期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 14, 页码 -出版社
MDPI
DOI: 10.3390/ijms23147767
关键词
hematopoiesis; Drosophila; lymph gland; HSC; niche
资金
- National Research, Development and Innovation Office [NKFIH-871-3/2020, OTKA K-131484]
The fruit fly, Drosophila melanogaster, has been a valuable model organism for studying hematopoiesis regulation. The lymph gland of the fly larva exhibits similar features and functions to the hematopoietic stem cell niche in vertebrates. The use of advanced tools in Drosophila research has allowed for a detailed understanding of the cellular composition and regulatory networks in the lymph gland.
During the past 60 years, the fruit fly, Drosophila melanogaster, has proven to be an excellent model to study the regulation of hematopoiesis. This is not only due to the evolutionarily conserved signalling pathways and transcription factors contributing to blood cell fate, but also to convergent evolution that led to functional similarities in distinct species. An example of convergence is the compartmentalization of blood cells, which ensures the quiescence of hematopoietic stem cells and allows for the rapid reaction of the immune system upon challenges. The lymph gland, a widely studied hematopoietic organ of the Drosophila larva, represents a microenvironment with similar features and functions to classical hematopoietic stem cell niches of vertebrates. Lymph gland studies were effectively supported by the unparalleled toolkit developed in Drosophila, which enabled the high-resolution investigation of the cellular composition and regulatory interaction networks of the lymph gland. In this review, we summarize how our understanding of lymph gland structure and hematopoietic cell-to-cell communication evolved during the past decades and compare their analogous features to those of the vertebrate hematopoietic stem cell niche.
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