Melanoma-specific Tetramers

Melanoma is a relatively common type of skin cancer that arise de novo as a malignant neoplasm in melanocytes (cells that make the pigment melanin). It may begin in a mole but can also begin in other pigmented tissues, such as in the eye or in the intestines. From these tissues, it is likely to invade nearby tissue and spread to other parts of the body.

 

Melanoma patients often mount an unprompted T cell response against melanoma. Despite this initial T cell response, the responder T cells eventually become ineffective, most likely due to a local immunosuppressive process occurring at the tumor sites.

 

Recently, the U.S. Food and Drug Administration (FDA) have approved immunotherapy drugs to become first-line single or combination treatment for melanoma and some other cancers. These treatments include checkpoint inhibitor drugs ipilimumab (Yervoy®), pembrolizumab (Keytruda®) and nivolumab (Opdivo®) as well as oncolytic virus therapy approved as talimogene laherparepvec (Imlygic®), also called T-VEC.

 

Common for these treatments is the re-mounting of a T cell response to melanoma antigens. Such T cell specificities for a range of melanoma-associated antigens have been identified using Tetramer assays.  These T cell responses include T cells specific for common cancer antigens including melanocyte lineage proteins such as Tyrosinase, gp100, MART-1 as well as Cancer-Testis antigens like the MAGE proteins and NY-ESO-1.

 

Melanoma-specific Tetramers from Tetramer Shop

Tetramer Shop provides a range of Tetramers for detection of CD8+ melanoma antigen-specific T cells in peripheral blood and in preparations of tumor-infiltrating lymphocytes (TILs).

 

Tetramer reagents from Tetramer Shop include Tetramers for detection of T cells specific for antigens derived from MART-1, NY-ESO-1, MAGE-A3, Tyrosinase, gp100 and MAGE-A1 presented in context of MHC molecules HLA-A02:01, HLA-A24:02 and HLA-B07:02.

 

Relevant melanoma-specific Tetramers – To order Tetramers >> Press here

 

Cat. No. HLA type Pep. Seq. Antigen
HA02-001 HLA-A*02:01 ELAGIGILTV MelanA / MART 26-35
HA02-002 HLA-A*02:01 SLLMWITQV NY-ESO-1 157-165
HA02-003 HLA-A*02:01 SLLMWITQC NY-ESO-1 157-165 (9C)
HA02-004 HLA-A*02:01 KVAELVHFL MAGEA3 112-120
HA02-005 HLA-A*02:01 YMDGTMSQV Tyrosinase 369-377 (371D)
HA02-006 HLA-A*02:01 IMDQVPFSV gp100 (pmel17) 209-217
HA02-019 HLA-A*02:01 ITDQVPFSV gp100 (pmel) 209-217
HA02-007 HLA-A*02:01 KVLEYVIKV MAGEA1 278-286
HA24-001 HLA-A*24:02 AFLPWHRLF Tyrosinase 188-196
HA24-022 HLA-A*24:02 VYFFLPDHL gp100-intron 4 (170-178)
HB07-006 HLA-B*07:02 LPWHRLFLL Tyrosinase 208-216

Control Tetramers

 

Cat. No. HLA type Pep. Seq. Antigen
HA02-024 HLA-A*02:01 AVIAPVHAV None natural found
HA02-025 HLA-A*02:01 GVAGDVSAV None natural found
HA02-014 HLA-A*02:01 SLYNTVATL HIV-1 gag p17 76-84

 

Application of melanoma-specific Tetramers

Tetramers are useful in tetramer protocols for detection, enumeration and isolation of antigen-specific CD8+ T cells in a variety of applications e.g. during cancer vaccine – and immunotherapeutic development.

General information about MHC Tetramers from Tetramer Shop

Tetramer Shop supply MHC Tetramers in various test sizes and the colors PE, BV421, BUV395, APC-Cy™7, APC, BV510, BV480, PE-Cy™5, PE-CF594, PE-Cy™7, PerCP-Cy™5.5, PerCP, FITC, BV605, BV650, BV786, APC-R700, BB515 and BUV737. For other colors, please enquire.

 

Tetramer Shop also supply Empty Loadable Tetramers for instant loading of peptide antigens essentially representing DIY Tetramers.