MCTP-1 modulates neurotransmitter release in C. elegans.

Mol Cell Neurosci

Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, Boulevard Juriquilla 3001, C.P. 76215 Juriquilla, Querétaro, México. Electronic address:

Published: September 2020

AI Article Synopsis

  • * In C. elegans, the gene mctp-1 is regulated by two promoters: one in the nervous system and another in the spermatheca.
  • * Loss of mctp-1 function leads to egg-laying issues and reduced movement, and mutants show decreased sensitivity to the drug aldicarb, indicating that MCTP-1 may influence synaptic vesicle release.

Article Abstract

Multiple C2 and Transmembrane Domain Proteins (MCTPs) are putative calcium sensors. Proteins that contain C2 domains play essential roles in membrane trafficking and exocytosis; however, MCTPs functions in neurotransmitter release are not known. Here we report that in C. elegans mctp-1 is under the control of two promoters - one active in the nervous system and the second in the spermatheca. We generated and characterized a loss of function amt1 mutant and compared it to a previously published loss of function mutant (av112). Loss of mctp-1 function causes defects in egg-laying, crawling velocity, and thrashing rates. Both amt1 and av112 mutants are hyposensitive to the acetylcholinesterase blocker aldicarb, suggesting that MCTP-1 may play a role in synaptic vesicle release.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.mcn.2020.103528DOI Listing

Publication Analysis

Top Keywords

neurotransmitter release
8
loss function
8
mctp-1
4
mctp-1 modulates
4
modulates neurotransmitter
4
release elegans
4
elegans multiple
4
multiple transmembrane
4
transmembrane domain
4
domain proteins
4

Similar Publications

To explore the effect of lithium carbonate combined with olanzapine on glucose and lipid metabolism, as well as gender differences in treating bipolar disorder (BD). 110 BD patients admitted to the Fifth People's Hospital of Luoyang from February 2022 to January 2024 were retrospectively included in the study. Patients were categorized into two groups based on treatment: The single group (lithium carbonate, n = 50) and the coalition group (lithium carbonate + olanzapine, n=60).

View Article and Find Full Text PDF

Regulation of Dopamine Release by Tonic Activity Patterns in the Striatal Brain Slice.

ACS Chem Neurosci

January 2025

Departments of Psychiatry and Neurology, Division of Molecular Therapeutics, New York State Psychiatric Institute, Columbia University Medical Center, New York, New York 10032, United States.

Voluntary movement, motivation, and reinforcement learning depend on the activity of ventral midbrain neurons, which extend axons to release dopamine (DA) in the striatum. These neurons exhibit two patterns of action potential activity: low-frequency tonic activity that is intrinsically generated and superimposed high-frequency phasic bursts that are driven by synaptic inputs. acute striatal brain preparations are widely employed to study the regulation of evoked DA release but exhibit very different DA release kinetics than recordings.

View Article and Find Full Text PDF

Inflammation is a physiological response of the immune system to infectious agents or tissue injury, which involves a cascade of vascular and cellular events and the activation of biochemical pathways depending on the type of harmful agent and the stimulus generated. The Kunitz peptide HCIQ2c1 of sea anemone is a strong protease inhibitor and exhibits neuroprotective and analgesic activities. In this study, we investigated the anti-inflammatory potential of HCIQ2c1 in histamine- and lipopolysaccharide (LPS)-activated RAW 264.

View Article and Find Full Text PDF

The lily is a globally popular cut flower, and managing dormancy in lily bulblets is essential for continuous, year-round production. While nitric oxide (NO) has been shown to influence seed dormancy and germination, its role in dormancy release in lilies was previously unconfirmed. In this study, we investigated the effects of NO on dormancy release in lily bulblets using SNP and c-PTIO.

View Article and Find Full Text PDF

New Triterpenoids from the Leaves of and Their Anti-Inflammatory Activity.

Molecules

December 2024

Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 535000, China.

Six new triterpenoids, heritieras C-H (-), along with thirteen known triterpenoids (-), were isolated from the leaves of . Their structures were identified by spectroscopic analysis, including 1D and 2D nuclear magnetic resonance (NMR), high-resolution electrospray ionization mass spectrometry (HRESIMS), and by comparison with the literature. Anti-inflammatory activity of the isolates was evaluated using the lipopolysaccharide (LPS) stimulated RAW 264.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!