MACS GMP PepTivator® WT1

MACS GMP PepTivator

The MACS GMP PepTivator WT1 is a peptide pool that consists mainly of 15-mer peptides with eleven amino-acid overlaps. It has been developed for efficient
in vitro
stimulation and subsequent isolation of WT1-specific CD4
and CD8
T cells.


MACS GMP Products are for research use and
ex vivo
cell culture processing only, and are not intended for human
in vivo
applications. For regulatory status in the USA, please contact your local representative.

Background information

The Wilms tumor antigen (WT1) is a zinc-finger transcription factor and is expressed during normal ontogenesis. Expression is absent or restricted to a very low level in adult healthy tissue. However, WT1 is expressed at high levels in various types of leukemia and solid tumors, including lung, breast, colon cancer and soft tissue sarcomas. The WT1 protein is highly immunogenic and has become an attractive target for anticancer immunotherapy.


Spontaneous humoral and cellular immune responses against WT1 have been described in patients with leukemia. Therefore WT1 has become an attractive target for tumor-directed immunotherapy.
in vitro
stimulation of WT1-specific CD4
and CD8
T cells with MACS GMP PepTivator WT1 causes them to produce the effector cytokine IFN-gamma. The presence of IFN-gamma on the cell surface then permits the enrichment of WT1-specific effector/memory T cells with the use of the CliniMACS Cytokine Capture System (IFN-gamma).
Adoptive transfer of WT1-specific T cells or vaccination with WT1-pulsed dendritic cells may be an effective tool for the treatment of WT-expressing malignancies.

Quality statement

MACS GMP Products are manufactured and tested under a quality management system (ISO 13485) and are in compliance with relevant GMP guidelines. They are designed following the recommendations of USP <1043> on ancillary materials.
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stimulation of
CNY 40,966.00

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