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352 items found for "HyunGee Ha"

  • Emerging approaches for decoding neuropeptide transmission

    November 2022 "Neuropeptides produce robust effects on behavior across species, and recent research has These complex properties have driven the need for development of specialized tools that can sense neuropeptide Current research has focused on isolating when and how neuropeptide transmission occurs, as well as the

  • Molecular insights into psychedelic drug action

    August 2022 "A confluence of factors has renewed interest in the scientific understanding and translational designation of psilocybin as a "Breakthrough Therapy" for treatment-resistant depression, a new path has psychedelic drug actions and suggest that these discoveries can facilitate new insights into their hallucinogenic

  • Synthesis and characterization of an orally bioavailable small molecule agonist of the apelin recept

    Previously, we had identified a novel pyrazole-based agonist 1 ((S)-N-(1-(cyclobutylamino)-1-oxo-5-(piperidin This compound has vastly reduced brain penetration and is devoid of significant off-target liability. selective APJ agonist suitable for in vivo studies of APJ in peripheral tissues after oral administration has

  • GPCR Therapeutics welcomes Dr. Ed Brennan as their new Vice President, Head of Clinical Development

    Dr Brennan has extensive experience across all phases of clinical development, and across multiple therapeutic He has led teams that have filed more than 10 Investigational New Drug Applications (IND), as well as In 2016 the company was sold to Velocity fund partners and has been rebranded as InClinica .

  • Exploring pharmacological inhibition of G q/11 as an analgesic strategy

    August 2022 "Background and purpose: Misuse of opioids has greatly affected our society. Previous research showed that activation of Gq/11 proteins by G-protein coupled receptors has pro-nociceptive

  • Endosomal parathyroid hormone receptor signaling

    However, over the last decade, this model has been extended by discovering that some internalized GPCRs Accumulative evidence shows that the location of signaling has an impact on the physiological effects

  • Dynamic GPCR activation revealed through time-resolved Cryo-EM

    Capturing the dynamics of GPCR activation has always been a challenge because G protein activation in Papasergi-Scott and colleagues has made significant progress in this area 2.

  • The microglial endocannabinoid system similarly regulated by lipopolysaccharide and interferon gamma

    October 2022 "Perturbation of the endocannabinoid system can have profound effects on immune function Past work has produced conflicting results with respect to the effects of pro-inflammatory conditions stimuli influence the capacity of microglia to synthesize, degrade, and respond to cannabinoids which has

  • C3aR plays both sides in regulating resistance to bacterial infections

    Specifically, previous research has identified mechanistically distinct and cell type–specific roles Historically, the production of C3a has been relegated to the serum; however, recent studies have provided

  • Helix 8 in chemotactic receptors of the complement system

    An analysis of mutual interactions of subunits in the C5aR1-G protein complex has provided new insights comparison of microsecond MD trajectories started from active and inactive C5aR1 receptor conformations has

  • Dynamics of tumor-associated macrophages in a quantitative systems pharmacology model of...

    It has begun to play important roles in drug development for complex diseases such as cancer, including The combination of the anti-PD-L1 antibody atezolizumab and nab-paclitaxel has shown clinical activity

  • Therapeutic validation of an orphan G protein‐coupled receptor

    Historically, ligands for GPCRs have been identified before their receptor counterparts. GPR84 has been shown to be an attractive target in pro‐inflammatory conditions (Gagnon et al., 2018; GPR84 has been additionally proposed to be a potential biomarker in different inflammatory diseases ( Recent work has shown distinct functional outcomes of agonist ligands (Pillaiyar et al., 2018) with biased IM (3,3′‐methylenebis‐1H‐indole) has been identified as a positive allosteric modulator of GPR84, a metabolite

  • GPCRs are not simple on-off switches: deep dive into GPCR-ligand interactions

    In terms of pharmacology, GPCRs have been identified to exist in at least two distinct states: an active Over the past decade, there has been a notable growth in the discovery of allosteric modulators for GPCRs While this has the potential to enhance GPCR subtype-selectivity, it also presents a significant challenge Moreover, they have the potential to enhance target selectivity, which can arise from greater sequence GPCRs functional selectivity Recent research has revealed a more intricate understanding of GPCR behavior

  • Propranolol: A “Pick and Roll” Team Player in Benign Tumors and Cancer Therapies

    , such as antibodies, small chemicals, hormones, cytokines, and, recently, gene editing techniques, have been tested to reduce the malignancy and generate a harmful microenvironment for the tumor. Few therapeutic agents have shown benefits when administered alone, but a few more have demonstrated initially prescribed for high blood pressure, irregular heart rate, essential tremor, and anxiety, has Moreover, the use of propranolol in combination therapies with other drugs has shown synergistic antitumor

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  • Chemokine receptor-targeted drug discovery: progress and challenges

    of inflammatory, autoimmune and infectious diseases (Proudfoot 2002), and in recent years attention has Different reviews have extensively described the success and failure in drug discovery on chemokine receptors The anti-CCR4 antibody mogamulizumab has also been approved in Japan and by the FDA for the treatment A lot of effort has been put forward to target CKRs especially in cancer, nevertheless, targeting this On the other hand, Shall and Proudfoot excluded the idea of molecular redundancy, pointing out that,

  • Addex Raises $10 Million In Equity Financing

    company pioneering allosteric modulation-based drug discovery and development, today announced that it has Additionally, Addex has agreed to issue to Armistice Capital unregistered warrants to purchase up to The Unregistered Warrants have an exercise price of $6.50 per ADS, will become exercisable in 60 days The Unregistered Pre-Funded Warrants have been funded to the amount of $6.49 with $0.01 payable on exercise

  • A Setmelanotide-like Effect at MC4R Is Achieved by MC4R Dimer Separation

    Due to increasing numbers of people with excess body weight, the MC4R has become a target of interest We have previously reported that the MC4R forms homodimers, affecting receptor Gs signaling properties In summary, our study shows that inhibiting homodimerization has a setmelanotide-like effect on Gq/11

  • Effect Delta-9-tetrahydrocannabinol and cannabidiol on milk proteins and lipid levels in HC11 cells

    September 2022 "Pregnant and lactating women have been discouraged from using cannabis by Health Canada However, the increasing rate of cannabis use among pregnant women has presented an urgent need to investigate Limited evidence has been reported on the impact of cannabis or its components, delta-9-tetrahydrocannabinol

  • C5aR2 receptor: The genomic twin of the flamboyant C5aR1

    The functional relevance of C5aR2 appears to be context-dependent compared to the C5aR1, which has received The current study has attempted to close the gap by generating highly refined model structures of C5aR2

  • Unlocking the Therapeutic Potential of Previously Undruggable GPCRs

    However only ~15% of the GPCR superfamily has been successfully drugged, due in part to the intractability the understanding of structure and activation mechanisms of GPCRs, the biotech investment community has GPCRs, but discovery is challenging and the attrition rate during clinical development has been very Orion has demonstrated that optimized antagonist analogs generated using the PROcisionXᵀᴹ platform have In this way Orion has established itself as one of the leaders in the exciting new wave of GPCR drug

  • Adhesion GPCR Consortium Newsletter - May 2024

    Another chapter was being written for me and has been in full redaction since then. If I wanted to be part of the narrative, I felt that I had to join the community. And so I did. time in a LATAM country, the first organized by Afro-descendants (Yamina Berchiche, my co-organizer, has No wonder why Mexican cuisine has obtained the coveted status of UNESCO ́s Intangible Cultural Heritage I know I have.

  • Glyco-sulfo hotspots in the chemokine receptor system

    PolySia has been described for CCR7 where it specifically affects the recognition of CCL21 but not CCL19 This PTM has been shown to be heterogeneous [Li X et al. 2018; Scurci I et al. 2021) and to improve the CCR5 sulfation has been also reported to play a key role in CCL3 and CCL5 binding (Bannert N et al. 2001 For CCR5, it has been shown that N-terminal antibodies show different sulfo-sensitivities (Scurci I et It has been also reported that PSGL-1 glycosulfo peptide analogue GSnP-6 displays nanomolar affinity

  • 🎧Episode 85 of the Dr. GPCR podcast is here!

    Nicholas Holliday and how he has combined his university role with his leadership of Excellerate Bioscience

  • Addex raises $4.2 million in equity financing

    company pioneering allosteric modulation-based drug discovery and development, today announced that it has Additionally, Addex has agreed to issue to Armistice Capital unregistered pre-funded warrants to purchase The Unregistered Warrants have an exercise price of $1.90 per ADS, will become exercisable in 60 days

  • Applications of Cryo-EM in small molecule and biologics drug design

    In recent years, pharmaceutical companies have begun to utilize cryo-EM for structure-based drug design proportion of druggable targets and pose particular challenges for X-ray crystallography, by cryo-EM has Structural characterization of biologics, such as vaccines, viral vectors, and gene therapy agents, has As a result, cryo-EM has begun to make major impacts in bringing critical therapeutics to market.

  • Interacting binding insights and conformational consequences of the differential activity of...

    Cannabidiol (CBD), the major non-psychoactive phytocannabinoid present in the plant Cannabis sativa, has While in the former, CBD has been demonstrated to function as an antagonist, the way by which CBD modulates Namely, CBD has been suggested to directly trigger receptor’s activation, stabilize CB1 inactive conformations Our work will pave the way for understanding the CBD pharmacology at a molecular level and aid in harnessing

  • RGS7-ATF3-Tip60 Complex Promotes Hepatic Steatosis and Fibrosis by Directly Inducing TNFα

    2022 "Aims: The pathophysiological mechanism(s) underlying non-alcoholic fatty liver disease (NAFLD) have and only a single drug, peroxisome proliferator-activated receptor (PPAR) α/γ agonist saroglitazar, has

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