Caspase-3 Cleaves Extracellular Vesicle Proteins During Auditory Brainstem Development.
Caspase-3 Cleaves Extracellular Vesicle Proteins During Auditory Brainstem Development.
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DOI:
10.3389/fncel.2020.573345
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发表时间:
2020
影响因子:
5.3
通讯作者:
Cramer KS
中科院分区:
文献类型:
--
作者:
Weghorst F;Mirzakhanyan Y;Samimi K;Dhillon M;Barzik M;Cunningham LL;Gershon PD;Cramer KS
Sound localization requires extremely precise development of auditory brainstem circuits, the molecular mechanisms of which are largely unknown. We previously demonstrated a novel requirement for non-apoptotic activity of the protease caspase-3 in chick auditory brainstem development. Here, we used mass spectrometry to identify proteolytic substrates of caspase-3 during chick auditory brainstem development. These auditory brainstem caspase-3 substrates were enriched for proteins previously shown to be cleaved by caspase-3, especially in non-apoptotic contexts. Functional annotation analysis revealed that our caspase-3 substrates were also enriched for proteins associated with several protein categories, including proteins found in extracellular vesicles (EVs), membrane-bound nanoparticles that function in intercellular communication. The proteome of EVs isolated from the auditory brainstem was highly enriched for our caspase-3 substrates. Additionally, we identified two caspase-3 substrates with known functions in axon guidance, namely Neural Cell Adhesion Molecule (NCAM) and Neuronal-glial Cell Adhesion Molecule (Ng-CAM), that were found in auditory brainstem EVs and expressed in the auditory pathway alongside cleaved caspase-3. Taken together, these data suggest a novel developmental mechanism whereby caspase-3 influences auditory brainstem circuit formation through the proteolytic cleavage of extracellular vesicle (EV) proteins.
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影响因子:
2.5
作者:
Cramer, KS;Karam, SD;Rubel, EW
通讯作者:
Rubel, EW
影响因子:
4.6
作者:
Brennan, K.;Martin, K.;Mc Gee, M. M.
通讯作者:
Mc Gee, M. M.
影响因子:
5.7
作者:
Cioni, Jean-Michel;Koppers, Max;Holt, Christine E.
通讯作者:
Holt, Christine E.
影响因子:
5.1
作者:
Bucan V;Vaslaitis D;Peck CT;Strauß S;Vogt PM;Radtke C
通讯作者:
Radtke C
DOI:
10.1111/j.2517-6161.1995.tb02031.x
发表时间:
1995-01-01
影响因子:
5.8
作者:
BENJAMINI, Y;HOCHBERG, Y
通讯作者:
HOCHBERG, Y