Related Experiment Video

Updated: Jul 3, 2026

Evaluation of Synapse Density in Hippocampal Rodent Brain Slices
07:44

Evaluation of Synapse Density in Hippocampal Rodent Brain Slices

Published on: October 6, 2017

The role of Dickkopf-1 in bone development, homeostasis, and disease

Joseph J Pinzone1, Brett M Hall, Nanda K Thudi

  • 1Department of Internal Medicine, The Ohio State University, Columbus, USA. joseph.pinzone@osumc.edu

Blood
|August 9, 2008
PubMed

Insights

Dickkopf-1 (DKK1) is a key regulator of Wnt/beta-catenin signaling in bone development and disease. Neutralizing DKK1 may effectively treat various bone pathologies.

Area of Science:

  • Bone Biology
  • Signaling Pathways
  • Developmental Biology

Background:

  • Wnt/beta-catenin signaling is crucial for bone development and homeostasis.
  • Deregulation of this pathway is linked to bone pathologies.
  • Dickkopf-1 (DKK1) is a Wnt signaling inhibitor essential for embryonic development.

Purpose of the Study:

  • To review the literature on DKK1's role in bone health and disease.
  • To highlight DKK1's involvement in various bone pathologies.
  • To discuss potential therapeutic strategies targeting DKK1.

Main Methods:

  • Literature review of studies on DKK1 and bone biology.
  • Analysis of DKK1's function in embryonic development and adult homeostasis.
  • Examination of DKK1's role in bone diseases and potential treatments.

Main Results:

  • DKK1 regulates Wnt signaling by binding to LRP5.
  • DKK1 overexpression causes osteopenia, HSC niche disruption, and impaired fracture repair.
  • DKK1 is implicated in osteoporosis, sarcomas, arthritis, multiple myeloma, and metastatic cancers.

Conclusions:

  • DKK1 plays a pivotal role in bone health and disease.
  • Targeting DKK1 or enhancing Wnt/beta-catenin signaling shows therapeutic potential for bone pathologies.

More Related Videos

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model08:42

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Published on: July 3, 2020

Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis09:20

Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis

Published on: December 18, 2019

Related Concept Videos

Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Canonical Wnt Signaling Pathway02:54

Canonical Wnt Signaling Pathway

The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which results in tumor...
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Hedgehog Signaling Pathway02:33

Hedgehog Signaling Pathway

The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
Role Of Notch Signalling In Intestinal Stem Cell Renewal01:12

Role Of Notch Signalling In Intestinal Stem Cell Renewal

Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...