Immunohistochemistry Catalog
Primary antibodies
Cytokeratin 20
Clone: E19-I
Cat#: DB 119
CK20 has been demonstrated to be almost entirely confined to the gastro intestinal epithelium, urothelium and Merkel cells of the skin.
Fixed-embedded human Merkel cells carcinoma
Cytokeratin 5
Clone: XM26
Cat#: 10083
CK5 is an intermediate filament protein. Basal cells of epidermis express acidic CK14 and basic CK5. CK5 is a 58 kDa protein, which is closely related to CK6. XM26 can be useful in distinction of mesotheliomas from adenocarcinomas.
Fixed-embedded human lung squamous carcinoma
Cytokeratin 7
Clone: R17-S
Cat#: DB 051
CK7 has been reported in adenocarcinomas of the lung, breast, endometrium, ovary, thyroid as well as in carcinomas of the bladder and chromophobe renal cell carcinoma. CK7 and CK20 expression have been reported to show characteristic patterns on metastatic lung and adenocarcinomas.
Fixed-embedded human pancreas adenocarcinoma
Cytokeratin 8
Clone: R15-K
Cat#: DB 098
CK8, also known as tissue polypeptide antigen (TPA), is one of the first cytokeratins expressed in the embryo and persists in adult tissues. It is a major components of all simple epithelia but not of stratified squamous epithelia.
Fixed-embedded human colon adenocarcinoma
Desmin
Clone: E18-V
Cat#: DB 148
Desmin is an intermediate filament protein of both smooth and striated muscles. E18-reacts with striated (skeletal V and cardiac) as well as smooth muscle cells. In skeletal and cardiac muscles, the staining is confined to the Z-bands giving a characteristic striated appearance. Useful in indication of tumors of myogenic origin. It reacts with leimyosarcomas, as well as, rhadbomyosarcomas (striated muscle).
Fixed-embedded human uterus leiomyoma
DOG1
Clone: DOG1.1
Cat#: 10119
DOG1 is expressed ubiquitously in gastrointestinal stromal tumors (GIST) irrespective of kit or PDGFR alpha mutation status. Reactivity for DOG1 may aid in the diagnosis of GISTs, including PDGFRA mutants that fail to express KIT antigen, and lead to appropriate treatment with imatinib mesylate, an inhibitor of the KIT tyrosine kinase.
E-Cadherin
Clone: ECH-6
Cat#: 10072
E-Cadherin is a calcium dependent cell adhesion molecule, expressed predominantly in epithelial tissues. E-Cadherin has important role in growth and development of cells via the mechanisms of control of tissue architecture and maintenance of tissue integrity. Reduction and/or loss of E-Cadherin expression in carcinomas correlates positively with the potential of these tumors for invasion and metastasis.
Fixed-embedded human skin
EBV/LMP
Clone: D24-G
Cat#: 10093
Epstein-Barr virus (EBV) is a virus of the herpes family (HHV-4), and is one of the most common viruses in humans. EBV is associated with a high proportion of cases of Hodgkin's disease, expression has also been found in nasopharyngeal carcinoma and non-lymphoblastic T-cell lymphomas.
Fixed-embedded human Hodgkin lymphoma
EGFR
Clone: A20-E
Cat#: DB 092
Epidermal growth factor receptor (EGFR) is a transmembrane protein receptor of 170 kDa with tyrosine kinase activity. Increased level of EGFR is correlated with malignant transformation of squamous cells e.g. in squamous cell carcinoma of lung, head and neck, skin, cervix and oesophagus.
Fixed-embedded human placenta
EMA (CD227, Mucin-1)
Clone: G22-L
Cat#: DB 048
EMA is expressed on the apical surface of epithelial cells, especially of airway passages, breast and uterus. Also positive on activated and unactivated T cells and plasma cells. Over-expressed in epithelial tumors, such as breast or ovarian cancer and also in non epithelial tumor cells.
Fixed-embedded human lung adenocarcinoma
EpCAM
Clone: MOC-31
Cat#: 10129
This antibody reacts with a transmembrane glycoprotein present on most normal and malignant epithelia. Mesothelial cell derived tumors are negative.
Fixed-embedded tissue
ER (Estrogen receptor)
Clone: S21-V
Cat#: DB 053
This antibody recognizes a protein of 67 kDa, which is identified as estrogen receptor (ER) and stains the nucleus of epithelial cells in breast carcinomas. The ER is an important regulator of growth and differentiation in the mammary gland. Presence of ER in breast cancers indicates an increased likelihood of response to anti-estrogen (e.g. tamoxifen) therapy.
Fixed-embedded human breast cancer
GFAP
Clone: GA-5
Cat#: 10130
Glial Fibrillary Acidic Protein (GFAP) is specific to astrocytes (i.e., glial cells) and ependymal cells of the central nervous system. This antibody is useful in differentiating prima ry gliomas from metastatic lesions in the brain and for documenting astrocytic differentiation in tumors outside the CNS.
Glucocorticoid Receptor (GCR)
Clone: 3D5
Cat#: 10023
The 3D5 monoclonal antibody labels the cytoplasm and surface membrane of GCR producing cells in bone marrow, liver and other tissues.
Fixed-embedded human breast cancer
Human Chorionic Gonadotropin β (hCG β)
Clone: 5H4E2
Cat#: 10022
5H4E2 labels the cytoplasm of HCG B producing cells in placenta, mola hydatidosa, choriocarcinoma, embryonal carcinoma seminoma and some undifferenciated lung cancers. It does not react with cells of normal endometrial, testicular tissues and lung.
Fixed-embedded human seminoma
IgG
Clone: I17-T
Cat#: DB 174
IgG is the main antibody isotype found in blood and extracellular fluid allowing it to control infection of body tissues by binding many kinds of pathogens. The most common feature of plasmacytomas, and certain non Hodgkin's lymphomas is the restricted expression of a single heavy chain class. Demonstration of clonality in lymphoid infiltrates indicates that the infiltrate is clonal and therefore malignant.
Fixed-embedded chronic inflammation with plasma cell reaction
Insulin
Clone: E2E3
Cat#: 10024
The antibody recognizes the biologically most active forms of insulin on the C-terminal end. The antibody labels the cytoplasm of B cells in pancreatic islets and insulomas, and suitable for insulin monitoring in sera from patients with diabetes or insulin producing tumors.
Fixed-embedded human pancreas