IHC of INSM1 on an FFPE Neuroendocrine Lung Carcinoma Tissue

Specification Sheets
Safety Data Sheet


Intended Use For In Vitro Diagnostic Use
Summary and Explanation Insulinoma-associated 1 (INSM1) gene encodes a protein containing both a zinc finger DNA-binding domain and a putative prohormone domain, originally isolated from a human insulinoma-glucagonoma subtraction library. INSM1 mRNA is abundantly expressed in fetal NE developmental tissues and expressed in normal adult neuroendocrine tissues (adrenal medulla, pineal gland, pituitary gland, gastrointestinal enterochromaffin cells, pancreatic islet cells, thyroid C cells) and developing neurons, however there is also a high occurrence of INSM1 found in NE tumors, such as Small Cell Lung Cancer (SCLC), Pituitary tumors, Medullary Thyroid Carcinoma, Merkel Cell Carcinoma, Olfactory Neuroblastoma and Pheochromocytoma.

It has been reported that INSM1 expresses exclusively in SCLC specimens using immunohistochemistry, and first elucidated that INSM1 regulates the NE differentiation pathway in lung cancer. In addition, it has demonstrated an increased sensitivity and specificity compared to other NE biomarkers (Chromogranin A, Synaptophysin and CD56) in lung cancer specimens. In addition, it’s been shown to be involved in NE differentiation in medullary thyroid carcinoma, pheochromocytoma, intestinal NE carcinoma, islet cell tumor, pituitary tumor, and SCLC cell lines.

Antibody Type Mouse Monoclonal Clone BSB-123
Isotype IgG1/K Reactivity Paraffin, Frozen
Localization Nuclear Control Pancreas, Colon, Tonsil, Neuroendocrine Lung Cancer, Endometrial & Colon Carcinomas
Presentation INSM1 is a mouse monoclonal antibody derived from cell culture supernatant that is concentrated, dialyzed, filter sterilized and diluted in buffer pH 7.5, containing BSA and sodium azide as a preservative.
Catalog No. Antibody Type Dilution Volume/QTY
BSB 3553 Prediluted Ready-To-Use 3.0 ml
BSB 3554 Prediluted Ready-To-Use 7.0 ml
BSB 3555 Prediluted Ready-To-Use 15.0 ml
BSB 3556 Concentrated 1:50-1:200 0.1 ml
BSB 3557 Concentrated 1:50-1:200 0.5 ml
BSB 3558 Concentrated 1:50-1:200 1.0 ml
BSB 3559 Control Slides 5
Note: For concentrated antibodies, please centrifuge prior to use to ensure recovery of all product.