Renal Toll-like receptors: recent advances and implications for disease

Tarek M El-Achkar1, Pierre C Dagher

  • 1Division of Nephrology, Department of Medicine, Indiana University, IN 46202, USA.

Insights

Toll-like receptors (TLRs) are key immune proteins. Research shows renal TLRs influence kidney health and disease by interacting with various ligands, impacting function.

Area of Science:

  • Immunology
  • Nephrology

Background:

  • Toll-like receptors (TLRs) are pattern recognition receptors crucial for innate immunity.
  • TLRs are expressed not only on immune cells but also in various organs, including the kidneys.
  • The specific roles of renal TLRs in kidney physiology and pathology are under active investigation.

Purpose of the Study:

  • To provide an overview of the current knowledge regarding Toll-like receptors in the kidneys.
  • To discuss the potential implications of renal TLRs in kidney health and disease.

Main Methods:

  • Literature review and synthesis of existing research on renal TLRs.
  • Analysis of studies investigating TLR expression and function in kidney tissues.

Main Results:

  • Renal TLRs can recognize both exogenous pathogen-associated molecular patterns and endogenous ligands.
  • Activation of renal TLRs triggers signaling cascades leading to cytokine production and immune responses.
  • Evidence suggests renal TLRs play a role in various kidney diseases.

Conclusions:

  • Renal TLRs are significant players in kidney function and disease pathogenesis.
  • Further research into renal TLRs holds potential for novel therapeutic strategies in nephrology.
  • Understanding renal TLRs can inform future clinical practice for kidney disorders.

Related Concept Videos

Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Signal Transduction: Overview01:26

Signal Transduction: Overview

Cells respond to many types of information, often through receptor proteins positioned on the membrane. They respond to chemical signals, such as hormones, neurotransmitters, and other signaling molecules, initiating a series of molecular reactions to produce an appropriate response. This is called signal transduction. Cells also coordinate different responses elicited by the same signaling molecule via mediators, allowing molecular cross-talk.
Typically, signal transduction involves three...
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...