Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES
Volume 15, Issue 10, Pages 2170-2181Publisher
IVYSPRING INT PUBL
DOI: 10.7150/ijbs.33310
Keywords
hyperproteinemia; animal model; reproductive development; vitellogenin; programmed cell death
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Funding
- National Natural Science Foundation of China [31672492]
- Provincial Key R&D Program of Jiangsu [BE2015317]
- China Agriculture Research System (CARS) [CARS-22]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX17_2031, KYCX19_1977]
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Hyperproteinemia is a severe metabolic disease characterized by abnormally elevated plasma protein concentrations (PPC). However, there is currently no reliable animal model for PPC, and the pathological mechanism of hyperproteinemia thus remains unclear. In this study, we evaluated the effects of hyperproteinemia on reproductive development in an invertebrate silkworm model with a controllable PPC and no primary disease effects. High PPC inhibited the synthesis of vitellogenin and 30K protein essential for female ovarian development in the fat body of metabolic tissues, and inhibited their transport through the hemolymph to the ovary. High PPC also induced programmed cell death in testis and ovary cells, slowed the development of germ cells, and significantly reduced the reproductive coefficient. Furthermore, the intensities and mechanisms of high-PPC-induced reproductive toxicity differed between sexes in this silkworm model.
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