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Key Documents

238M-9

Sigma-Aldrich

Chromogranin A (LK2H10) Mouse Monoclonal Antibody

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

Quality Level

100
500

conjugate

unconjugated

antibody form

culture supernatant

antibody product type

primary antibodies

clone

LK2H10, monoclonal

description

For In Vitro Diagnostic Use in Select Regions (See Chart)

form

buffered aqueous solution

species reactivity

human

packaging

vial of 0.1 mL concentrate (238M-94)
vial of 0.5 mL concentrate (238M-95)
bottle of 1.0 mL predilute (238M-97)
vial of 1.0 mL concentrate (238M-96)
bottle of 7.0 mL predilute (238M-98)

manufacturer/tradename

Cell Marque™

technique(s)

immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100-1:500

isotype

IgG1κ

control

pancreas

shipped in

wet ice

storage temp.

2-8°C

visualization

cytoplasmic

Gene Information

human ... CHGA(1113)

General description

Immunohistochemical methods have localized chromogranin in a wide variety of endocrine tissues including the pituitary, pancreas, hypothalamus, thymus, thyroid, intestine, and parathyroid. Neuroendocrine cells exhibit a fine granular immunoreactivity to chromogranin. It is generally accepted that the co-expression of certain keratins and chromogranin mean neuroendocrine lineage. The presence of strong chromogranin staining and absence of keratin staining should raise the possibility of paraganglioma. The co-expression of chromogranin and NSE is typical of neuroendocrine neoplasms. Most pituitary adenomas and prolactinomas readily express chromogranin.

Quality


IVD
IVD
IVD
RUO

Linkage

Chromogranin A Positive Control Slides, Product No. 238S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).

Physical form

Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide

Preparation Note

Download the IFU specific to your product lot and formatNote: This requires a keycode which can be found on your packaging or product label.

Other Notes

For Technical Service please contact: 800-665-7284 or email: service@cellmarque.com

Legal Information

Cell Marque is a trademark of Merck KGaA, Darmstadt, Germany

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Certificates of Analysis (COA)

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R Fischer-Colbrie et al.
Neuroscience, 16(3), 547-555 (1985-11-01)
Bovine chromaffin granules contain two major families of acidic proteins, chromogranins A and B. The occurrence of these proteins in endocrine and nervous tissue was investigated by immunoblotting (one- and two-dimensional), and by immunohistochemistry. Immunoblotting revealed that in anterior hypophysis
S A Hearn
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 35(7), 795-801 (1987-07-01)
An antibody (LK2H10) to chromogranin A has been recommended for use in ultrastructural identification of neuroendocrine secretory granules. Previous studies have demonstrated immunoreactive chromogranin A in specimens prepared for electron microscopy by glutaraldehyde fixation only. In this study, the effect
A M Bofin et al.
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica, 110(9), 658-664 (2003-01-17)
The aim of the study was to determine if, by means of tyramide signal amplification (TSA), the presence of chromogranin A (CgA)-positive tumour cells could be demonstrated in breast cancer cases found to be negative by conventional immunohistochemical staining. Sections
G Qvigstad et al.
The Histochemical journal, 32(9), 551-556 (2000-12-29)
Neuroendocrine cells are often disclosed in human gastric adenocarcinomas and may be recognised by their immunoreactivity towards chromogranin A. However, in dedifferentiated neuroendocrine tumour cells, the chromogranin A content may be reduced making it difficult to detect with conventional immunohistochemical
G J Kontochristopoulos et al.
Dermatology (Basel, Switzerland), 201(2), 123-126 (2000-10-29)
Although Merkel cell carcinoma (MCC) exhibits specific clinical and histologic features, differentiation from other cutaneous neoplasms, such as lymphoma, metastatic oat cell carcinoma and malignant melanoma (MM), may sometimes be difficult. The aim of our study was to immunohistochemically differentiate
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