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Keywords: Immunity
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Journal Articles
J Exp Biol (2023) 226 (21): jeb246332.
Published: 8 November 2023
...David Costantini; Julia Schad; Gábor Á. Czirják; Christian C. Voigt ABSTRACT The immune system plays an important role in defending against pathogens and regulating physiological homeostasis, but the strength of the immune responses depends on the type of pathogen. The immune system of bats shows...
Journal Articles
J Exp Biol (2023) 226 (16): jeb246306.
Published: 21 August 2023
...Mahmoud I. El-Saadi; Kaylen Brzezinski; Aaron Hinz; Laura Phillips; Alex Wong; Lucie Gerber; Johannes Overgaard; Heath A. MacMillan ABSTRACT The insect gut, which plays a role in ion and water balance, has been shown to leak solutes in the cold. Cold stress can also activate insect immune systems...
Includes: Supplementary data
Journal Articles
J Exp Biol (2023) 226 (4): jeb244911.
Published: 24 February 2023
...Laura V. Ferguson; Shelley A. Adamo ABSTRACT Insects are critical to our ecosystems, but we do not fully understand their future in our warming world. Rising temperatures are affecting insect physiology in myriad ways, including changes to their immune systems and the ability to fight infection...
Journal Articles
J Exp Biol (2022) 225 (16): jeb243910.
Published: 23 August 2022
...Hue Dinh; Ida Lundbäck; Sheemal Kumar; Anh The Than; Juliano Morimoto; Fleur Ponton ABSTRACT Nutrition is a central factor influencing immunity and resistance to infection, but the extent to which nutrition during development affects adult responses to infections is poorly understood. Our study...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (5): jeb243460.
Published: 8 March 2022
... activity. ILP3 upregulated insulin-insulin growth factor signaling in hemocytes, but few genes – including almost no transcripts for immune factors – were differentially expressed. ILP3 also stimulated circulating hemocytes to increase in two other anautogenous ( Anopheles gambiae and Culex...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (21): jeb233221.
Published: 4 November 2020
...Shabbir Ahmed; Yonggyun Kim ABSTRACT Several prostaglandins (PGs) and PG-synthesizing enzymes have been identified from insects. PGs mediate cellular and humoral immune responses. However, uncontrolled and prolonged immune responses might have adverse effects on survival. PG catabolism in insects...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (15): jeb225821.
Published: 13 August 2020
...Tania Y. Estévez-Lao; Leah T. Sigle; Scherly N. Gomez; Julián F. Hillyer ABSTRACT The circulatory and immune systems of mosquitoes are functionally integrated. An infection induces the migration of hemocytes to the dorsal vessel, and specifically, to the regions surrounding the ostia of the heart...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (14): jeb207019.
Published: 23 July 2019
...Shabbir Ahmed; Ariful Hasan; Yonggyun Kim ABSTRACT Prostaglandins (PGs) mediate various physiological functions in insects. Specifically, PGE 2 is known to mediate immunity and egg-laying behavior in the beet armyworm, Spodoptera exigua . A PGE 2 synthase 2 (Se-PGES2) has been identified...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (10): jeb202853.
Published: 24 May 2019
...://www.biologists.com/user-licence-1-1/ Highlighted Article: Nematodal infection and fungal infection cause changes in insect vitellogenin mRNA and protein expression: vitellogenin inhibits the growth of entomotoxic bacteria from the nematode Steinernema carpocapsae . Yolk protein Immunity...
Includes: Supplementary data
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J Exp Biol (2018) 221 (12): jeb181107.
Published: 22 June 2018
... observe in the bulbous chamber and anterior aorta of adult A. gambiae. Hemocytes are immune cells that circulate with the hemocoel or are attached to tissues (sessile). In adult mosquitoes, an infection induces the aggregation of hemocytes at the periostial regions of the heart ( King and Hillyer...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (6): jeb175158.
Published: 26 March 2018
... the contents of the accessory testes actually enhanced bacterial growth, the contents of the spermatheca strongly inhibited it. Furthermore, mating appears to activate the general immune system in queens. However, antimicrobial activity in both the spermatheca and the control tissue (head–thorax homogenate...
Includes: Supplementary data
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Journal Articles
J Exp Biol (2017) 220 (18): 3209–3221.
Published: 15 September 2017
... fractions can be categorized into two functional groups, i.e. biomineralization and immune response cells. Gene expression profiles of the putative biomineralizing hemocytes indicate that in addition to their proposed role in mineral transport, hemocytes also contribute to the formation of the ECM, thus...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (2): 237–246.
Published: 15 January 2017
... manipulation by the parasite, or is a by-product (e.g. host immune response) or side effect of infection (e.g. energetic loss), remains controversial. To understand the physiological mechanisms that generate these behavioural changes, we quantified the behavioural profiles of experimentally infected fish...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (13): 2106–2115.
Published: 1 July 2015
... and immune systems and in the production of coloured signals in various taxa, particularly birds. When birds have expended large amounts of carotenoids to feather growth such as after autumn moult, bird health and oxidative status might be more constrained. We tested this hypothesis in a bird species...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (21): 3929–3934.
Published: 1 November 2014
...Jennie S. Garbutt; Anna J. P. O'Donoghue; Seanna J. McTaggart; Philip J. Wilson; Tom J. Little Immunity in vertebrates is well established to develop with time, but the ontogeny of defence in invertebrates is markedly less studied. Yet, age-specific capacity for defence against pathogens, coupled...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (19): 3416–3424.
Published: 1 October 2014
... ) workers with the parasite Nosema ceranae or an immune stimulation and tracked their flight activity over their lifetime with an optic counter. We found that bees responded differently to each stress: both Nosema -infected and immune-challenged bees performed a lower number of daily flights compared...
Includes: Supplementary data