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biological source
rabbit
Quality Level
100
500
conjugate
unconjugated
antibody form
Ig fraction of antiserum
antibody product type
primary antibodies
clone
polyclonal
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 (393A-14)
vial of 0.5 mL concentrate (393A-15)
bottle of 1.0 mL predilute (393A-17)
vial of 1.0 mL concentrate (393A-16)
bottle of 7.0 mL predilute (393A-18)
manufacturer/tradename
Cell Marque™
technique(s)
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:25-1:100
control
sebaceous neoplasms (intracytoplasmic lipid droplet)
shipped in
wet ice
storage temp.
2-8°C
visualization
membranous
Gene Information
human ... PLIN2(123)
General description
Sebaceous carcinoma is a relatively uncommon cutaneous malignancy and mimics other malignant neoplasms, such as basal and squamous cell carcinomas, and benign processes, such as chalazions and blepharitis, sometimes resulting in delayed diagnosis and suboptimal treatment.Adipophilin is present in milk fat globule membranes and on the surface of lipid droplets in various normal cell types. Recently, it has been reported that adipophilin was expressed in 16 of 16 (100%) sebaceous adenomas with a specific pattern: membranous with strong uptake at the periphery of intracytoplasmic lipid vacuoles.
Of 25 sebaceous carcinomas, 23 (92%) were also labeled with a similar pattern. Additionally, in cases of poorly differentiated sebaceous carcinoma (n=11), in which sebaceous differentiation could not have been reliably interpreted in H&E sections, adipophilin highlighted the sebocytes with a strong membranous labeling of intracytoplasmic lipid droplets in 9 of 11 cases (82%). Moreover, 10 of 10 (100%) xanthelasmas, 9 of 10 (90%) xanthogranulomas, 6 of 6 (100%) xanthomas, and 9 of 13 (63%) metastatic renal cell carcinomas were also weakly-to- moderately positive for adipophilin. Expression of adipophilin with a membranous pattern of staining was not seen in any of the other clear cell lesions of the skin, including basal and squamous cell carcinomas, trichilemmomas, clear cell hidradenomas, or balloon cell nevi. Interestingly, a nonspecific granular uptake of anti-adipophilin was seen in adjacent macrophages, keratohyalin granules of epithelial squamous cells, and some tumor cells. Therefore, this anti-adipophilin is suitable for immunostaining formalin-fixed, paraffin-embedded tissue and is helpful in the identification of intracytoplasmic lipids, as seen in sebaceous lesions. It is especially helpful in identifying intracytoplasmic lipid vesicles in poorly differentiated sebaceous carcinomas in challenging cases such as small periocular biopsy specimens.
Of 25 sebaceous carcinomas, 23 (92%) were also labeled with a similar pattern. Additionally, in cases of poorly differentiated sebaceous carcinoma (n=11), in which sebaceous differentiation could not have been reliably interpreted in H&E sections, adipophilin highlighted the sebocytes with a strong membranous labeling of intracytoplasmic lipid droplets in 9 of 11 cases (82%). Moreover, 10 of 10 (100%) xanthelasmas, 9 of 10 (90%) xanthogranulomas, 6 of 6 (100%) xanthomas, and 9 of 13 (63%) metastatic renal cell carcinomas were also weakly-to- moderately positive for adipophilin. Expression of adipophilin with a membranous pattern of staining was not seen in any of the other clear cell lesions of the skin, including basal and squamous cell carcinomas, trichilemmomas, clear cell hidradenomas, or balloon cell nevi. Interestingly, a nonspecific granular uptake of anti-adipophilin was seen in adjacent macrophages, keratohyalin granules of epithelial squamous cells, and some tumor cells. Therefore, this anti-adipophilin is suitable for immunostaining formalin-fixed, paraffin-embedded tissue and is helpful in the identification of intracytoplasmic lipids, as seen in sebaceous lesions. It is especially helpful in identifying intracytoplasmic lipid vesicles in poorly differentiated sebaceous carcinomas in challenging cases such as small periocular biopsy specimens.
Quality
 IVD |  IVD |  IVD |  RUO |
Linkage
Adipophilin Positive Control Slides, Product No. 393S, 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
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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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Mohamed Ali Alabiad et al.
Iranian journal of pathology, 16(2), 162-173 (2021-05-04)
Diagnosis and discrimination of lung adenocarcinoma (LUAD) from lung squamous cell carcinoma (LUSC) is critical to select the appropriate treatment regimen as recently targeted therapies require accurate subtyping of nonsmall-cell lung carcinoma (NSCLCs). There are currently several biomarkers that could
Sarah A Donnell et al.
Journal of cutaneous pathology, 48(10), 1252-1261 (2021-05-06)
We and others have noticed consistent staining of sebaceous glands with PReferentially expressed Antigen in MElanoma (PRAME). We aimed to determine whether PRAME was as sensitive, specific, and interpretable as adipophilin for distinguishing sebaceous neoplasms (SNs) from other neoplasms. Twenty
Daniel A Ostler et al.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 23(4), 567-573 (2010-02-02)
Adipophilin is a monoclonal antibody against a protein on the surface of intracellular lipid droplets, and it was recently shown to be expressed in sebocytes and sebaceous lesions. This study examines adipophilin expression in various sebaceous lesions and other cutaneous
Tze F Lai et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 30(2 Pt 1), 222-225 (2004-02-06)
Sebaceous carcinoma (SC) accounts for 1% to 5.5% of all eyelid malignancies. Diagnosis is often delayed because of its ability to masquerade as other periocular lesions both clinically and histologically. To promote a high index of suspicion among Mohs surgeons
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