Intracellular pH (pHi) has an important role in the maintenance of normal cell function, and hence this parameter has to be tightly controlled within a narrow range, largely through the activity of transporters located at the plasma membrane. These transporters can be modulated by endogenous or exogenous molecules as well as, in some pathological situations, leading to pHi changes that have been implicated in both cell proliferation and cell death. Whereas intracellular alkalinization seems to be a common feature of proliferative processes, the precise role of pHi in apoptosis is still unclear. The present review gathers the most recent advances along with previous data on both the origin and the role of pHi alterations in apoptosis and highlights the major concerns that merit further research in the future. Special attention is given to the possible role played by pHi-regulating transporters.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/sj.cdd.4401466 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The mechanism of amyloid fibril growth from Φ-value analysis.
Nat Chem
January 2025
Department of Biotechnology and Biomedicine, Technical University of Denmark, Kgs. Lyngby, Denmark.
Amyloid fibrils are highly stable misfolded protein assemblies that play an important role in several neurodegenerative and systemic diseases. Although structural information of the amyloid state is now abundant, mechanistic details about the misfolding process remain elusive. Inspired by the Φ-value analysis of protein folding, we combined experiments and molecular simulations to resolve amino-acid contacts and determine the structure of the transition-state ensemble-the rate-limiting step-for fibril elongation of PI3K-SH3 amyloid fibrils.
View Article and Find Full Text PDFNde1 Promotes Lis1 Binding to Full-Length Autoinhibited Human Dynein-1.
bioRxiv
December 2024
Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, 06511, USA.
Cytoplasmic dynein-1 (dynein) is the primary motor for the retrograde transport of intracellular cargoes along microtubules. The activation of the dynein transport machinery requires the opening of its autoinhibited Phi conformation by Lis1 and Nde1/Ndel1, but the underlying mechanism remains unclear. Using biochemical reconstitution and cryo-electron microscopy, we show that Nde1 significantly enhances Lis1 binding to autoinhibited dynein and facilitates the opening of Phi.
View Article and Find Full Text PDFExplicit travelling wave solutions to the time fractional Phi-four equation and their applications in mathematical physics.
Sci Rep
January 2025
Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.
In applied research, fractional calculus plays an important role for comprehending a wide range of intricate physical phenomena. One of the Klein-Gordon model's peculiar case yields the Phi-four equation. Additionally, throughout the past few decades it has been utilized to explain the kink and anti-kink solitary waveform contacts that occur in biological systems and in the field of nuclear mechanics.
View Article and Find Full Text PDFPhysiological, Photosynthetic Characteristic and Transcriptome Analysis of Transgenic × Under Salt Stress.
Int J Mol Sci
December 2024
College of Forestry, Henan Agricultural University, Zhengzhou 450002, China.
The WRKY70 transcription factor (TF) was reported to play an important role in the salt stress response mechanism of in our previous research, and we also produced several overexpression (OEXs) and RNAi suppression (REXs) × lines. In order to further compare the photosynthetic and physiological characteristics of NT (non-transgenic line) and transgenic lines under salt stress, the dynamic phenotypic change, Na and K content in leaf and root tissues, superoxide dismutase (SOD) and peroxidase (POD) activity, malondialdehyde (MDA) content, chlorophyll content (Chl), photosynthesis parameters (net photosynthetic rate, P; stomatal conductance, Gs; intercellular CO concentration, C; transpiration rate, T), chlorophyll fluorescence parameters (electron transport rate, ETR; maximum photochemical efficiency of photosystem II (PSII), F/F; actual efficiency of PSII, Φ; photochemical quenching coefficient, q; non-photochemical quenching, NPQ; the photosynthetic light-response curves of Φ and ETR) and RNA-seq of NT, OEX and REX lines were detected and analyzed. The phenotypic observation, MDA content and Chl detection results indicate that the stress damage of REXs was less severe than that of NT and OEX lines under salt stress.
View Article and Find Full Text PDFPostCOVID-19 Impact on Perinatal Outcomes.
Diagnostics (Basel)
December 2024
City Rheumatology Center, Masanchi Street, 92, 050022 Almaty, Kazakhstan.
Severe Acute Respiratory Syndrome-Related Coronavirus 2 (SARS-CoV-2) infection during pregnancy was associated with a number of adverse pregnancy outcomes, including miscarriage, preeclampsia, preterm birth, and stillbirth. The virus persistence can last for a long time, and the consequences of a previous coronavirus infection are currently under study. This study aimed to establish the clinical features of the course of pregnancy and childbirth in women with a history of asymptomatic coronavirus disease 2019 (COVID-19).
View Article and Find Full Text PDFWant 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!