molecular formula C21H26N2S2 B1682328 Thioridazin CAS No. 50-52-2

Thioridazin

Katalognummer: B1682328
CAS-Nummer: 50-52-2
Molekulargewicht: 370.6 g/mol
InChI-Schlüssel: KLBQZWRITKRQQV-UHFFFAOYSA-N
Achtung: Nur für Forschungszwecke. Nicht für den menschlichen oder tierärztlichen Gebrauch.
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Wirkmechanismus

Target of Action

Thioridazine primarily targets postsynaptic mesolimbic dopaminergic D1 and D2 receptors in the brain . These receptors play a crucial role in the regulation of various brain functions, including behavior, mood, and cognition .

Mode of Action

Thioridazine interacts with its targets by blocking the dopaminergic D1 and D2 receptors . This blockage inhibits the alpha-adrenergic effect and depresses the release of hypothalamic and hypophyseal hormones . It is also believed to depress the reticular activating system, thus affecting basal metabolism, body temperature, wakefulness, vasomotor tone, and emesis .

Biochemical Pathways

Thioridazine affects several biochemical pathways. It has been reported to induce autophagy and immunogenic cell death (ICD) in colorectal cancer (CRC) cells . Thioridazine induces endoplasmic reticulum (ER) stress in CRC cells by activating the eIF2α/ATF4/CHOP axis and facilitating the accumulation of secretory autophagosomes, leading to ICD .

Pharmacokinetics

Thioridazine is rapidly absorbed and undergoes extensive hepatic metabolism . The active metabolites of thioridazine include mesoridazine and sulphoridazine .

Result of Action

The molecular and cellular effects of thioridazine’s action are quite significant. Thioridazine renders multidrug-resistant (MDR) cancer cells susceptible to cytotoxic agents to which they were initially resistant . It has anti-proliferative activity and apoptosis-inducing properties in various tumor cell lines and cancer stem cells . Thioridazine also induces major changes in global gene expression and cell wall composition in methicillin-resistant Staphylococcus aureus USA300 .

Biochemische Analyse

Biochemical Properties

Thioridazine has been shown to interact with nucleic acids, causing damage and scissions, particularly at high concentrations . It has also been observed to act synergistically with caffeine, a well-known inhibitor of cellular repair mechanisms, to potentiate the cytogenetic effect of melphalan on human lymphocytes .

Cellular Effects

Thioridazine has been found to have cytotoxic effects in different cell and tissue cultures . It has been shown to decrease the growth of GBM cells and GBM stem-like cells . Furthermore, thioridazine can reduce the minimum inhibitory concentration (MIC) of ciprofloxacin in Staphylococcus aureus strains resistant to it by increased efflux .

Molecular Mechanism

The molecular mechanism of action of thioridazine involves its interaction with nucleic acids, causing damage and scissions . It also acts as a strong calmodulin inhibitor, facilitating the intracellular retention of melphalan . Molecular docking studies have shown the Penicillin-binding proteins PBP3 and PBP2a inhibition by sulforidazine as a possible mechanism of action against Staphylococcus aureus and MRSA strains, respectively .

Temporal Effects in Laboratory Settings

The effects of thioridazine have been studied over time in laboratory settings. It has been observed that thioridazine causes damage to nucleic acids but only at concentrations much higher than those used in cytogenetic experiments .

Metabolic Pathways

It is known that thioridazine can act as a strong calmodulin inhibitor .

Transport and Distribution

It is known that thioridazine can facilitate the intracellular retention of melphalan .

Subcellular Localization

It is known that thioridazine can interact with nucleic acids, causing damage and scissions .

Eigenschaften

IUPAC Name

10-[2-(1-methylpiperidin-2-yl)ethyl]-2-methylsulfanylphenothiazine
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI

InChI=1S/C21H26N2S2/c1-22-13-6-5-7-16(22)12-14-23-18-8-3-4-9-20(18)25-21-11-10-17(24-2)15-19(21)23/h3-4,8-11,15-16H,5-7,12-14H2,1-2H3
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI Key

KLBQZWRITKRQQV-UHFFFAOYSA-N
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Canonical SMILES

CN1CCCCC1CCN2C3=CC=CC=C3SC4=C2C=C(C=C4)SC
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Molecular Formula

C21H26N2S2
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

DSSTOX Substance ID

DTXSID6023656
Record name Thioridazine
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Description DSSTox provides a high quality public chemistry resource for supporting improved predictive toxicology.

Molecular Weight

370.6 g/mol
Source PubChem
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Description Data deposited in or computed by PubChem

Physical Description

Solid
Record name Thioridazine
Source Human Metabolome Database (HMDB)
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Boiling Point

BP: 230 °C at 0.02 mm Hg
Record name Thioridazine
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Record name Thioridazine
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Solubility

Soluble in alcohol (1 in 6), chloroform (1 in 0.81), ether (1 in 3); freely soluble in dehydrated alcohol. Insoluble in water, Slightly soluble in acetone, In water, log units of molar solubility, mole/L = -5.82 (0.560 mg/L), 8.55e-04 g/L
Record name Thioridazine
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Record name Thioridazine
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Record name Thioridazine
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Mechanism of Action

Thioridazine blocks postsynaptic mesolimbic dopaminergic D1 and D2 receptors in the brain; blocks alpha-adrenergic effect, depresses the release of hypothalamic and hypophyseal hormones and is believed to depress the reticular activating system thus affecting basal metabolism, body temperature, wakefulness, vasomotor tone, and emesis., The basic pharmacological activity of thioridazine is similar to that of other phenothiazines, but is associated with minimal extrapyramidal stimulation., The principal pharmacologic effects of thioridazine are similar to those of chlorpromazine. On a weight basis, thioridazine is about as potent as chlorpromazine. Thioridazine has strong anticholinergic and sedative effects and weak extrapyramidal effects. Thioridazine has little antiemetic activity., The development of phenothiazine derivatives as psychopharmacologic agents resulted from the observation that certain phenothiazine antihistaminic compounds produced sedation. In an attempt to enhance the sedative effects of these drugs, promethazine and chlorpromazine were synthesized. Chlorpromazine is the pharmacologic prototype of the phenothiazines. The pharmacology of phenothiazines is complex, and because of their actions on the central and autonomic nervous systems, the drugs affect many different sites in the body. Although the actions of the various phenothiazines are generally similar, these drugs differ both quantitatively and qualitatively in the extent to which they produce specific pharmacologic effects. /Phenothiazine General Statement/, In the CNS, phenothiazines act principally at the subcortical levels of the reticular formation, limbic system, and hypothalamus. Phenothiazines generally do not produce substantial cortical depression; however, there is minimal information on the specific effects of phenothiazines at the cortical level. Phenothiazines also act in the basal ganglia, exhibiting extrapyramidal effects. The precise mechanism(s) of action, including antipsychotic action, of phenothiazines has not been determined, but may be principally related to antidopaminergic effects of the drugs. There is evidence to indicate that phenothiazines antagonize dopamine-mediated neurotransmission at the synapses. There is also some evidence that phenothiazines may block postsynaptic dopamine receptor sites. However, it has not been determined whether the antipsychotic effect of the drugs is causally related to their antidopaminergic effects. Phenothiazines also have peripheral and/or central antagonistic activity against alpha-adrenergic, serotonergic, histaminic (H1-receptors), and muscarinic receptors. Phenothiazines also have some adrenergic activity, since they block the reuptake of monoamines at the presynaptic neuronal membrane, which tends to enhance neurotransmission. The effects of phenothiazines on the autonomic nervous system are complex and unpredictable because the drugs exhibit varying degrees of alpha-adrenergic blocking, muscarinic blocking, and adrenergic activity. The antipsychotic activity of phenothiazines may be related to any or all of these effects, but it has been suggested that the drugs' effects on dopamine are probably most important. It has also been suggested that effects of phenothiazines on other amines (eg, gamma-aminobutyric acid [GABA]) or peptides (eg, substance P, endorphins) may contribute to their antipsychotic effect. Further study is needed to determine the role of central neuronal receptor antagonism and of effects on biochemical mediators in the antipsychotic action of the phenothiazines and other antipsychotic agents. /Phenothiazine General Statement/, For more Mechanism of Action (Complete) data for Thioridazine (13 total), please visit the HSDB record page.
Record name Thioridazine
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Color/Form

Crystals from acetone, Colorless crystals

CAS No.

50-52-2
Record name Thioridazine
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Explanation HMDB is offered to the public as a freely available resource. Use and re-distribution of the data, in whole or in part, for commercial purposes requires explicit permission of the authors and explicit acknowledgment of the source material (HMDB) and the original publication (see the HMDB citing page). We ask that users who download significant portions of the database cite the HMDB paper in any resulting publications.

Melting Point

72-74 °C, MP: 158-160 °C. UV max (water): 262, 310 nm (epsilon 41842, 3215); (95% ethanol): 264, 310 nm (epsilon 41598, 3256); (0.1N HCl): 264, 305 nm (epsilon 42371, 5495): (0.1N NaOH): 263 nm (epsilon 18392). Soluble in water (1 in 9); freely soluble in ethanol (1 in 10), methanol, chloroform (1 in 5). Insoluble in ether /Thioridazine hydrochloride/, 73 °C
Record name Thioridazine
Source DrugBank
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Record name Thioridazine
Source Human Metabolome Database (HMDB)
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Description The Human Metabolome Database (HMDB) is a freely available electronic database containing detailed information about small molecule metabolites found in the human body.
Explanation HMDB is offered to the public as a freely available resource. Use and re-distribution of the data, in whole or in part, for commercial purposes requires explicit permission of the authors and explicit acknowledgment of the source material (HMDB) and the original publication (see the HMDB citing page). We ask that users who download significant portions of the database cite the HMDB paper in any resulting publications.

Retrosynthesis Analysis

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Strategy Settings

Precursor scoring Relevance Heuristic
Min. plausibility 0.01
Model Template_relevance
Template Set Pistachio/Bkms_metabolic/Pistachio_ringbreaker/Reaxys/Reaxys_biocatalysis
Top-N result to add to graph 6

Feasible Synthetic Routes

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