Bone–Kidney Axis

FGF23 Regulation & Spatial Systems Biology

About the Project

Elevated levels of the bone-derived hormone FGF23 are a hallmark of both inherited phosphate-wasting disorders such as XLH and chronic kidney disease (CKD), where they predict disease progression and mortality.

This project investigates the mechanisms driving increased FGF23 secretion in bone and its maladaptive signaling in the diseased kidney. Using Hyp and CKD mouse models, we combine spatial multi-omics technologies with computational systems medicine.

The results will provide new insights into FGF23 biology and may contribute to improved therapeutic strategies for XLH and CKD patients.

Latest News

We are currently hiring

Reinhold Erben’s Lab

PhD Position in Bone and Mineral Research

3-year PhD at the Ludwig Boltzmann Institute of Osteology.

Location: Vienna

Start: October 2026

Deadline: August 10, 2026

Apply: Click anywhere on this card to apply ↗

Focus on investigating the bone–kidney axis by combining transgenic mouse models with in vitro cell and tissue culture approaches to understand the regulation of FGF23 secretion in bone and its role in renal disease.

Principal Investigators

Reinhold G. Erben

Ludwig Boltzmann Institute of Osteology

Axel K. Walch

Helmholtz Munich

Jan Baumbach

University of Hamburg

Integrated Expertise

FGF23 Biology

Reinhold Erben

Spatial Metabolomics

Axel Walch

Computational Systems Biomedicine

Jan Baumbach

Collaborators

Moosa Mohammadi

Wenzhou Medical University

Robert A. Fenton

Aarhus University

FWF DFG

Grant IDs

FWF: 10.55776/PIN3788925 ↗

DFG:565905120