High quality products to support Pathologists and Biological and Environmental Scientists
GeneAb™ TIGIT
$150.00 – $680.00TIGIT is an immune receptor present on some T cells and Natural Killer cells. TIGIT binds with high affinity to the poliovirus receptor (PVR) which causes increased secretion of IL10 and decreased secretion of IL12B and suppresses T cell activation by promoting the generation of mature immunoregulatory dendritic cells. Through the CD226/TIGIT-PVR pathway, TIGIT regulates T cell mediated immunity. In cancer, TIGIT and PD-1 have been shown to be over-expressed on tumor antigen-specific CD8+ T cells and CD8+ tumor infiltrating lymphocytes (TILs) from individuals with melanoma. Blockade of TIGIT and PD-1 led to increased cell proliferation, cytokine production, and degranulation of tumour antigen-specific CD8+ T cells and TIL CD8+ T cells. It can be considered an immune checkpoint.
GeneAb™ p16 INK4A (IVD)
$140.00 – $545.00This antibody is intended for in vitro diagnostic (IVD) use.
The p16INK4A [IHC216] antibody is intended for qualified laboratories to qualitatively identify by light microscopy, the presence of associated antigens in formalin-fixed, paraffin-embedded (FFPE) tissue sections using immunohistochemistry test methods. Use of this antibody is indicated, subsequent to clinical differential diagnoses of diseases, as an aid in the identification of neoplastic tissue within the context of antibody panels, the patient’s clinical history and other diagnostic tests as evaluated by a qualified pathologist.
GeneAb™ HBsAg
$85.00 – $350.00Hepatitis B surface antigen (HBsAg) contains the large (L), middle (M), and small (S) surface proteins of the Hepatitis-B-Virus (HBV). It is the surface antigen of HBV, indicating current Hepatitis B infection. The body produces antibodies to HBsAg as part of the normal immune response to infection. Immunohistochemical staining for HBsAg in liver tissue is useful for the detection of HBV.
GeneAb™ Ki-67
$75.00 – $340.00Ki-67 is a nuclear, non-histone protein that is expressed only during active phases of the cell cycle (G1, S, G2 and M), but not in the resting phases (G0 and G1 early phase). Although the antigen has also been associated with ribosomal RNA transcription, it is strongly linked to cell proliferation and has thus been indicated as an effective marker in grading the proliferation rate of tumours, including those of the brain, breast, cervix, and prostate.
GeneAb™ CD163
$100.00 – $455.00Cluster of Differentiation 163 (CD163) is a receptor found exclusively on the surface of monocytes and macrophages. The solubilized form in plasma is upregulated in inflammatory diseases such as rheumatoid arthritis, atherosclerosis, and Gaucher’s disease, which supports recent studies that have found IL-10, glucocorticoids, and other inflammatory modulators to upregulate CD163 expression. CD163 staining is useful for differentiating synovial intimal fibroblasts from synovial macrophages in rheumatoid arthritis. Overexpression of CD163 is also present in patients with myelomonocytic leukemia dealing with microbial infections. CD163 expression is found in leukemias with monocytic differentiation and synovial-type giant cell tumours of the vertebral column.
GeneAb™ OX40
$235.00 – $915.00OX40 is a member of the tumor necrosis factor (TNF) receptor superfamily, which regulates T cell activity and immune response. OX40 is mainly activated by CD4 + and CD8 + T cells. It is expressed on cells, while OX40 ligands (OX40L, TNFSF4, CD252) are mainly expressed on activated antigen-presenting cells. Research shows that the OX40 pathway is related to inflammation and autoimmune diseases. Other studies have shown that OX40 agonists can enhance the anti-tumour immunity of several cancer types.
GeneAb™ CD30
$70.00 – $305.00Cluster of Differentiation 30 (CD30) is a transmembrane cytokine receptor expressed by activated T- and B- cells. It is present on Reed-Sternberg cells in Hodgkin’s lymphoma, most anaplastic large cell lymphomas, embryonal carcinomas, and primary cutaneous CD30 positive T-cell lymphoproliferative disorders. B-cell lymphomas are sometimes stained by Anti-CD30. Lymphomas exhibit Golgi zone accentuation when stained with Anti-CD30, while embryonal carcinomas produce membranous stains.
GeneAb™ B7H4
$210.00 – $980.00B7H4 is a glycosylated transmembrane protein of the B7 family. It binds to activated T cells to moderate the T cell responses via cell cycle arrest in the T cell. Reverse signaling can induce either cell cycle arrest or apoptosis in the B7H4 expressing cell. B7H4 is up-regulated in several carcinomas in correlation with tumor progression and metastasis. A soluble form of B7H4 is elevated in the serum of ovarian cancer, renal cell carcinoma, and rheumatoid arthritis patients, also in correlation with advanced disease status.