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Usage

Uses

Used in Insect Research:
Bursicon is used as a research tool for studying the hormonal regulation of ecdysis and postecdysis processes in insects. It helps scientists understand the molecular mechanisms underlying the expansion, tanning, and sclerotization of the insect cuticle, as well as the role of bursicon in feeding behavior.
Used in Crustacean Research:
Bursicon is also used as a research tool in crustacean biology, particularly for studying the innate immune response. It aids researchers in exploring the role of bursicon in crustacean immunity and its potential applications in enhancing the resistance of crustaceans to pathogens.
Used in Pharmaceutical Development:
Bursicon has potential applications in the development of pharmaceuticals targeting insect-related diseases and pests. By modulating the ecdysis and postecdysis processes, bursicon-based drugs could potentially control insect populations or treat insect-borne diseases.
Used in Aquaculture:
In the aquaculture industry, bursicon may be used to enhance the growth and health of crustaceans, such as shrimp and crabs, by improving their immune response and overall well-being. This could lead to increased productivity and reduced disease incidence in crustacean farming operations.

Properties

burs, Mr 15,678; pburs, Mr 13,059.

Biological functions

In D. melanogaster, bursicon controls cuticle sclerotization and melanization.In D. melanogaster, B. mori, and the beetle Tribolium castaneum, it is necessary for the expansion and hardening of the wings.The expansion of wings requires bursicon-induced extensibility of the wing cuticle, as demonstrated in the moth M. sexta.In D. melanogaster, burs-β is an important signal for controlling ecdysis behavior.In the crab C. sapidus, bursicon controls the deposition and thickening of the new cuticle as well as the granulation of hemocytes.In both Procambarus clarkii and D. melanogaster, bursicon homodimers induce innate immunity by altering antimicrobial peptides via Relish.Besides, burs-α in D. melanogaster binds to its neuronal receptor DLgr2, eventually regulating organismal resistance to metabolic challenges through Adipokinetic hormone signaling.

Regulation of synthesis and release

In the larvae of D. melanogaster, bursicon appears to be released in two temporal waves, the first prior to the onset of ecdysis and the second immediately after ecdysis onset. In adults, bursicon is also released in two consecutive waves. Initial bursicon secretion from two neurons in the SG subsequently elicits its secondary release from a cluster of abdominal neurons, which controls the expansion, hardening, and pigmentation of the cuticle and wings.In Neocaridina heteropoda, the abdominal ganglion is the main neurohemal release site of bursicon.