波动的温暖和潮湿条件会对疟疾载体安诺菲莱斯·斯蒂芬西斯 (Anopheles stephensi) 的免疫和发育产生不同的影响
Thais Lemos-Silva1, Emma De Neef1, Yarno Valgaerts1
1Department of Biomedical Sciences, Institute of Tropical Medicine Antwerp, Antwerp, Belgium.
Global change biology
|August 5, 2025
概括
现实的气候波动促进蚊子免疫力,加速发展. 然而,随后的免疫抑制可能会增加疟疾传播风险,影响载体控制策略.
科学领域:
- 环境科学环境科学
- 免疫学 免疫学 免疫学
- 载体生物学 载体生物学
背景情况:
- 温度和湿度等环境因素影响蚊子的免疫力和行为.
- 气候变化影响蚊子的分布,需要对环境影响进行研究.
- 现有的研究经常使用不切实际的静态环境条件.
研究的目的:
- 研究现实的高温和湿度波动对蚊子天生的免疫力的影响.
- 评估对Anopheles stephensi发育,寿命和免疫基因表达的影响.
- 评估蚊子控制基因改造策略对环境的敏感性.
主要方法:
- 暴露的Anopheles stephensi (卵到成年) 暴露在白天的温度和湿度波动中.
- 分析了先天免疫基因表达,成人前发育和成人寿命.
- 进行细菌感染,以评估在波动条件下的免疫反应和存活率.
主要成果:
- 较高的波动条件启动了基础免疫反应,加速了发育,但没有减少寿命.
- 细菌感染诱导了复杂的免疫重编程,提高了幼虫和成人的生存率.
- 波动的条件改变了转基因蚊子中使用的促进剂的活性.
结论:
- 现实的环境变化影响蚊子的免疫力和发育.
- 升高的条件可能最初会降低载体容量,但后来可能会增加对Plasmodium的敏感性.
- 准确预测气候变化对疾病传播的影响,需要在研究中纳入环境变化.
相关概念视频
01:26Factors Affecting the Risk of Infection
12.3K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.3K
02:27Background and Environment Affect Phenotype
6.7K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.7K