Tuesday, May 20, 2025
Session 1: PolyP and the Global Phosphorus Cycle
Moderators: Sidney Omelon (& to be named)
Time | Speaker | Institution | Topic |
12:00 | Check-in (for badges, etc.) opens at Kahn Auditorium |
1:45 | Opening remarks from the organizing committee |
2:00 – 2:40 | Thomas Kornberg | UCSF, USA | Keynote Address: “The First Family of Inorganic Polyphosphates” |
2:40 – 3:10 | Julia Diaz | UCSD, USA | “How Marine Polyphosphate Shapes Ocean Health and Fertility” |
3:10 – 3:40 | Ludmilla Aristilde | Northwestern University, USA | “Selectivity in Enzymatic Phosphorus Recycling with Fungal and Plant Phosphatases” |
3:40 | BREAK | | |
4:15 – 4:30 | Xingyu Yang | Hong Kong University of Science and Technology | Brief talk: “Unveiling the Role of Planktonic Polyphosphate in Aquatic Phosphorus Cycling with Novel Quantification” |
4:30 – 5:00 | Alison Baker | U. of Leeds, UK | “Polyphosphate Dynamics in Microalgae” |
5:00 – 5:30 | Lars Blank | RWT 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
Time | Speaker | Institution | Topic |
9:00 – 9:30 | Brigitte Van Zundert | Andrés Bello University, Chile | “Inorganic Polyphosphate: from Basic Research to Diagnostic and Therapeutic Opportunities in ALS/FTD” |
9:30 – 10:00 | Ursula Jakob | U. Michigan, USA | “Role of Polyphosphate in Phase Separation” |
10:00 – 10:30 | Toshikazu Shiba | Regenetiss, Japan | “Basic Properties of Size Fractionated PolyP (EX-polyP) and its applications” |
10:30 – 10:45 | Mayara Bertolini | University of Georgia | Brief talk: “Essential Roles of Vacuolar Transporter Chaperones 1 and 4 in Polyphosphate Metabolism and T. cruzi Infectivity” |
10:45 – 11:00 | Pavithra Mahadevan | University of Michigan | Brief talk: “Polyphosphates as Modulators of Tau Aggregation and Propagation in Alzheimer’s Disease” |
11:00 | BREAK | | |
11:30 – 12:00 | Markus Bosmann | Boston University, USA | “Bacterial Polyphosphates in Innate and Adaptive Immunity” |
12:00 – 12:30 | Zongchao Jia | Queen’s University, Canada | “Modification of Histidine- and Lysine-Repeat Proteins by Polyphosphate” |
12:30 – 1:00 | Lunch | | |
1:00 – 2:30 | Poster session 1 | | Odd-numbered posters will be presented in this session |
Session 3: PolyP in Hemostasis and Thrombosis
Moderators: Ursula Jakob & Sradha Bhatt
Time | Speaker | Institution | Topic |
2:30 – 2:45 | Renata Torres da Costa | Rutgers University | Brief talk: “Role of mitochondrial inorganic polyphosphate in mitophagy signaling and mitochondrial function in ischemic stroke” |
2:45-3:00 | Upendar Singh | Cleveland Clinic Cancer Institute | Brief talk: “Cell-endogenous tissue non-specific alkaline phosphatase activity facilitates polyphosphate-driven energy-intensive functions in platelets and cancer cells” |
3:00 – 3:30 | Andrea Ashford-Hicks & Damien Kudela | Cayuga Biotech, USA | “The potential of CAY001 (PolyP-SNP complex) to address life-threatening hemorrhage.” |
3:30 | BREAK | | |
4:00 – 4:30 | Jay Kizhakkedathu | U. of British Columbia, Canada | “Charge Switching Polycations as Polyphosphate Inhibitors” |
4:30 – 5:00 | Thomas Renné | University Medical Center Hamburg (UKE) | “Polyphosphate/Factor XII-Driven Coagulation Traps Bacterial Infection” |
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Thursday, May 22, 2025
Session 4: Roles for PolyP in Mitochondria, Organelles, and the Nucleus
Moderators: Marien Solesio & Giuliano Kullik
Time | Speaker | Institution | Topic |
9:00 – 9:30 | Evgeny Pavlov | New York University, USA | “Inorganic Polyphosphate and Mitochondrial Permeability Transition” |
9:30 – 10:00 | Marien Solesio | Rutgers University, USA | “Inorganic Polyphosphate, AMPK, and Mitochondrial Physiology” |
10:00 – 10:30 | Rashna Bhandari | Centre for DNA Fingerprinting and Diagnostics (CDFD), India | “Organellar Polyphosphate in Mammalian Cells” |
10:30 – 10:45 | Zhiyun Yang | Queen’s University | Brief talk: “Polyphosphate as a novel regulator of super-enhancer complexes: disruption of phase separation and gene expression” |
10:45 | BREAK | | |
11:30 – 12:00 | Josep Clotet | UIC Barcelona, Spain | “Polyphosphate: A Multitasker in Mammalian Cell Nuclei” |
12:00 – 12:30 | Felix Ruiz | University of Cádiz, Spain | “Inorganic polyphosphate levels are increased in the brain of diabetic mice” |
12:30 – 1:00 | Lunch | | |
1:00 – 2:30 | Poster session 2 | Even-numbered posters will be presented in this session |
Session 5: PolyP Properties and Analytical Methods
Moderators: Henning Jessen & Guizhen Liu
Time | Speaker | Institution | Topic |
2:30 – 3:00 | Christopher Cummins | MIT, USA | “Synthesis and Applications of Oligophosphate Constructs” |
3:00 – 3:30 | Jennifer Andexer | University of Freiburg, Germany | “Using Polyphosphate for Cofactor Regeneration and Synthesis” |
3:30 | BREAK | | |
4:00 – 4:15 | Sandra Moser | University of Freiburg | Brief talk: “A Screening Approach Unveils an Unknown Mn2+-dependent Endopolyphosphatase Activity in Yeast” |
4:15-4:30 | Sunayana Sarkar | Tata Institute of Fundamental Research | Brief talk: “Development of tools to study biological functions of polyphosphate using Drosophila” |
4:30 – 4:45 | Benita Kröger | UKE – Hamburg | Brief talk: “Intracellular polyP degradation by ectopic polyphosphatase expression regulates T-cell responses” |
4:45 – 5:00 | Julius Narh | Illinois State University | Brief 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
Time | Speaker | Institution | Topic |
9:00 – 9:30 | Dorothea Fiedler | Leibniz-FMP, Germany | “Pyrophosphorylation and Oligophosphorylation of Proteins” |
9:30 – 10:00 | Richard Gomer | Texas A&M University, USA | “Chemorepulsion from Extracellular Polyphosphate” |
10:00 – 10:30 | Michael Downey | University of Ottawa, Canada | “Systems Biology of Polyphosphate Metabolism” |
10:30 – 11:00 | Andreas Mayer | U. of Lausanne, Switzerland | “Strategies for PolyP and Phosphate Homeostasis from Yeast to Human Cells” |
11:00 | BREAK | | |
11:30 – 12:00 | Jan-Ulrik Dahl | Illinois State University | “The role of polyphosphate for the interaction between two major opportunistic pathogens” |
12:00-12:15 | Akash Rai | University of Michigan | Brief talk: “The role of polyphosphate in migration and metastasis” |
12:15 – 1:30 | Lunch | | |
Session 7: New Insights into Microbial PolyP
Michael Gray & Constanza Torres-Paris
Time | Speaker | Institution | Topic |
1:30-2:00 | Lisa Racki | Scripps Res. Institute, USA | “Polyphosphate Condensates and Chromatin in Pseudomonas aeruginosa” |
2:00-2:30 | Michael Gray | U. Alabama Birmingham, USA | “New Insights into Regulation of Polyphosphate Synthesis in Bacteria” |
2:30-3:00 | Hans-Georg Koch | University of Freiburg, Germany | “A Universally Conserved ATPase Controls Polyphosphate and Alarmone synthesis in E. coli” |
3:00-3:30 | BREAK | | |
3:30-4:00 | Gabriel Schaaf | University of Bonn, Germany | “Elucidating PolyP Synthesis in the Arbuscular Mycorrhizal Fungus Rhizophagus irregularis by a Synthetic Biology Approach” |
4:00 | Group discussion/planning for the next polyP conference |