Transforming growth factor-beta in renal disease

M Bitzer1, R B Sterzel, E P Böttinger

  • 1Medizinische Klinik IV mit Poliklinik, Friedrich-Alexander Universität Erlangen-Nürnberg, Germany. Markus.Bitzer@rzmail.uni-erlangen.de

Insights

Transforming growth factor-beta (TGF-beta) is crucial in inflammatory and fibrotic diseases like renal fibrosis. This review explores recent advances in understanding TGF-beta signaling in kidney health and disease.

Area of Science:

  • Nephrology
  • Cell Biology
  • Molecular Biology

Background:

  • Transforming growth factor-beta (TGF-beta) is implicated in inflammatory and fibrotic diseases.
  • Renal fibrosis is a significant pathological condition involving TGF-beta.
  • Recent studies reveal complex in vivo regulation of TGF-beta pathways.

Purpose of the Study:

  • To review recent advancements in understanding the TGF-beta signaling system.
  • To elucidate the role of TGF-beta in renal physiology.
  • To explore the role of TGF-beta in renal pathophysiology.

Main Methods:

  • Literature review of recent animal and clinical studies.
  • Analysis of genetically engineered mouse models.
  • Synthesis of current knowledge on TGF-beta signaling pathways.

Main Results:

  • TGF-beta plays a critical role in the development of renal fibrosis.
  • Complex regulatory mechanisms of TGF-beta activity in vivo have been identified.
  • Advances in understanding TGF-beta's function in kidney disease are emerging.

Conclusions:

  • TGF-beta signaling is a key target for therapeutic interventions in renal fibrosis.
  • Further research into TGF-beta regulation is essential for treating kidney diseases.
  • Understanding TGF-beta pathways is vital for both renal physiology and pathophysiology.

Related Concept Videos

TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
Glomerular Filtration Rate and its Regulation01:28

Glomerular Filtration Rate and its Regulation

The Glomerular Filtration Rate (GFR) is a measure of kidney function, reflecting the volume of filtrate formed per minute in the kidneys. On average, GFR is approximately 125 mL/min in males and 105 mL/min in females. Maintaining a relatively constant GFR is essential for the kidneys to effectively regulate body fluid homeostasis and maintain extracellular stability.
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate01:25

Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate

The glomerular filtration rate (GFR) is a critical indicator of kidney health, reflecting how well the kidneys filter blood. Changes in GFR can signal potential kidney impairment, necessitating accurate measurement methods to monitor kidney function effectively.Various molecules can serve as markers for GFR measurement, with the ideal marker meeting several specific criteria. It must freely filter at the glomerulus, avoid reabsorption or secretion by the renal tubules, remain unmetabolized, not...
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area. This equation is...
Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
Thrombopoietin (TPO), mainly released by the liver,...