transcript codifying for a protein, member of the C1q-domain-containing protein family, with a signal peptide followed by two globular C1q (gC1q) domains. It shares a similar domain organisation with C1q/TNF-related proteins 4, the only vertebrate protein family with two gC1q domains. Our gC1q domain-containing protein, called BsC1qDC, is actively transcribed by immunocytes. The transcription is modulated during the Botryllus blastogenetic cycle and is upregulated following the injection of Bacillus clausii cells in the circulation. Furthermore, the injection of bsc1qdc iRNA in the vasculature results in decreased transcription of the gene and a significant impairment of phagocytosis and degranulation, suggesting the involvement of this molecule in immune responses.
122
104077
Characterisation and functional role of a novel C1qDC protein from a colonial ascidian / Peronato, A; Minervini, G; Tabarelli, M; Ballarin, L; Franchi, N. - In: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY. - ISSN 0145-305X. - 122:(2021), p. 104077. [10.1016/j.dci.2021.104077]
Peronato, A; Minervini, G; Tabarelli, M; Ballarin, L; Franchi, N
File in questo prodotto:
File Dimensione Formato  
2021 DCI (C1q).pdf

non disponibili

Dimensione 6.4 MB
Formato Adobe PDF
6.4 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1252937
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact