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In Vitro Immunoregulatory Role of Recombinant Ancylostoma Ceylanicum Calreticulin

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Date 2024 Mar 5
PMID 38443772
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Abstract

Ancylostoma ceylanicum is a zoonotic soil-derived nematode that parasitizes the intestines of humans and animals (dogs and cats), leading to malnutrition and iron-deficiency anemia. Helminth parasites secrete calreticulin (CRT), which regulates or blocks the host's immune response. However, no data on A. ceylanicum calreticulin (Ace-CRT) are available. We investigated the biological function of recombinant Ace-CRT (rAce-CRT). rAce-CRT showed reliable antigenicity and stimulated the proliferation of mouse splenocytes and canine peripheral blood mononuclear cells. Quantitative reverse-transcription PCR assays revealed that rAce-CRT primarily promoted the expression of T helper 2 cytokines, particularly IL-13, in canine peripheral blood lymphocytes. rAce-CRT inhibited complement-mediated sheep erythrocyte hemolysis in vitro. Our findings indicate that Ace-CRT plays an immunomodulatory role and may be a promising candidate molecule for a hookworm vaccine.

References
1.
Espindola S, Vilches-Flores A, Hernandez-Echeagaray E . 3-Nitropropionic acid modifies neurotrophin mRNA expression in the mouse striatum: 18S-rRNA is a reliable control gene for studies of the striatum. Neurosci Bull. 2012; 28(5):517-31. PMC: 5561911. DOI: 10.1007/s12264-012-1259-x. View

2.
Balic A, Harcus Y, Taylor M, Brombacher F, Maizels R . IL-4R signaling is required to induce IL-10 for the establishment of T(h)2 dominance. Int Immunol. 2006; 18(10):1421-31. DOI: 10.1093/intimm/dxl075. View

3.
He L, Abuzeid A, Zhuang T, Zhao Q, Zhu S, Chen X . Expression and biological functions of Ancylostoma ceylanicum saposin-like protein. Parasitol Res. 2021; 120(11):3805-3813. DOI: 10.1007/s00436-021-07313-6. View

4.
Rzepecka J, Rausch S, Klotz C, Schnoller C, Kornprobst T, Hagen J . Calreticulin from the intestinal nematode Heligmosomoides polygyrus is a Th2-skewing protein and interacts with murine scavenger receptor-A. Mol Immunol. 2008; 46(6):1109-19. DOI: 10.1016/j.molimm.2008.10.032. View

5.
Aula O, McManus D, Weerakoon K, Olveda R, Ross A, Rogers M . Molecular identification of in the Philippines. Parasitology. 2020; 147(14):1718-1722. PMC: 10317720. DOI: 10.1017/S0031182020001547. View