The HMB45 clone reacts with a neuraminidase-sensitive oligosaccharide side chain of a glycoconjugate present in immature melanosomes. Studies have shown the HMB45-reactive antigen is present in cutaneous melanocytes, prenatal and infantile retinal pigment epithelium and melanoma cells. It is also thought to be oncofetal in nature.15 The MART-1/Melan A recognizes a protein of 18kDa, identified […]
MART-1 recognizes a protein of 18 kDa, identified at MART-1 (Melanoma Antigen Recognized by T cells 1). MART-1 is a useful addition to melanoma panels as it is specific for melanocytic lesions (1- 3). Studies have shown that MART-1 is more sensitive than HMB45 when labeling metastatic melanomas (3). Tyrosinase is a key enzyme involved […]
MART-1 recognizes a protein of 18 kDa, identified at MART-1 (Melanoma Antigen Recognized by T cells) (1). MART-1 is a useful addition to melanoma panels as it is apparently specific for melanocytic lesions (1,2). Studies have shown that MART-1 is more sensitive than HMB45 when labeling metastatic melanomas (3). This MART-1 cocktail does not stain […]
MART-1 recognizes an 18 kDa protein (Melanoma Antigen Recognized by T cells 1) and is specific for melanocytic lesions, making it a valuable component of melanoma panels.15-17 MART-1 has been shown to be more sensitive than HMB45 for labeling metastatic melanomas. Tyrosinase, a key enzyme in early melanin biosynthesis, is more sensitive than HMB45 and […]
Tyrosinase is a key enzyme involved in the initial stages of melanin biosynthesis. Studies have shown Tyrosinase antibody to be a more sensitive marker for melanoma when compared to HMB45 and MART-1. It has also shown to label a higher percentage of desmoplastic melanomas than HMB45. Unlike HMB45, Tyrosinase does not discriminate between activated or […]
The MART-1/Melan A recognizes a protein of 18 kDa, identified as MART-1 (Melanoma Antigen Recognized by T cells 1) or Melan-A. The MART-1 recognizes a subcellular fraction found in melanosomes. The antibody labels melanomas and tumors showing melanocytic differentiation. It does not mark neoplasms of epithelial origin, lymphomas or mesenchymal tumors. MART-1 is a useful […]
HMB45 reacts with a neuraminidase-sensitive oligosaccharide side chain of a glycoconjugate present in immature melanosomes. The HMB45-reactive antigen is present in cutaneous melanocytes, prenatal and infantile retinal pigment epithelium (RPE), and melanoma cells and is thought to be oncofetal in nature. This antibody has been shown to label the majority of melanomas.15
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The skin is the largest human body organ. It is comprised of many different layers, each with its own unique function and susceptibility to abnormalities. Melanoma is a deadly skin disease known for its aggressive clinical behavior and high tendency to metastasize.1 Most melanomas can be accurately diagnosed by examining histological features, including asymmetry, lack […]
