Sabrina N. Rahman

ORCID: 0000-0003-2131-866X
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About
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Research Areas
  • Receptor Mechanisms and Signaling
  • Mast cells and histamine
  • Erythrocyte Function and Pathophysiology
  • Cellular transport and secretion
  • Ion channel regulation and function
  • Mass Spectrometry Techniques and Applications
  • Fibroblast Growth Factor Research
  • Adenosine and Purinergic Signaling
  • Neuropeptides and Animal Physiology
  • Biochemical Analysis and Sensing Techniques
  • Nitric Oxide and Endothelin Effects
  • Protein Kinase Regulation and GTPase Signaling
  • Neuroscience and Neuropharmacology Research
  • Coagulation, Bradykinin, Polyphosphates, and Angioedema
  • Monoclonal and Polyclonal Antibodies Research
  • Regulation of Appetite and Obesity
  • Chemical Synthesis and Analysis
  • Asthma and respiratory diseases
  • Advanced Biosensing Techniques and Applications
  • Protein Structure and Dynamics
  • Parathyroid Disorders and Treatments

University of Copenhagen
2021-2024

Vrije Universiteit Amsterdam
2016-2023

Monash University
2023

The human histamine H3 receptor (hH3R) is predominantly expressed in the CNS, where it regulates synthesis and release of other neurotransmitters. Due to its neuromodulatory role, hH3R has been associated with various CNS disorders, including Alzheimer's Parkinson's disease. Markedly, gene undergoes extensive splicing, resulting 20 isoforms, which 7TM isoforms exhibit variations intracellular loop 3 (IL3) and/or C-terminal tail. Particularly, that display IL3 (e.g., hH3R-365) are shown...

10.1021/acschemneuro.2c00425 article EN ACS Chemical Neuroscience 2023-01-26

Abstract The calcium-sensing receptor (CaSR) is responsible for sustaining a stable blood calcium concentration. Consequently, genetic and acquired changes in this G protein-coupled can give rise to various homeostasis disorders. Synthetic positive allosteric modulators targeting CaSR are currently used treat hypercalcemia, but their usage highly limited due the high risk of severe hypocalcemia gastrointestinal intolerance. In study, we aimed generate pharmacologically active CaSR-specific...

10.1101/2024.07.08.602375 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2024-07-08

Abstract Context The human calcium-sensing receptor (CaSR) plays a key role in calcium homeostasis, and most identified CASR variants are associated with hypercalcemic hypocalcemic disorders. Objective Here we characterized the pharmacological implications of 5 heterozygous from individuals familial hypocalciuric hypercalcemia 1 (FHH1: Y63C, I81T, Q459R, W818stop) or autosomal dominant hypocalcemia (ADH1: R955stop). Methods Total cell surface expression levels wild-type (WT) variant CaSRs...

10.1210/clinem/dgae735 article EN publisher-specific-oa The Journal of Clinical Endocrinology & Metabolism 2024-10-16

The calcium-sensing receptor (CaSR) plays a key role in calcium homeostasis, and small-molecule peptide positive allosteric modulators (PAMs) of CaSR, so-called calcimimetics, are used the treatment hyperparathyroidism hypocalcemic disorders. In this study, four monovalent nanobodies - representing distinct nanobody families with CaSR PAM activity were subjected to elaborate pharmacological profiling at receptor. While Nb5 displayed negligible all assays, Nb4, Nb10 Nb45 potently potentiated Ca

10.1016/j.bcp.2024.116619 article EN cc-by Biochemical Pharmacology 2024-11-09

The histamine H3 receptor (H3R) is a neurotransmitter that primarily found in the brain, where it controls release and synthesis of histamine, as well other neurotransmitters (e.g. dopamine, serotonin). Notably, 20 H3R isoforms are differentially expressed human brain consequence alternative gene splicing. hH3R-445, -415, -365 -329 contain prototypical GPCR (7TM) structure, yet exhibit deletions third intracellular loop, structural domain pivotal for G protein-coupling, signaling regulation....

10.2139/ssrn.4607872 preprint EN 2023-01-01

Real-time label-free techniques are used to profile G protein-coupled receptor (GPCR) signaling pathways in living cells. However, interpreting the signal responses is challenging, and previously reported methods do not reliably separate from each other. In this study, a continuous angular-scanning surface plasmon resonance (SPR) technique utilized for measuring GPCR profiles. We show how ability, up nine real-time parameters simultaneously, results more information-rich profiles different...

10.1021/acs.analchem.0c02652 article EN Analytical Chemistry 2020-10-15
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