Related Experiment Video
Updated: Jul 10, 2026

12:24
Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
Published on: September 29, 2016
Calcimimetics and calcilytics--fooling the calcium receptor
Simon J Steddon1, John Cunningham
1Department of Renal Medicine and Transplantation, Bart's and The London NHS Trust, London, UK.
Lancet (London, England)
|June 28, 2005
Summary
Pharmacological manipulation of the calcium-sensing receptor (CaR) offers new treatments for hyperparathyroidism. Calcimimetics are licensed, while calcilytics may treat osteoporosis by affecting parathyroid hormone (PTH).
Area of Science:
- Endocrinology
- Pharmacology
- Bone Biology
Background:
- The calcium-sensing receptor (CaR) is a key regulator of mineral ion homeostasis.
- Pharmacological agents targeting the CaR are emerging for endocrine disorders.
- Calcimimetics and calcilytics represent novel therapeutic strategies.
Purpose of the Study:
- To review the current understanding and future directions of CaR-targeted therapies.
- To discuss the role of calcimimetics in managing hyperparathyroid states.
- To explore the potential of calcilytics in treating osteoporosis and other bone disorders.
Main Methods:
- Review of recent clinical studies and pharmacological research on CaR modulators.
- Analysis of the mechanisms of action for calcimimetics and calcilytics.
- Discussion of ongoing and future research in CaR pharmacology.
Main Results:
- Calcimimetics, such as cinacalcet, have demonstrated efficacy in reducing serum calcium and PTH in primary hyperparathyroidism.
- Further studies are needed to confirm long-term efficacy and explore applications in secondary hyperparathyroidism.
- Calcilytics hold potential for treating osteoporosis by modulating parathyroid hormone (PTH) effects on bone.
Conclusions:
- Pharmacological targeting of the CaR is a rapidly advancing field with significant clinical implications.
- CaR modulators offer promising therapeutic avenues for hyperparathyroidism and bone diseases.
- Continued research into CaR signaling and expression is crucial for developing new treatments.
Related Concept Videos
Nonconscious Mimicry
Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
Drug-Receptor Bonds
Drug-receptor bonds are formed through various chemical forces when drugs interact with target cells. Covalent bonds, strong and irreversible, are exemplified by DNA-alkylating anticancer agents that inhibit cell division. However, such irreversible drug binding lacks selectivity and can modify the DNA of the surrounding healthy cells. Covalent binding often contributes to tissue toxicity, as seen with chloroform and paracetamol metabolites binding to the liver, causing hepatotoxicity.
In...
In...
Adrenergic Agonists: Indirect-Acting Agents
Indirect-acting adrenergic agonists potentiate the effects of endogenous catecholamines through different mechanisms without directly binding to adrenoceptors.
One mechanism involves depleting stored catecholamines by displacing them from synaptic vesicles. These agents, known as "displacers," are transported into vesicles at the expense of noradrenaline. Examples include amphetamine and tyramine, which lack a catechol moiety, resulting in prolonged action, improved oral bioavailability, and...
One mechanism involves depleting stored catecholamines by displacing them from synaptic vesicles. These agents, known as "displacers," are transported into vesicles at the expense of noradrenaline. Examples include amphetamine and tyramine, which lack a catechol moiety, resulting in prolonged action, improved oral bioavailability, and...
Masking and Demasking Agents
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
Understanding Deception
Deception is a pervasive aspect of human communication. Empirical studies have shown that most individuals engage in some form of deceit on a daily basis, with approximately 20% of social exchanges involving deceptive elements. Lying follows a developmental trajectory, peaking during adolescence and declining with age, possibly due to the maturation of cognitive control and social accountability.Cognitive and Social Factors in Deception DetectionDespite its prevalence, accurately detecting...

