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SML3804

Sigma-Aldrich

PMX205 trifluoroacetate

≥98% (HPLC)

Synonym(s):

Hydrocinnamate (HC)-[OP(D-Cha)WR] trifluoroacetate, (5→1)-lactam-N2-(1-oxo-3-phenylpropyl)-L-ornithyl-L-prolyl-3-cyclohexyl-D-alanyl-L-tryptophyl-L-arginine trifluoroacetate, HC-[OP(D-Cha)WR] trifluoroacetate, HC-[Orn-Pro-dCha-Trp-Arg] trifluoroacetate, Hydrocinnamate-(L-ornithine-proline-D-cyclohexylalanine-tryptophan-arginine) trifluoroacetate;, Hydrocinnamate-(OPdChaWR) trifluoroacetate, Hydrocinnamate-[OP(D-Cha)WR] trifluoroacetate, PMX 205 trifluoroacetate, PMX-205 trifluoroacetate, c[Arg-Trp-D-Cha-Pro-Orn]-Hca trifluoroacetat

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About This Item

Empirical Formula (Hill Notation):
C45H62N10O6 · xC2HF3O2
Molecular Weight:
839.04 (free base basis)
MDL number:
MFCD31735786
UNSPSC Code:
51111800
UNSPSC Code:
12352200
NACRES:
NA.21

Quality Level

100

Assay

≥98% (HPLC)

form

(Powder or Lyophilized powder or film)

storage condition

desiccated

color

white to off-white

storage temp.

-10 to -25°C

Biochem/physiol Actions

PMX205 is a blood-brain barrier (BBB)-permeable and orally active cyclic hexapeptide that acts as a high-affinity and potent antagonist against complement C5a receptor C5aR1. Unlike its structural analog PMX53, PMX205 is resistant to intestinal metabolism and shows 10-30-times higher in vivo efficacy when administered orally (mortality rate = 1/9 with 0.1 mg/kg/day PMX205 vs. 2/10 with 1 mg/kg/day PMX53 in a rat colitis model) despite similar in vitro potency (PMX205/PMX53 pIC50 = 6.50/6.38 against 50 pM C5a by competitive binding, 9.03/8.24 against C5a-induced human PMN MPO release). PMX205 shows in vivo efficacy in animal models of AD (3-6 mg/kg/day p.o., mice), ALS (1 mg/kg/day p.o., rats), and HD (10 mg/kg/day p.o., rats).

Caution

Hygroscopic

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Trent M Woodruff et al.
The Journal of pharmacology and experimental therapeutics, 314(2), 811-817 (2005-05-10)
We have previously shown that complement factor 5a (C5a) plays a role in the pathogenesis of 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis in rats by using the selective, orally active C5a antagonist AcF-[OP(d-Cha)WR]. This study tested the efficacy and potency of
Therapeutic activity of C5a receptor antagonists in a rat model of neurodegeneration
Faseb Journal, 20(9), 1407-1417 (2006)
Treatment with a C5aR antagonist decreases pathology and enhances behavioral performance in murine models of Alzheimer's disease
Journal of immunology (Baltimore, Md. : 1950), 183(2), 1375-1383 (2009)

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