Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Chemosensory protein 3 is a brain host factor for the induction of enhanced-locomotory activity in the BmNPV-silkworm infection model
Δημιουργός/Συγγραφέας:	Feng, Min Fei, Shigang Papakyriakou, Athanasios Christodoulou, Eleanna Lai, Wenxuan Luo, Wenjie Xia, Junming Huang, Yigui [EL] Ζωγράφος, Σπύρος Ε.[EN] Zographos, Spyros E. Swevers, Luc Sun, Jingchen
Ημερομηνία:	2025-12
Γλώσσα:	Αγγλικά
ISSN:	1553-7374
DOI:	10.1371/journal.ppat.1013701
Άλλο:	41325423
Περίληψη:	Although it is reported that the protein tyrosine phosphatase gene of baculovirus (group I nucleopolyhedrovirus) can induce enhanced locomotory activity (ELA) in caterpillars, our understanding of the host factors that are involved in the regulation of the behavioral change is still limited. Previously, single-nucleus RNA sequencing (snRNA-seq) was used to identify 19 distinct clusters representing Kenyon cell, glial cell, olfactory projection neuron, optic lobes neuron, hemocyte, muscle cell types and other unannotated cells in the silkworm larvae brains. Analysis of viral transcriptomes in each brain cell subset revealed that all brain cells could be infected by Bombyx mori nucleopolyhedrovirus (BmNPV) at 96 hours post infection but infection occurred at low levels. Furthermore, we found that chemosensory protein 3 (CSP3), encoding a small secreted protein that is possibly implicated in the transport of semiochemicals, was significantly up-regulated after BmNPV infection in most of the brain cell clusters. Knockdown of BmCSP3 resulted in significantly reduced ELA in BmNPV-infected silkworm larvae. In parallel, targeted metabolomics revealed significant shifts in the abundance of specific lipids and neurotransmitters. Subsequently, structural modeling and molecular dynamics experiments indicated that CSP3 has a large hydrophobic pocket that manifests significant flexibility and likely can accommodate divergent ligand structures or mixtures of them, including known neurotransmitters of the brain and (lyso)glycerophospholipids from larval head samples. In vitro binding assays have confirmed the interaction of several neurotransmitters and an eicosanoid to purified BmCSP3 protein. Our study provides insights into the regulation of insect behavior following analysis of viral infection at the single-cell transcriptome level and reveals an unexpected function for CSP proteins in the insect brain.
Τίτλος πηγής δημοσίευσης:	PLoS pathogens
Τόμος/Κεφάλαιο:	21
Τεύχος:	12
Θεματική Κατηγορία:	[EL] Μοριακή Βιολογία[EN] Molecular Biology [EL] Δομική Βιολογία[EN] Structural Biology [EL] Βιοχημεία[EN] Biochemistry [EL] Μικροβιολογία[EN] Microbiology [EL] Νευροεπιστήμη. Βιολογική ψυχιατρική. Νευροψυχιατρική[EN] Neurosciences. Biological psychiatry. Neuropsychiatry [EL] Γεωργία[EN] Agriculture
Λέξεις-Κλειδιά:	Animals Larva Host-Pathogen Interactions Bombyx Brain Insect Proteins Nucleopolyhedroviruses
Χρηματοδοτικό πρόγραμμα:	Guangzhou fundamental research project Specific university discipline construction project National Foreign Expert Human Project South China Agricultural University high-level talent launch project
Αναγνωριστικό χρηματοδοτικού προγράμματος:	2025A04J5442 2023B10564003 H20240495
Κάτοχος πνευματικών δικαιωμάτων:	© 2025 Feng et al
Όροι και προϋποθέσεις δικαιωμάτων:	This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https:// doi.org/10.1371/journal.ppat.1013701
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο