Anti-vc-PAB-MMAE polyclonal antibody (CABT-L3100)

Specifications


Host Species
Rabbit
Antibody Isotype
IgG
Species Reactivity
N/A
Conjugate
Unconjugated

Applications


Application Notes
Optimal dilutions for each application to be determined by the researcher. Prepare working dilution immediately before use.
*Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own experiment using appropriate negative and positive controls.

Target


Alternative Names
VC-PAB-MMAE; VcMMAE; Valine-citrulline-p-aminobenzoyloxycarbonyl-monomethyl auristatin E; Vedotin; monomethyl auristatin E

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References


Population Pharmacokinetic Modeling and Exposure-Response Assessment for the Antibody-Drug Conjugate Brentuximab Vedotin in Hodgkin's Lymphoma in the Phase III ECHELON-1 Study

CLINICAL PHARMACOLOGY & THERAPEUTICS

Authors: Suri, Ajit; Mould, Diane R.; Song, Gregory; Collins, Graham P.; Endres, Christopher J.; Gomez-Navarro, Jesus; Venkatakrishnan, Karthik

The efficacy of the CD30-directed antibody-drug conjugate (ADC) brentuximab vedotin was established in combination with chemotherapy as frontline treatment for advanced classical Hodgkin's lymphoma in the randomized phase III ECHELON-1 study. Population pharmacokinetic (PK) and exposure-response models were developed to quantify sources of PK variability and relationships between exposure and safety/efficacy end points in ECHELON-1. The influence of patient-specific factors on the PK of the ADC and the microtubule-disrupting payload monomethyl auristatin E (MMAE) was investigated; none of the significant covariates had a clinically relevant impact. Exposure-response analyses evaluated relationships between time-averaged area under the curve (AUC; ADC, MMAE) and efficacy end points (ADC) or safety parameters (ADC, MMAE). Exposure-efficacy analyses supported consistent treatment benefit with brentuximab vedotin across observed exposure ranges. Exposure-safety analyses supported the recommended brentuximab vedotin starting dose (1.2 mg/kg every 2 weeks), and effective management of peripheral neuropathy and neutropenia with dose modification/reduction and febrile neutropenia with granulocyte colony-stimulating factor primary prophylaxis.

Therapeutic Application of Drug-Conjugated HER2 Oligobody (HER2-DOligobody)

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

Authors: Kim, Hyun Jung; Sung, Ho Jin; Lee, Yul Min; Choi, Sun Il; Kim, Yun-Hee; Heo, Kyun; Kim, In-Hoo

Antibody drug conjugates (ADCs), consisting of a cancer-specific antibody and cytotoxic payload, are shown to be a potent class of anticancer therapeutics, with enhanced therapeutic efficacy and reduced "off-target" side effects. However, the therapeutic window of ADCs is narrowed by problems such as difficulty in site-specific conjugation of payload, changes in antibody stability due to payload conjugation, and difficulty in tissue penetration. In this respect, aptamers have advantages in drug-delivery, as they can be easily and stably conjugated with cytotoxic drugs. We previously reported that oligobody, an aptamer-antibody complex, is a novel delivery method for aptamer-based therapeutics. In the current study, we describe DOligobody, a drug-conjugated oligobody comprising an aptamer-drug conjugate and an antibody. A cotinine-conjugated anti-HER2 aptamer (cot-HER2apt) was specifically bound to HER2-positive NCI-N87 cells, and underwent receptor-mediated endocytosis. Further, HER2-DOligobody, a cot-HER2apt-conjugated monomethyl auristatin E (cot-HER2apt-MMAE) oligobody, inhibited the growth of HER2-positive NCI-N87 cells. Finally, systemic administration of HER2-DOligobody significantly reduced tumor growth in a xenograft mouse model. Taken together, these results suggest that our DOligobody strategy may be a powerful platform for rapid, low-cost and effective cancer therapy.

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