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Bicarbonate transporters are responsible for the appropriate flux of bicarbonate across the plasma membrane to perform various fundamental cellular functions. The functions of bicarbonate transporters, including pH regulation, cell migration, and inflammation, are highlighted in various cellular systems, encompassing their participation in both physiological and pathological processes. In this review, we focused on recently identified modulatory signaling components that regulate the expression and activity of bicarbonate transporters. Moreover, we addressed recent advances in our understanding of cooperative systems of bicarbonate transporters and channelopathies. This current review aims to provide a new, in-depth understanding of numerous human diseases associated with the dysfunction of bicarbonate transporters.
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http://dx.doi.org/10.3390/pharmaceutics16010078 | DOI Listing |
ACS Appl Mater Interfaces
September 2025
The Steve Sanghi College of Engineering, Mechanical Engineering, Northern Arizona University, Flagstaff, Arizona 86011, United States.
This study investigates the HO and CO sorption behavior of two chemically distinct polystyrene-divinylbenzene-based ion exchange sorbents: a primary amine and a permanently charged strong base quaternary ammonium (QA) group with (bi)carbonate counter anions. We compare their distinct interactions with HO and CO through simultaneous thermal gravimetric, calorimetric, gas analysis, and molecular modeling approaches to evaluate their performance for dilute CO separations like direct air capture. Thermal and hybrid (heat + low-temperature hydration) desorption experiments demonstrate that the QA-based sorbent binds both water and CO more strongly than the amine counterparts but undergoes degradation at moderate temperatures, limiting its compatibility with thermal swing regeneration.
View Article and Find Full Text PDFDiabetes Obes Metab
September 2025
Department of Applied Health Sciences, University of Birmingham, Birmingham, UK.
Aim: Sodium-glucose co-transporter-2 inhibitors (SGLT2i) offer significant cardiorenal benefits for people with type 2 diabetes (PwT2D). However, concerns remain regarding their association with diabetes-related ketoacidosis (DKA). (1) To compare demographics, precipitating factors, biochemical features, management, and outcomes of acute DKA admissions between SGLT2i users (n = 267) and non-users (n = 793) with T2D.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078.
Cyanobacteria achieve highly efficient photosynthesis using a CO-concentrating mechanism relying on specialized Type I (NDH-1) complexes. Among these, NDH-1 and NDH-1 catalyze redox-coupled hydration of CO to bicarbonate, supporting carbon fixation in carboxysomes. The mechanism of coupling electron transfer to CO-hydration by these variant NDH-1 complexes remains unknown.
View Article and Find Full Text PDFISME J
September 2025
Department of Ecology, Environment and Plant Sciences, Stockholm University, Svante Arrhenius väg 20A, SE-106 91 Stockholm, Sweden.
Symbioses between diatoms and the N2-fixing, heterocyst-forming cyanobacterium Richelia spp. are widespread and contribute to primary production. Unique to these symbioses is a variation in the symbiont location: one lives in the host cytoplasm (endobiont) vs.
View Article and Find Full Text PDFCommun Biol
August 2025
Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science & Technology, Huazhong University of Science & Technology, Wuhan, China.
The solute carriers (SLC) superfamily comprises 66 families with more than 450 members. The Na/ cotransporter NBCe1 (SLC4A4) of SLC4 family plays critical roles in intracellular pH regulation and transepithelial transport of fluid and electrolytes. Here, we explored the structural mechanisms of NBCe1-A regulation by two phosphorylation modules: P-loop in the amino-terminal domain and H-loop in the transmembrane domain.
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