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AB182785

Anti-MASPIN antibody

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(7 Publications)

Rabbit Polyclonal MASPIN antibody. Suitable for WB, IHC-P and reacts with Mouse, Human samples. Cited in 7 publications. Immunogen corresponding to Recombinant Full Length Protein corresponding to Human SERPINB5.

View Alternative Names

PI5, SERPINB5, Serpin B5, Maspin, Peptidase inhibitor 5, PI-5

4 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MASPIN antibody (AB182785)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MASPIN antibody (AB182785)

Immunohistochemistry of paraffin-embedded Human esophagus cancer tissue using ab182785 at dilution 1/60,on the right is trested with the fusion protein

Western blot - Anti-MASPIN antibody (AB182785)
  • WB

Lab

Western blot - Anti-MASPIN antibody (AB182785)

Lanes 1 - 4 : Merged signal (red and green). Green - ab182785 observed at 42 kDa. Red - loading control ab7291 (Mouse anti-Alpha Tubulin [DM1A]) observed at 55 kDa.

ab182785 was shown to react with MASPIN in wild-type cells in Western blot with loss of signal observed in SERPINB5 knockout cell line ab264750 (SERPINB5 knockout cell lysate ab258659). Wild-type and SERPINB5 knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with ab182785 and ab7291 (Mouse anti-Alpha Tubulin [DM1A]) overnight at 4 °C at a 1/1000 dilution and a 1/20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1/20000 dilution for 1 h at room temperature before imaging.

All lanes:

Western blot - Anti-MASPIN antibody (ab182785) at 1/1000 dilution

Lane 1:

Wild-type HeLa cell lysate at 20 µg

Lane 2:

SERPINB5 knockout HeLa cell lysate at 20 µg

Lane 3:

HaCaT cell lysate at 20 µg

Lane 4:

Caco-2 cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-irdye-800cw-preadsorbed-ab216773'>ab216773</a>) at 1/20000 dilution

Predicted band size: 42 kDa

Observed band size: 42 kDa

false

Western blot - Anti-MASPIN antibody (AB182785)
  • WB

Supplier Data

Western blot - Anti-MASPIN antibody (AB182785)

All lanes:

Western blot - Anti-MASPIN antibody (ab182785) at 1/1000 dilution

Lane 1:

Mouse esophagus tissue lysate at 40 µg

Lane 2:

Human cervical cancer tissue lysate at 40 µg

Secondary

All lanes:

Goat anti Rabbit IgG at 1/10000 dilution

Predicted band size: 42 kDa

false

Exposure time: 13s

Western blot - Anti-MASPIN antibody (AB182785)
  • WB

CiteAb

Western blot - Anti-MASPIN antibody (AB182785)

Western Blotting using Anti-MASPIN antibody, ab182785. Publication image from Zhang, P. et al., 2020, J Biomed Sci, 32005234. Legend direct from paper.

SERPINB5 is indispensable for TRIM21-mediated GMPS–TP53 repression after radiation. a Co-immunoprecipitation following western blotting in NPC cells with SERPINB5–HA and TRIM21–MYC overexpression. b Immunofluorescence staining analysis of SERPINB5 and TRIM21 in NPC cells. c Western blot detection of SERPINB5 expression in normal NP69 cell line and in NPC cell lines. d Western blot detection of GMPS and TP53 in NPC cells with TRIM21 GOF or SERPINB5 LOF. e Co-immunoprecipitation using anti-HA antibody in NPC cells with SERPINB5–HA and GMPS–FLAG overexpression. f Immunofluorescence staining to detect the co-localization of GMPS and SERPINB5 in NPC cells with or without ionizing radiation. g GMPS expression in immune-purified protein by anti-HA antibody from NPC cells with or without TRIM21 LOF. h GMPS expression in immune-purified protein by anti-MYC antibody from NPC cells with or without SERPINB5 LOF. i GMPS expression in NPC cells with TRIM21 or SERPINB5 overexpression. j Immunofluorescence staining of overexpressed GMPS and ubiquitin in HONE1 cells with or without ionizing radiation. The localization of GMPS and was evaluated in condition of SERPINB5 or TRIM21 LOF. For the co-immunoprecipitation assay, MG132 was added into the cell medium before cell harvesting to avoid GMPS degradation. *P < 0.05, **P < 0.01, ***P < 0.001

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Human

Applications

IHC-P, WB

applications

Immunogen

Recombinant Full Length Protein corresponding to Human SERPINB5.

P36952

Reactivity data

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
pH: 7.4 Preservative: 0.05% Sodium azide Constituents: PBS, 50% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

MASPIN also known as SERPINB5 is a non-inhibitory serine protease inhibitor with a mass of approximately 42 kDa. It functions mechanically to regulate cell adhesion migration apoptosis and angiogenesis. MASPIN localizes mainly in the cytoplasm and nucleus and expresses predominantly in epithelial cells including those in the mammary gland prostate and keratinocytes in the skin. It acts as a tumor suppressor and researchers often use immunohistochemistry (IHC) to study its expression patterns in various tissues.
Biological function summary

MASPIN influences apoptosis and cell motility playing a critical role in tumor suppression. It does not form part of a complex but interacts directly with extracellular matrix components. MASPIN can inhibit angiogenesis by reducing the proliferation and migration of endothelial cells. Scientists have noted its role in maintaining normal cell architecture and inhibiting tumor cell invasion.

Pathways

Researchers place MASPIN in important signaling networks impacting cancer progression and metastasis. It participates in the PI3K/AKT pathway thereby influencing cell growth and survival. MASPIN also intersects with TGF-β signaling and related proteins like SMAD which mediate growth arrest and apoptosis. By altering these pathways MASPIN helps modulate responses to cellular stress and inhibit lethal growth in cancer cells.

MASPIN often associates with breast and prostate cancers. Its expression inversely correlates with tumor progression suggesting a protective role. MASPIN's interaction with proteins like p53 highlights its contribution to tumor suppression. Abnormal MASPIN presence links to aggressive disease phenotypes making it a potential biomarker for prognostic evaluation in oncology.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Tumor suppressor. It blocks the growth, invasion, and metastatic properties of mammary tumors. As it does not undergo the S (stressed) to R (relaxed) conformational transition characteristic of active serpins, it exhibits no serine protease inhibitory activity.
See full target information SERPINB5

Publications (7)

Recent publications for all applications. Explore the full list and refine your search

World journal of gastroenterology 31:103412 PubMed40124262

2025

Inhibition of the SERPINB5/HSP90AA1 axis restrains the proliferation and invasion of rectal cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Ze-Song Meng,Ji-Tao Hu,Hao Wu,Bao-Kun Li

The Journal of cell biology 223: PubMed38477878

2024

DPM1 modulates desmosomal adhesion and epidermal differentiation through SERPINB5.

Applications

Unspecified application

Species

Unspecified reactive species

Maitreyi Rathod,Henriette Franz,Vivien Beyersdorfer,Marie-Therès Wanuske,Karen Leal-Fischer,Pauline Hanns,Chiara Stüdle,Aude Zimmermann,Katarzyna Buczak,Camilla Schinner,Volker Spindler

Environmental toxicology 39:708-722 PubMed37665156

2023

FOXA2 suppresses gallbladder carcinoma cell migration, invasion, and epithelial-mesenchymal transition by targeting SERPINB5.

Applications

Unspecified application

Species

Unspecified reactive species

Lingju Hong,Mingyuan Chen,Maotuan Huang,Weihong Chen,Xiahenazi Abudukeremu,Feifei She,Yanling Chen

Cell reports 33:108348 PubMed33147469

2020

Lipid Droplets in Brown Adipose Tissue Are Dispensable for Cold-Induced Thermogenesis.

Applications

Unspecified application

Species

Unspecified reactive species

Chandramohan Chitraju,Alexander W Fischer,Robert V Farese,Tobias C Walther

Frontiers in cell and developmental biology 8:573820 PubMed33195208

2020

Tumor Suppressive Maspin-Sensitized Prostate Cancer to Drug Treatment Through Negative Regulating Androgen Receptor Expression.

Applications

Unspecified application

Species

Unspecified reactive species

Sijie Tang,Xueqi Lian,Jiajia Jiang,Huiying Cheng,Jiaqian Guo,Can Huang,Hong Meng,Xiaohua Li

Journal of biomedical science 27:30 PubMed32005234

2020

TRIM21-SERPINB5 aids GMPS repression to protect nasopharyngeal carcinoma cells from radiation-induced apoptosis.

Applications

Unspecified application

Species

Unspecified reactive species

Panpan Zhang,Xiaomin Li,Qiuping He,Lulu Zhang,Keqing Song,Xiaojing Yang,Qingmei He,Yaqin Wang,Xiaohong Hong,Jun Ma,Na Liu

Oncology letters 19:2621-2628 PubMed32218812

2020

Maspin inhibits MCF-7 cell invasion and proliferation by downregulating miR-21 and increasing the expression of its target genes.

Applications

Unspecified application

Species

Unspecified reactive species

Shao-Xin Huang,Wen-Yan Fan,Ling Wang,Hui Liu,Xin Wang,Hao Zhao,Wen-Bin Jiang
View all publications

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