Interrogating Incretin Receptor Biology Across Biological Complexity
GLP-1 and GIP receptors have emerged as central targets in metabolic medicine, yet their precise localization, nanodomain organization, and functional engagement within complex biological systems remain incompletely understood. Fluorescent chemical probes offer one of the most direct approaches for investigating receptor distribution and dynamics in native contexts — without relying on receptor overexpression or genetic modification.
This webinar introduces two families of advanced fluorescent probes developed specifically for working with endogenous GLP-1R and GIPR across a range of biological complexity. Attendees will gain a technical understanding of probe design, selectivity, and validated applications — as well as practical guidance on handling, reconstitution, dilution, and storage to support immediate laboratory deployment.
LUXendin Family
Red and far-red fluorescent GLP-1R antagonists derived from Exendin4(9–39). Enable high-specificity labeling of endogenous GLP-1R in live and fixed cells, pancreatic islets, and whole-organ preparations — without triggering receptor activation. Available across multiple spectral ranges for confocal, super-resolution, and intravital imaging.
daLUXendin Family
Fluorescent dual agonists for both GLP-1R and GIPR (daLUXendin544+ and daLUXendin660+), structurally related to tirzepatide. Enable simultaneous visualization of endogenous receptor localization and nanodomain organization in pancreatic islet cells and neural sites of action in vivo.
Speaker Introductions
Dr. Johannes Broichhagen
Group Leader
Leibniz Research Institute for Molecular Pharmacology (FMP), Berlin
Dr. Broichhagen trained in chemistry at the University of Erlangen-Nuremberg, completed his doctorate at LMU Munich in 2014, and undertook postdoctoral work at EPFL (Switzerland) and the Max Planck Institute for Medical Research (Heidelberg). Since 2020, he leads an independent research group at the FMP Berlin.
His group focuses on the development of chemical tools — including fluorescent ligands and photopharmacological compounds — to investigate GPCR biology with spatial and temporal precision. He is a principal architect of the LUXendin and daLUXendin probe families.
Dr. David Hodson
Robert Turner Professor of Diabetic Medicine
Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford
Dr. Hodson is a veterinary surgeon by training who pursued postdoctoral studies at the CNRS in Montpellier before establishing his independent laboratory at Imperial College London as a Diabetes UK RD Lawrence Fellow. He previously served as Professor of Cellular Metabolism and Institute Deputy Director at the University of Birmingham.
His research group develops and applies novel technologies to investigate GLP-1 and GIP receptors — two class B GPCRs central to glucose homeostasis, food intake regulation, and inflammation — within complex tissue environments including the pancreas and brain. His work carries direct translational relevance to diabetes and obesity therapeutics.
About the Organizers
Celtarys Research
Celtarys develops and commercializes fluorescent chemical tools and related screening services that enable fluorescence-based methods across drug discovery. The company's portfolio is built around high-affinity, selective fluorescent ligands for GPCRs, supporting researchers working at the interface of chemical biology and pharmacology.
Broad GPCR fluorescent ligand portfolio across multiple receptor families
Fluorescence Polarization, HTRF, and High-Content Screening formats
Fluorescence microscopy and flow cytometry applications
Screening services using proprietary probes in living cells
Custom chemical development for probe and ligand creation
Dr. GPCR
Dr. GPCR is a membership-based nonprofit ecosystem dedicated to advancing GPCR-targeted drug discovery. It provides curated industry intelligence, expert-led masterclasses, and structured engagement opportunities for scientists and biotech leaders working across pharmacology, translational research, and therapeutic development.
Curated intelligence on GPCR drug discovery trends and developments
Expert-led webinars and masterclasses with leading researchers
Structured networking for scientists and biotech professionals
Nonprofit model — community-first, member-driven
Free membership tier available