238M-9

Sigma-Aldrich

Chromogranin A (LK2H10) Mouse Monoclonal Antibody

NACRES:
NA.41

Quality Level

biological source

mouse

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

application(s)

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

isotype

IgG1κ

conjugate

unconjugated

control

pancreas

shipped in

wet ice

storage temp.

2-8°C

visualization

cytoplasmic

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

Other Notes

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

Legal Information

Cell Marque is a trademark of Sigma-Aldrich Co. LLC

RIDADR

NONH for all modes of transport

WGK Germany

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
D T O'Connor et al.
Life sciences, 33(17), 1657-1663 (1983-10-24)
Chromogranin A is the major soluble protein co-stored and co-released with catecholamines from catecholamine storage vesicles of adrenal medulla and sympathetic nerve. We recently described a widespread distribution of chromogranin, by radioimmunoassay, in all polypeptide hormone producing tissues. To define...
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...
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 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...
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...
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