Investigating ion channels in their native cell type is important when striving to understand their regulation and function, but this comes with added complexities due to the plethora of channels and receptors present. Details of recording ATP-gated ion channels in macrophages are presented together with information on how to prepare the primary cells for electrophysiological analysis.

Download full-text PDF

Source
http://dx.doi.org/10.1007/978-1-4939-9717-6_20DOI Listing

Publication Analysis

Top Keywords

ion channels
8
recording p2x
4
p2x receptors
4
receptors whole-cell
4
whole-cell patch
4
patch clamp
4
clamp native
4
native monocytes
4
monocytes macrophages
4
macrophages investigating
4

Similar Publications

In a previous report, we showed that voltage-gated K+ (Kv) Kv1 and Kv2 channels are involved in cAMP-induced neuritogenesis of mouse neuronal N2A cells. In this report, we examined the effects of tannic acid (TA) on Kv channels and neuritogenesis in N2A cells. TA (15 μM) mildly enhanced Kv currents at -30 to -20 mV but strongly inhibited Kv currents at higher voltages, causing a preferential activation of currents at low voltages.

View Article and Find Full Text PDF

Gain-of-function variants in the voltage-gated sodium channel Nav1.7, encoded by the SCN9A gene, have previously been identified in patients with erythromelalgia, a clinical diagnosis defined by intermittent attacks of painful, hot, swollen, and red skin, predominantly involving the hands and feet. Symptoms are induced or aggravated by warming and relieved by cooling.

View Article and Find Full Text PDF

Resolution of inflammation is essential for normal tissue healing and regeneration, with macrophages playing a key role in regulating this process through phenotypic changes from a pro-inflammatory to an anti-inflammatory state. Pharmacological and mechanical (mechanotherapy) techniques can be employed to polarize macrophages toward an anti-inflammatory phenotype, thereby diminishing inflammation. One clinically relevant pharmacological approach is the inhibition of Transient Receptor Potential Vanilloid 4 (TRPV4).

View Article and Find Full Text PDF

Molecular Mechanisms of Nicergoline from Ergot Fungus in Blocking Human 5-HT3A Receptor.

J Microbiol Biotechnol

November 2024

Department of Biotechnology and Department of Integrative Food, Bioscience and Biotechnology (BK21 FOUR), Chonnam National University, Gwangju 61186, Republic of Korea.

This study investigates the modulatory effects of nicergoline, a major bioactive compound derived from ergot fungus, on the 5-hydroxytryptamine 3A (5-HT3A) receptor. Utilizing a two-electrode voltage-clamp technique, we evaluated the impact of nicergoline on the 5-HT-induced inward current (I) in 5-HT3A receptors. Our findings reveal that nicergoline inhibits I in a reversible and concentration-dependent manner.

View Article and Find Full Text PDF

Deregulated ion channels contribute to RHOBTB2-associated developmental and epileptic encephalopathy.

Hum Mol Genet

January 2025

Department of Human Genetics, Inselspital Bern, University of Bern, Freiburgstrasse 15, Bern 3010, Switzerland.

While de novo missense variants in the BTB domains of atypical RhoGTPase RHOBTB2 cause a severe developmental and epileptic encephalopathy, de novo missense variants in the GTPase domain or bi-allelic truncating variants are associated with more variable neurodevelopmental and seizure phenotypes. Apart from the observation of RHOBTB2 abundance resulting from BTB-domain variants and increased seizure susceptibility in Drosophila overexpressing RhoBTB, our knowledge on RHOBTB2-related pathomechanisms is limited. We now found enrichment for ion channels among the differentially expressed genes from RNA-Seq on fly heads overexpressing RhoBTB.

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!