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53123-88-9 Usage

Originator

Rapamune,Wyeth Laboratories,UK

Uses

DDP-4 inhibitor type 2 diabetes therapeutic

Indications

Mechanistic target of rapamycin (mTOR) is a serine/threonine-specific protein kinase in the PI3/PI4-kinase family. mTOR was named after the natural macrolide rapamycin, also known as sirolimus, which was isolated from a soil sample from Easter Island in the 1970s and later evaluated as an immunosuppressive agent. The anticancer activity of rapamycin was discovered in the 1980s, although the mechanismof action and the identification of the rapamycin target, mTOR, were not elucidated until the 1990s. Rapamycin and its macrocyclic analogues, such as temsirolimus (Torisel(R), Wyeth/Pfizer) and everolimus (Afinitor(R), Novartis), are grouped as “rapalogs” that constitute the first-generation mTOR inhibitors. Rapamycin was approved by the US FDA in 1999 as an immunosuppressive agent to prevent organ rejection in patients receiving kidney transplants. Although a large number of clinical studies have been performed to evaluate the anticancer activities of sirolimus in different types of cancers, such as invasive bladder cancer, breast cancer, and leukemia, most studies show limited efficacy. Outside oncological indications, sirolimus was approved by FDA for the treatment of a rare progressive lung disease lymphangioleiomyomatosis in 2015. Temsirolimus was approved for the treatment of advanced RCC. Everolimus was approved in the EU for the prevention of organ rejection in heart and kidney transplant recipients before FDA approved it in 2009 for the treatment of advanced RCC resistant to sunitinib or sorafenib and for the treatment of advanced or metastatic gastrointestinal and lung tumors in 2016. Additionally, rapamycin and rapalogs are being investigated as antiaging therapeutics or for the treatment of age-related diseases. Studies have revealed that mTOR activity can be retained under hypoxic conditions via mutations in the PI3K pathway, leading to increased translation and hypoxic gene expression and tumor progression.

Uses

Labelled Rapamycin. A triene macrolide antibiotic isolated from Streptomyces hygroscopicus. Name derived from the native word for Easter Island, Rapa?Nui. Used as an immunosuppressant; antirestenotic. This compound contains aproximately 2% d0.;Labeled Sir

Uses

Rapamycin is a triene macrolide discovered in 1995 as a metabolite of Streptomyces hygroscopicus found in a soil obtained on Rapi Nui (Easter Island). Rapamycin displayed potent and selective antifungal activity, notably against Candida albicans. Interest in the metabolite waned until the structural relationship to the potent immunosuppressant fujimycin (Antibiotic FK506) was recognised in the mid-1980s. This recognition led to the re-discovery of rapamycin as a highly selective antitumour and immunosuppressant. Rapamycin inhibits the activity of the protein, mTOR (mammalian target of rapamycin) which functions in a signalling pathway to promote tumour growth. Rapamycin binds to a receptor protein (FKBP12). The rapamycin/FKB12 complex then binds to mTOR and prevents interaction of mTOR with target proteins in this signalling pathway.

Indications

Sirolimus (Rapamune) is structurally related to tacrolimus. It is approved for use as an adjunctive agent in combination with cyclosporine for prevention of acute renal allograft rejection. It blocks IL-2-dependent T-cell proliferation by inhibiting a cytoplasmic serine– threonine kinase. This mechanism of action is different from those of tacrolimus and cyclosporine. This allows sirolimus to augment the immunosuppressive effects of these drugs.

Uses

Tool for immunochemistry.

Brand name

Rapamune (Wyeth).

Definition

ChEBI: A macrolide isolated from Streptomyces hygroscopicus consisting of a 29-membered ring containing 4 trans double bonds, three of which are conjugated. It is an antibiotic, immunosupressive and antineoplastic agent.

Uses

A specific mTOR inhibitor with an IC50 of 0.1 nM.

Biological Activity

Antifungal and immunosuppressant. Specific inhibitor of mTOR (mammalian target of Rapamycin). Complexes with FKBP-12 and binds mTOR inhibiting its activity. Inhibits interleukin-2-induced phosphorylation and activation of p70 S6 kinase.

Mechanisms of Action

Rapamycin is a type of macrolide antibiotic and has a similar structure to Prograf (FK506), but has very different immunosuppressing mechanisms. FK506 suppresses T lymph cells from proliferating from G0 to G1 stage, while RAPA uses different cytokine receptors to block signal transduction, thus preventing T lymph cells and other cells from proliferating from G1 to S stage. Compared to Prograf, Rapamycin can block the signal transduction pathways of the calcium dependency and calcium non-dependency of T lymph cells and B lymph cells.

Application

As an mTOR inhibitor, sirolimus has a broad spectrum of activity that has demonstrated the ability to inhibit inflammation, proliferation, angiogenesis, fibrosis, and hyperpermeability. Sirolimus currently has multiple uses in the prevention of rejection in organ transplantation and, recently, in the treatment of advanced renal cell carcinoma. Sirolimus-eluting cardiac stents have been shown to limit the rate of overgrowth of tissue and thus prevent coronary restenosis. Early studies suggest that it may be an effective agent for controlling severe uveitis and that it may also have a role in treating agerelated macular degeneration.

Indications and Usage

Rapamycin (Rapa, or Sirolimus) is a new form of macrolide immunosuppressive agent. It is a white solid crystal. Its melting point is 183-185℃ and it is lipophilic. It is soluble in methanol, ethanol, acetone, chloroform, and other organic solvents, very slightly soluble in water, and almost insoluble in ether. It was first discovered in 1975 on the Chilean Easter Island as a secondary metabolite secreted by soil Streptomyces, and its chemical structure is that of a three-polyene macrolide compound. Rapamycin is a new form of immunosuppressive agent with good curative effects, low toxicity, and no nephrotoxicity. It can be used to maintain the immunity of transplant organs (especially in kidney transplants) to alleviate immunological rejections after organ transplant surgeries. The latest research has shown that Rapamycin can also be used to treat Alzheimer’s. When used on afflicted lab rats, it had a memory-restoring effect. Rapamycin oral tablets can be taken with grapefruit juice to treat melanoma (a type of benign tumor common among Western populations), dramatically increase other chemotherapy drugs’ anticancer effects, and extend patient survival. Rapamycin is a mammalian target of rapamycin (mTOR) targeting inhibitor, which can treat tumors that are related to this pathway including kidney cancer, lymphoma, lung cancer, liver cancer, breast cancer, neuroendocrine carcinoma, gastric cancer, etc. Its curative effects are especially strong for the rare diseases LAM (lymphangiomyomatosis) and TSC (tuberous sclerosis).

Chemical Properties

White to Off-White Solid

Uses

Rapamycin is an immunosuppressant that is used primarily to prevent the rejection of organ and bone marrow transplant. It was first described as a potent inhibitor of IL-2 activation of lymphocytes (IC50 = 5 pM). It is now known that rapamycin specifically interacts with the cytosolic FK-binding protein 12 (FKBP12) to form a complex which inhibits the mammalian target of rapamycin (mTOR) pathway by directly binding to mTOR Complex 1 (mTORC1). Rapamycin and other inhibitors of mTORC1 signaling show potential in treating cancer, adipogenesis, diabetes, tuberous sclerosis, and cardiovascular disease.[Cayman Chemical]

Uses

Rapamycin is a triene macrolide discovered in 1974 as a metabolite of Streptomyces hygroscopicus found in a soil obtained on Rapa Nui (Easter Island). Rapamycin displayed potent and selective antifungal activity, notably against Candida albicans. Interest in the metabolite waned until the structural relationship to the potent immunosuppressant fujimycin (Antibiotic FK506) was recognised in the mid-1980s. This recognition led to the re-discovery of rapamycin as a highly selective antitumor and immunosuppressant. Rapamycin inhibits the activity of the protein, mTOR (mammalian target of rapamycin) which functions in a signalling pathway to promote tumor growth. Rapamycin binds to a receptor protein (FKBP12). The rapamycin/FKB12 complex then binds to mTOR and prevents interaction of mTOR with target proteins in this signalling pathway.

Adverse reactions

Rapamycin has similar side effects to those of Prograf. Many clinical trials have found that its side effects are dose dependent and reversible. A treatment dosage of Rapamycin has not been found to lead to any significant nephrotoxicity or gingival hyperplasia. Its main toxic side effects include: headache, nausea, dizziness, nosebleed, and join pain. Laboratory inspections for anomalies found: thrombocytopenia, decreased white blood cells, decreased hemoglobin, hypertriglyceridemia, hypercholesterolemia, hyperglycemia, increased liver enzymes (SGOT, SGPT), increased lactate dehydrogenase, hypokalemia, hypokalemia, etc. Rapamycin may lead to puffiness of eyelids and lead to lowered plasma phosphate levels. Similar to other immunosuppressants, Rapamycin may also increase the chance of infection, with reports of increased tendency towards pneumonia.

Uses

immunosuppressant, antineoplastic; rapamycin

Manufacturing Process

Streptomyces hygroscopicus NRRL 5491 was grown and maintained on oatmeal-tomato paste agar slants (T. G. Pridham et al.; Antibiotic Annual 1956-1957, Medical Encyclopedia Inc., New York, p. 947) and in Roux bottles containing the same medium. Good growth was obtained after 7 days of incubation at 28°C. Spores from one Roux bottle were washed off and suspended into 50 ml of sterile distilled water. This suspension was used to inoculate the first stage inoculum.The first-stage inoculum medium consisted of Emerson broth [R. L. Emerson et al., J. Bacteriol, 52, 357 (1946)] 0.4% peptone, 0.4% sodium chloride, 0.25% yeast extract and 1% glucose; pH 7.0; flasks containing the above medium were inoculated with 1 % of the spore suspension described above. The inoculated flasks were incubated for 30 hours at 28°C on a reciprocating shaker set at 65 r.p.m. (4 inch stroke).Production stageThe production stage was run in 250-liter New Brunswick fermenters Model F- 250, equipped with automatic antifoam addition system and pH recordercontroller. The fermenters were charged with 160 L of an aqueous production medium consisting of the following constituents: 1.0% soluble starch; 0.5% (NH4)2SO4; 0.5% K2HPO4; 1.5% glucose (Cerelose); 0.025% MgSO4; 0.005% ZnSO4; 0.001% MnSO4; 0.002% FeSO47H2O; 0.2% CaCO3; 0.5% "Blackstrap" molasses; 0.5% hydrolyzed casein; 0.2% lard oil; pH 7.1 to 7.3 of first stage inoculum. Incubation temperature: 28°C; aeration: 0.5 vol/vol/min; agitation: 250 r.p.m. The fermenters were sterilized at 121°C for 45 min, cooled and inoculated with one flask inoculum).A titre of ca. 20 μg/ml, determined by microbiological assay on agar plates seeded with Candida albicans, was reached in 5 days. The fermentation was stopped. The fermentation mixture was extracted twice with 1 v/v of nbutanol. The combined butanol extracts were washed with 1 v/v of water, dried with anhydrous sodium sulfate and evaporated to dryness under reduced pressure to yield a residue. The oily residue was extracted 3 times with 2 L of methanol. The combined methanol extracts were passed through diatomaceous earth (Celite) and evaporated to dryness to yield an oily residue containing crude Rapamycin.

Therapeutic Function

Immunosuppressive, Antifungal

Uses

antidepressant
InChI:InChI=1/C51H79NO13/c1-30-16-12-11-13-17-31(2)42(61-8)28-38-21-19-36(7)51(60,65-38)48(57)49(58)52-23-15-14-18-39(52)50(59)64-43(33(4)26-37-20-22-40(53)44(27-37)62-9)29-41(54)32(3)25-35(6)46(56)47(63-10)45(55)34(5)24-30/h11-13,16-17,25,30,32-34,36-40,42-44,46-47,53,56,60H,14-15,18-24,26-29H2,1-10H3/b13-11+,16-12-,31-17+,35-25+/t30-,32-,33-,34-,36-,37+,38?,39+,40-,42+,43+,44-,46-,47+,51-/m1/s1

53123-88-9 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
TCI America (R0097)  Rapamycin  >98.0%(HPLC) 53123-88-9 25mg 1,850.00CNY Detail

53123-88-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name sirolimus

1.2 Other means of identification

Product number -
Other names RPM

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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