PI3K/AKT pathway modulation and cold acclimation alleviation concerning apoptosis and necroptosis in broiler thymus

Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved..

Moderate cold stimulation regulates the thymus's growth and function and facilitates cold acclimatization in broilers. However, the underlying mechanism remains unknown. To explore the possible mechanism of the thymus in cold-acclimated broilers against cold stress, 240 one-day-old Arbor Acres (AA) broilers were assigned to 2 groups randomly. The control group (C) was housed at conventional temperatures. The temperature during the first week was 33°C to 34°C. Between the ages of 8 and 32 d, the temperature was lowered by 1°C every 2 d, i.e., gradually from 32°C to 20°C, and then maintained at 20°C until 42 d of age. The cold-acclimated group (C-3) was housed at the same temperature as C from 1 to 7 d after birth. Between 8 and 42 d, the temperature of C-3 was 3°C colder than C. After 24 h exposure to acute cold stress (ACS) at 42 d, C and C-3 were named as S and S-3. The results showed that ACS was able to induce oxidation stress, modulate PI3K/AKT signal, and cause necroptosis and apoptosis in broiler thymus. By contrast, cold acclimation could alleviate apoptosis and necroptosis induced by cold stress via alleviating oxidative stress, efficiently activating the PI3K/AKT signal, as well as decreasing apoptotic and necrotic genes' levels. This study offers a novel theoretical basis for cold acclimation to improve the body's cold tolerance.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:103

Enthalten in:

Poultry science - 103(2024), 5 vom: 23. Apr., Seite 103634

Sprache:

Englisch

Beteiligte Personen:

Su, Yingying [VerfasserIn]
Li, Tingting [VerfasserIn]
He, Xinyue [VerfasserIn]
Sun, Hanqing [VerfasserIn]
Li, Jianhong [VerfasserIn]

Links:

Volltext

Themen:

Apoptosis
Avian Proteins
Broiler
Cold acclimation
EC 2.7.1.-
EC 2.7.11.1
Journal Article
Necroptosis
Oxidative stress
Phosphatidylinositol 3-Kinases
Proto-Oncogene Proteins c-akt

Anmerkungen:

Date Completed 30.04.2024

Date Revised 30.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.psj.2024.103634

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370269632