Tuesday, May 20, 2025

Session 1: PolyP and the Global Phosphorus Cycle

Moderators: Sidney Omelon (& to be named)
TimeSpeakerInstitutionTopic
12:00Check-in (for badges, etc.) opens at Kahn Auditorium
1:45Opening remarks from the organizing committee
2:00 – 2:40Thomas KornbergUCSF, USAKeynote Address: “The First Family of Inorganic Polyphosphates”
2:40 – 3:10Julia DiazUCSD, USA“How Marine Polyphosphate Shapes Ocean Health and Fertility”
3:10 – 3:40Ludmilla AristildeNorthwestern University, USA“Selectivity in Enzymatic Phosphorus Recycling with Fungal and Plant Phosphatases”
3:40BREAK
4:15 – 4:30Xingyu YangHong Kong University of Science and TechnologyBrief talk: “Unveiling the Role of Planktonic Polyphosphate in Aquatic Phosphorus Cycling with Novel Quantification”
4:30 – 5:00Alison BakerU. of Leeds, UK“Polyphosphate Dynamics in Microalgae”
5:00 – 5:30Lars BlankRWT Aachen, Germany“Contributing to a Sustainable P Future by PolyP Hyperaccumulation”

Wednesday, May 21, 2025

Session 2: PolyP in Health and Disease

Moderators: Stephanie Smith & Blanca Lázaro
TimeSpeakerInstitutionTopic
9:00 – 9:30Brigitte Van ZundertAndrés Bello University, Chile“Inorganic Polyphosphate: from Basic Research to Diagnostic and Therapeutic Opportunities in ALS/FTD”
9:30 – 10:00Ursula JakobU. Michigan, USA“Role of Polyphosphate in Phase Separation”
10:00 – 10:30Toshikazu ShibaRegenetiss, Japan“Basic Properties of Size Fractionated PolyP (EX-polyP) and its applications”
10:30 – 10:45Mayara BertoliniUniversity of GeorgiaBrief talk: “Essential Roles of Vacuolar Transporter Chaperones 1 and 4 in Polyphosphate Metabolism and T. cruzi Infectivity”
10:45 – 11:00Pavithra MahadevanUniversity of MichiganBrief talk: “Polyphosphates as Modulators of Tau Aggregation and Propagation in Alzheimer’s Disease”
11:00BREAK
11:30 – 12:00Markus BosmannBoston University, USA“Bacterial Polyphosphates in Innate and Adaptive Immunity”
12:00 – 12:30Zongchao JiaQueen’s University, Canada“Modification of Histidine- and Lysine-Repeat Proteins by Polyphosphate”
12:30 – 1:00Lunch
1:00 – 2:30Poster session 1Odd-numbered posters will be presented in this session

Session 3: PolyP in Hemostasis and Thrombosis

Moderators: Ursula Jakob & Sradha Bhatt
TimeSpeakerInstitutionTopic
2:30 – 2:45Renata Torres da CostaRutgers UniversityBrief talk: “Role of mitochondrial inorganic polyphosphate in mitophagy signaling and mitochondrial function in ischemic stroke”
2:45-3:00Upendar SinghCleveland Clinic Cancer InstituteBrief talk: “Cell-endogenous tissue non-specific alkaline phosphatase activity facilitates polyphosphate-driven energy-intensive functions in platelets and cancer cells”
3:00 – 3:30Andrea Ashford-Hicks & Damien KudelaCayuga Biotech, USA“The potential of CAY001 (PolyP-SNP complex) to address life-threatening hemorrhage.”
3:30BREAK
4:00 – 4:30Jay KizhakkedathuU. of British Columbia, Canada“Charge Switching Polycations as Polyphosphate Inhibitors”
4:30 – 5:00Thomas RennéUniversity Medical Center Hamburg (UKE)“Polyphosphate/Factor XII-Driven Coagulation Traps Bacterial Infection”

Thursday, May 22, 2025

Session 4: Roles for PolyP in Mitochondria, Organelles, and the Nucleus

Moderators: Marien Solesio & Giuliano Kullik
TimeSpeakerInstitutionTopic
9:00 – 9:30Evgeny PavlovNew York University, USA“Inorganic Polyphosphate and Mitochondrial Permeability Transition”
9:30 – 10:00Marien SolesioRutgers University, USA“Inorganic Polyphosphate, AMPK, and Mitochondrial Physiology”
10:00 – 10:30Rashna BhandariCentre for DNA Fingerprinting and Diagnostics (CDFD), India“Organellar Polyphosphate in Mammalian Cells”
10:30 – 10:45Zhiyun YangQueen’s UniversityBrief talk: “Polyphosphate as a novel regulator of super-enhancer complexes: disruption of phase separation and gene expression”
10:45BREAK
11:30 – 12:00Josep ClotetUIC Barcelona, Spain“Polyphosphate: A Multitasker in Mammalian Cell Nuclei”
12:00 – 12:30Felix RuizUniversity of Cádiz, Spain“Inorganic polyphosphate levels are increased in the brain of diabetic mice”
12:30 – 1:00Lunch
1:00 – 2:30Poster session 2Even-numbered posters will be presented in this session

Session 5: PolyP Properties and Analytical Methods

Moderators: Henning Jessen & Guizhen Liu
TimeSpeakerInstitutionTopic
2:30 – 3:00Christopher CumminsMIT, USA“Synthesis and Applications of Oligophosphate Constructs”
3:00 – 3:30Jennifer AndexerUniversity of Freiburg, Germany“Using Polyphosphate for Cofactor Regeneration and Synthesis”
3:30BREAK
4:00 – 4:15Sandra MoserUniversity of FreiburgBrief talk: “A Screening Approach Unveils an Unknown Mn2+-dependent Endopolyphosphatase Activity in Yeast”
4:15-4:30Sunayana SarkarTata Institute of Fundamental ResearchBrief talk: “Development of tools to study biological functions of polyphosphate using Drosophila”
4:30 – 4:45Benita KrögerUKE – HamburgBrief talk: “Intracellular polyP degradation by ectopic polyphosphatase expression regulates T-cell responses”
4:45 – 5:00Julius NarhIllinois State UniversityBrief talk: “Investigating the protective role of polyphosphate during antibiotic-induced membrane stress”

Thursday Evening — Dinner at 6:00 pm for workshop participants who purchased a ticket (Location: Venue by 4M, Ann Arbor)

Friday, May 23, 2025

Session 6: PolyP Metabolism and Signaling

Moderators: Jim Morrissey & Chris Hamm
TimeSpeakerInstitutionTopic
9:00 – 9:30Dorothea FiedlerLeibniz-FMP, Germany“Pyrophosphorylation and Oligophosphorylation of Proteins”
9:30 – 10:00Richard GomerTexas A&M University, USA“Chemorepulsion from Extracellular Polyphosphate”
10:00 – 10:30Michael DowneyUniversity of Ottawa, Canada“Systems Biology of Polyphosphate Metabolism”
10:30 – 11:00Andreas MayerU. of Lausanne, Switzerland“Strategies for PolyP and Phosphate Homeostasis from Yeast to Human Cells”
11:00BREAK
11:30 – 12:00Jan-Ulrik DahlIllinois State University“The role of polyphosphate for the interaction between two major opportunistic pathogens”
12:00-12:15Akash RaiUniversity of MichiganBrief talk: “The role of polyphosphate in migration and metastasis”
12:15 – 1:30Lunch

Session 7: New Insights into Microbial PolyP

Michael Gray & Constanza Torres-Paris
TimeSpeakerInstitutionTopic
1:30-2:00Lisa RackiScripps Res. Institute, USA“Polyphosphate Condensates and Chromatin in Pseudomonas aeruginosa”
2:00-2:30Michael GrayU. Alabama Birmingham, USA“New Insights into Regulation of Polyphosphate Synthesis in Bacteria”
2:30-3:00Hans-Georg KochUniversity of Freiburg, Germany“A Universally Conserved ATPase Controls Polyphosphate and Alarmone synthesis in E. coli”
3:00-3:30BREAK
3:30-4:00Gabriel SchaafUniversity of Bonn, Germany“Elucidating PolyP Synthesis in the Arbuscular Mycorrhizal Fungus Rhizophagus irregularis by a Synthetic Biology Approach”
4:00Group discussion/planning for the next polyP conference