Page last updated: 2024-12-11

19-hydroxycholesterol

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Description

## 19-Hydroxycholesterol: A Key Player in Cholesterol Metabolism and Beyond

19-Hydroxycholesterol (19-OHC) is a cholesterol derivative that plays a crucial role in various biological processes, making it an important target for research. Here's a breakdown:

**What is 19-Hydroxycholesterol?**

* **Structure:** 19-OHC is a sterol molecule, meaning it is a type of lipid derived from cholesterol. It differs from cholesterol by the presence of an hydroxyl group (OH) attached to the 19th carbon atom.
* **Production:** 19-OHC is synthesized from cholesterol primarily by the enzyme **CYP46A1**, mainly in the brain.
* **Functions:** 19-OHC acts as a **lipid mediator** and exhibits diverse biological activities:

**Why is 19-Hydroxycholesterol Important for Research?**

1. **Cholesterol Metabolism and Brain Function:**
* 19-OHC is a major product of cholesterol catabolism in the brain, contributing to cholesterol homeostasis.
* It serves as a substrate for the enzyme **CYP27A1**, which further metabolizes it into 24-hydroxycholesterol, a key molecule for cholesterol excretion from the brain.
* Dysregulation of 19-OHC levels has been linked to neurological disorders like Alzheimer's disease.

2. **Immune Modulation:**
* 19-OHC acts as an **immunomodulator**, affecting immune cell function and inflammation.
* It inhibits the activity of **toll-like receptor 4 (TLR4)**, a key receptor involved in inflammation and immune responses.
* Its role in controlling inflammation and immune responses is being investigated in conditions like autoimmune disorders.

3. **Anti-Cancer Activity:**
* 19-OHC has shown potential anti-cancer activity in various studies.
* It inhibits the growth of **cancer cells** by inducing apoptosis (programmed cell death) and by interfering with cell signaling pathways.
* Research is ongoing to explore its potential as a therapeutic agent for cancer treatment.

4. **Cardiovascular Health:**
* 19-OHC exhibits both beneficial and detrimental effects on cardiovascular health.
* It can **reduce LDL cholesterol** levels, potentially lowering the risk of heart disease.
* However, high levels of 19-OHC have been linked to **atherosclerosis**, a condition that can lead to heart attacks and strokes.

**Ongoing Research:**

* **Therapeutic Potential:** Researchers are investigating 19-OHC as a potential drug target for various diseases, including Alzheimer's disease, autoimmune disorders, and cancer.
* **Mechanism of Action:** Further research is needed to fully elucidate the complex mechanisms by which 19-OHC exerts its diverse biological effects.
* **Diagnostic Value:** Its levels in blood and cerebrospinal fluid could be used as biomarkers for various conditions like Alzheimer's disease and cardiovascular diseases.

**In conclusion**, 19-hydroxycholesterol is a fascinating molecule with diverse biological activities that are being actively investigated for their potential impact on human health. Further research is crucial to fully understand its role and develop novel therapeutic strategies based on its unique properties.

19-hydroxycholesterol: structure given in first source [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID6453303
CHEMBL ID1908008
CHEBI ID166800
SCHEMBL ID335858
MeSH IDM0268503

Synonyms (19)

Synonym
(3s,8s,9s,10s,13r,14s,17r)-10-(hydroxymethyl)-13-methyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1h-cyclopenta[a]phenanthren-3-ol
561-63-7
CHEBI:166800
19-hydroxycholesterol
19-hydroxy cholesterol
cholest-5-en-3beta,19-diol
LMST01010274
cholest-5-ene-3,19-diol, (3beta)-
CHEMBL1908008
SCHEMBL335858
cholest-5-en-3.beta.,19-diol
cholest-5-ene-3,19-diol, (3.beta.)-
YRWIUNJQYGATHV-FTLVODPJSA-N
cholest-5-ene-3,19-diol #
cholest-5-ene-3.beta.,19-diol
5-cholesten-3beta,19-diol
AKOS027378847
cholest-5-ene-3,19-diol
DTXSID40971482
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Drug Classes (1)

ClassDescription
cholestanoidAny steroid based on a cholestane skeleton and its derivatives.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Bioassays (6)

Assay IDTitleYearJournalArticle
AID768319Binding affinity to human GFP-tagged NPC1L1 L1072T/L1168I mutant expressed in HEK293 cells assessed as protein stabilization after 24 hrs by fluorescence assay2013Bioorganic & medicinal chemistry, Sep-01, Volume: 21, Issue:17
Structure-activity relationship studies of Niemann-Pick type C1-like 1 (NPC1L1) ligands identified by screening assay monitoring pharmacological chaperone effect.
AID1179741Binding affinity to FLAG/tGFP-tagged NPC1 I1061T mutant (unknown origin) expressed in HEK293 cells assessed as localization at 10 uM after 24 hrs by fluorescence microscopy2014Bioorganic & medicinal chemistry letters, Aug-01, Volume: 24, Issue:15
Structure-activity relationships of oxysterol-derived pharmacological chaperones for Niemann-Pick type C1 protein.
AID1656771Inhibition of SREBP (unknown origin) expressed in HEK293 cells assessed as reduction in LDLr promotor activity after 24 hrs by luciferase reporter assay2020Bioorganic & medicinal chemistry, 02-01, Volume: 28, Issue:3
Luciferase-based HMG-CoA reductase degradation assay for activity and selectivity profiling of oxy(lano)sterols.
AID624619Specific activity of expressed human recombinant UGT2B72000Annual review of pharmacology and toxicology, , Volume: 40Human UDP-glucuronosyltransferases: metabolism, expression, and disease.
AID768317Binding affinity to human GFP-tagged NPC1L1 L1072T/L1168I mutant expressed in HEK293 cells assessed as localization to endoplasmic reticulum and plasma membrane at 10 uM after 24 hrs by fluorescence microscopic analysis2013Bioorganic & medicinal chemistry, Sep-01, Volume: 21, Issue:17
Structure-activity relationship studies of Niemann-Pick type C1-like 1 (NPC1L1) ligands identified by screening assay monitoring pharmacological chaperone effect.
AID1656767Induction of human HMGCR-dCat-ELuc degradation expressed in HEK293 cells assessed as reduction in luciferase activity after 4 hrs by luciferase reporter assay2020Bioorganic & medicinal chemistry, 02-01, Volume: 28, Issue:3
Luciferase-based HMG-CoA reductase degradation assay for activity and selectivity profiling of oxy(lano)sterols.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (6)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's2 (33.33)18.2507
2000's1 (16.67)29.6817
2010's2 (33.33)24.3611
2020's1 (16.67)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 17.56

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be moderate demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index17.56 (24.57)
Research Supply Index1.95 (2.92)
Research Growth Index4.32 (4.65)
Search Engine Demand Index10.37 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (17.56)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews1 (16.67%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other5 (83.33%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]