THIOLUTIN

Bezeichnung:THIOLUTIN

CAS-Nr87-11-6

Englisch Name:THIOLUTIN

CBNumberCB3435551

SummenformelC8H8N2O2S2

Molgewicht228.29

MOL-Datei87-11-6.mol

THIOLUTIN physikalisch-chemischer Eigenschaften

Schmelzpunkt	273-276℃
Siedepunkt	200°C (rough estimate)
Dichte	1.4614 (rough estimate)
Brechungsindex	1.5690 (estimate)
storage temp.	−20°C
Löslichkeit	DMSO: 5 mg/mL
Aggregatzustand	Yellow crystalline solid.
pka	10.54±0.20(Predicted)
Farbe	Brilliant-yellow needles from 1-butanol
Stabilität	Stable for 3 years as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
EPA chemische Informationen	Thiolutin (87-11-6)

Sicherheit

Kennzeichnung gefährlicher	T+,T
R-Sätze:	28
S-Sätze:	45
RIDADR	UN 2811 6.1/PG 2
WGK Germany	3
RTECS-Nr.	JP1355000
HS Code	29419090
Toxizität	LD50 in mice (mg/kg): 25 s.c.; 25 orally (Seneca)

Gefahreninformationscode (GHS)

THIOLUTIN Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R28:Sehr giftig beim Verschlucken.
S-Sätze Betriebsanweisung:
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Beschreibung
Thiolutin is a natural dithiol that reversibly inhibits bacterial and yeast RNA polymerases (IC₅₀ = 3 μg/ml). Because of this, it can be used for the analysis of mRNA stability. Thiolutin also inhibits endothelial cell adhesion (IC₅₀ < 1 μM) and S180 tumor-induced angiogenesis in mice by inhibiting Hsp27 interactions with cytoskeletal elements.
Chemische Eigenschaften
Yellow solid
Verwenden
Thiolutin has been used as a polymerase II inhibitor:
- to study its effects on yeast cells to calculate transcript half-life
- to study its effects on transcription during germination in budding yeast
- to study its effects on cell adhesion in zebrafish
Verwenden
Thiolutin is an antibiotic first described by Tanner and co-workers in 1950. Resurgent interest in this class of microbial metabolites was stimulated by the discovery of their selective antitumour activity. Thiolutin is a potent inhibitor of bacterial and yeast RNA polymerases, and also inhibits mannan and glucan formation in fungi. Thiolutin suppresses tumour cell-induced angiogenesis in vivo.
Verwenden
Thiolutin is an antibiotic isolated from several strains of Streptomyces albus. Thiolutin is a natural dithiol that reversibly inhibits bacterial and yeast RNA polymerases.
Definition
ChEBI: Thiolutin is a dithiolopyrrolone antibiotic that is 4,5-dihydro[1,2]dithiolo[4,3-b]pyrrole in which the hydrogens at positions 4,5 and 6 have been replaced by methyl, oxo and acetamido groups, respectively. It is a potent inhibitor of RNA polymerases, inhibits the angiogenesis of human umbilical vein endothelial cells, and also inhibits JAMM metalloproteases. It has a role as an angiogenesis inhibitor, a chelator, a protein synthesis inhibitor, an EC 2.7.7.6 (RNA polymerase) inhibitor, an antibacterial agent, a toxin, a marine metabolite, a bacterial metabolite, an antifungal agent and an antineoplastic agent. It is a dithiolopyrrolone antibiotic and a member of acetamides. It is functionally related to a holomycin.
Biologische Aktivität
Antibiotic; inhibits bacterial RNA polymerase. Inhibits adhesion of HUVEC cells to vitronectin (IC 50 = 0.83 mM) and subsequently reduces paxillin levels. Suppresses tumor cell-induced angiogenesis.
Biochem/physiol Actions
Sulfur-containing antibiotic, which is a potent inhibitor of bacterial and yeast RNA polymerases. It was found to inhibit in vitro RNA synthesis directed by all three yeast RNA polymerases (I, II, and III). Thiolutin is also an inhibitor of mannan and glucan formation in Saccharomyces cerevisiae and used for the analysis of mRNA stability. Studies have shown that thiolutin inhibits adhesion of human umbilical vein endothelial cells (HUVECs) to vitronectin and thus suppresses tumor cell-induced angiogenesis in vivo.
Sicherheitsprofil
Poison by ingestion andsubcutaneous routes. When heated to decomposition itemits very toxic fumes of NOx and SOx.
Einzelnachweise
Jing et al. (2021), Blockade of deubiquitinating enzyme PSMD14 overcomes chemoresistance in head and neck squamous cell carcinoma by antagonizing E2F1/Akt/SOX2-mediated stemness; Theranostics, 11 2655 Jia et al. (2010), Thiolutin inhibits endothelial cell adhesion by perturbing Hsp27 interactions with components of the actin and intermediate filament cytoskeleton; Cell Stress Chaperones 15 165 Minamiguchi et al. (2001), Thiolutin, an inhibitor of HUVEC adhesion to vitronectin, reduces paxillin in HUVECs and suppresses tumor cell-induced angiogenesis; Int. J. Cancer, 93 307

THIOLUTIN Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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