Heat Hardening Ameliorates Apoptotic and Inflammatory Effects Through Increased Autophagy in Mussels

被引:0
作者
Georgoulis, Ioannis [1 ]
Giantsis, Ioannis A. [2 ]
Michaelidis, Basile [1 ]
Feidantsis, Konstantinos [3 ]
机构
[1] Aristotle Univ Thessaloniki, Sch Biol, Dept Zool, Lab Anim Physiol, Thessaloniki 54124, Greece
[2] Aristotle Univ Thessaloniki, Fac Agr Forestry & Nat Environm, Dept Anim Sci, Thessaloniki 54124, Greece
[3] Univ Patras, Sch Agr Sci, Dept Fisheries & Aquaculture, Mesolonghi 26504, Greece
关键词
Heat hardening; Mussel; Apoptosis; Autophagy; Inflammation; KAPPA-B; MYTILUS-GALLOPROVINCIALIS; TRANSCRIPTOMIC RESPONSES; THERMAL TOLERANCE; CLIMATE-CHANGE; PROTEIN HSP70; STRESS; ISCHEMIA; HORMESIS; OXYGEN;
D O I
10.1007/s10126-024-10371-3
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The severity, frequency, and duration of extreme events, in the context of global warming, have placed many marine ecosystems at high risk. Therefore, the application of methods that can mediate the impacts of global warming on marine organisms seems to be an emerging necessity in the near term. In this context, enhancing the thermal resilience of marine organisms may be crucial for their sustainability. It has been shown that the repeated time-limited exposure of an organism to an environmental stimulus modifies its response mode, thus enhancing resilience and allowing adaptation of the physiological and developmental phenotype to environmental stress. In the present study, we investigated the "stress memory" effect caused by heat hardening on Mytilus galloprovincialis cellular pathways to identify the underlying biochemical mechanisms that enhance mussel thermal tolerance. Heat hardening resulted in increased ETS activity and ATP production and increased autophagic performance at all elevated temperatures (24 degrees C, 26 degrees C, and 28 degrees C). Furthermore, at these increased temperatures, apoptosis and inflammation remain at significantly lower levels in pregnant individuals than in nonhardened individuals. Autophagy, as a negative regulator of apoptosis, may lead to decreased damage to surrounding cells, which in turn alleviates inflammatory effects. In conclusion, the exposure of mussels to heat hardening seems to provide a physiological response that enhances heat tolerance and increases cell survival through increased energy production and reduced cell death and inflammatory responses. The latter can be utilized for the management and conservation of aquatic species of economic value or endangered status.
引用
收藏
页码:1271 / 1286
页数:16
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