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Expression and function of the vitellogenin receptor in the hypopharyngeal glands of the honey bee Apis mellifera (Hymenoptera: Apidae) workers.
Dohanik, Virginia Teles; Medeiros-Santana, Luanda; Santos, Carolina Gonçalves; Santana, Weyder Cristiano; Serrão, José Eduardo.
Afiliación
  • Dohanik VT; Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Medeiros-Santana L; Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, Campus Rio Paranaíba, Rio Paranaíba, Brazil.
  • Santos CG; Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Santana WC; Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Serrão JE; Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil.
Arch Insect Biochem Physiol ; 116(1): e22120, 2024 May.
Article en En | MEDLINE | ID: mdl-38739744
ABSTRACT
The vitellogenin receptor (VgR) is essential for the uptake and transport of the yolk precursor, vitellogenin (Vg). Vg is synthesized in the fat body, released in the hemolymph, and absorbed in the ovaries, via receptor-mediated endocytosis. Besides its important role in the reproductive pathway, Vg occurs in nonreproductive worker honey bee, suggesting its participation in other pathways. The objective was to verify if the VgR occurs in the hypopharyngeal glands of Apis mellifera workers and how Vg is internalized by these cells. VgR occurrence in the hypopharyngeal glands was evaluated by qPCR analyses of VgR and immunohistochemistry in workers with different tasks. The VgR gene is expressed in the hypopharyngeal glands of workers with higher transcript levels in nurse honey bees. VgR is more expressed in 11-day-old workers from queenright colonies, compared to orphan ones. Nurse workers with developed hypopharyngeal glands present higher VgR transcripts than those with poorly developed glands. The immunohistochemistry results showed the co-localization of Vg, VgR and clathrin (protein that plays a major role in the formation of coated vesicles in endocytosis) in the hypopharyngeal glands, suggesting receptor-mediated endocytosis. The results demonstrate that VgR performs the transport of Vg to the hypopharyngeal glands, supporting the Ovary Ground Plan Hypothesis and contributing to the understanding of the role of this gland in the social context of honey bees.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas del Huevo / Receptores de Superficie Celular / Proteínas de Insectos / Hipofaringe Límite: Animals Idioma: En Revista: Arch Insect Biochem Physiol Asunto de la revista: BIOLOGIA / BIOQUIMICA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas del Huevo / Receptores de Superficie Celular / Proteínas de Insectos / Hipofaringe Límite: Animals Idioma: En Revista: Arch Insect Biochem Physiol Asunto de la revista: BIOLOGIA / BIOQUIMICA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos