Alefacept, also known as Amevive, is a recombinant human LFA3-Ig-G1 fusion protein that functions by blocking the T-cell CD2 receptor, thereby preventing T-cell proliferation, which is a key mechanism in psoriasis. It is a dimeric fusion protein consisting of the LFA-3 (leukocyte function antigen-3) and the Fc (hinge, CH2, and CH3) portion of human IgG1. Alefacept has been produced in Chinese hamster ovary (CHO) and NS-0 myeloma cell lines and has demonstrated efficacy in inhibiting antigen and mitogen-induced T-cell responses in transgenic mice expressing human CD2.
222535-22-0
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Basic information
- Product Name: alefacept
- Synonyms: Amevive;Bg 9273;Bg 9712;Human lfa 3igg fusion protein;Lfa 3;Lfa 3cd2;Lfa 3tip;1-92-Lfa-3 (antigen) (human) fusion protein with immunoglobulin G1 (human hinge-ch2-ch3 gamma1-chain), dimer
- CAS NO:222535-22-0
- Molecular Formula:
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
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- Density: N/A
- Refractive Index: N/A
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- Solubility: N/A
- CAS DataBase Reference: alefacept(CAS DataBase Reference)
- NIST Chemistry Reference: alefacept(222535-22-0)
- EPA Substance Registry System: alefacept(222535-22-0)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 222535-22-0(Hazardous Substances Data)
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222535-22-0 Usage
Uses
Used in Pharmaceutical Industry:Alefacept is used as a therapeutic agent for the treatment of chronic plaque psoriasis. It has been shown to improve PASI scores and provide a long-lasting effect, reducing the need for chronic maintenance dosing in all patients. Alefacept is dosed once weekly by injection, either subcutaneously or intramuscularly, and is approved for a 12-week regimen. It has been well-tolerated and has fewer side effects compared to other treatments such as phototherapy, cyclosporin, and methotrexate. Additionally, clinical studies for repeat courses (second twelve weeks) have shown additional improvement in patients.
Indications
Alefacept (Amevive) is a fully human lymphocyte function–associated antigen 3/immunoglobulin 1 (LFA-3/IgG1) fusion protein. It binds to CD2 on T cells, inhibiting T-cell activation and producing selective T-cell apoptosis. Alefacept is FDA approved as a 12-week course of 15 mg weekly intramuscular injections. Long remissions can be seen in responders. Peripheral CD4 counts should be followed and doses withheld if counts drop below 250 cells/μL. Therapy should be discontinued if the CD4 count remains below 250 cells/μL for >4 weeks. A second course lengthens the period of remission without additional toxicities.Check Digit Verification of cas no
The CAS Registry Mumber 222535-22-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,5,3 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.Calculate Digit Verification of CAS Registry Number 222535-22:
(8*2)+(7*2)+(6*2)+(5*5)+(4*3)+(3*5)+(2*2)+(1*2)=100
100 % 10 = 0
So 222535-22-0 is a valid CAS Registry Number.
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alefacept
