Recombinant Human Mesothelin (MSLN), partial (Active)

In Stock
Code CSB-MP015044HUc9
Size $228
Order now
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

  • Activity
    Measured by its binding ability in a functional ELISA. Immobilized MSLN at 2 μg/ml can bind Anti-MSLN rabbit monoclonal antibody, the EC50 of the MSLN protein is 2.657-3.177 ng/ml. Biological Activity Assay

  • Activity
    Measured by its binding ability in a functional ELISA. Immobilized MUC16(CSB-MP704410HU3c7) at 10 μg/ml can bind MSLN, the EC50 is 460.7-662.2 ng/ml. Biological Activity Assay
Have Questions? Leave a Message or Start an on-line Chat

Product Details

Greater than 90% as determined by SDS-PAGE.
Less than 1.0 EU/ug as determined by LAL method.
Measured by its binding ability in a functional ELISA. Immobilized MSLN at 2 μg/ml can bind Anti-MSLN rabbit monoclonal antibody, the EC50 of the MSLN protein is 2.657-3.177 ng/ml.②Measured by its binding ability in a functional ELISA. Immobilized MUC16(CSB-MP704410HU3c7) at 10 μg/ml can bind MSLN, the EC50 is 460.7-662.2 ng/ml.
Target Names
Uniprot No.
Research Area
Alternative Names
CAK 1; CAK1; CAK1 antigen; cleaved form; Megakaryocyte potentiating factor ; Mesothelin; Mesothelin isoform 1 precursor ; MPF; Msln; MSLN_HUMAN; Pre pro megakaryocyte potentiating factor; Pre-pro-megakaryocyte-potentiating factor; SMR; SMRP; Soluble MPF mesothelin related protein
Molecular Characterization
Homo sapiens (Human)
Mammalian cell
Expression Region
Target Protein Sequence
Mol. Weight
59.6 kDa
Protein Length
Partial of isoform 3
Tag Info
N-terminal hFc-tagged
Liquid or Lyophilized powder
Lyophilized from a 0.2 μm filtered PBS, 6% Trehalose, pH 7.4
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

The generation of the recombinant human MSLN protein typically includes the following steps: synthesizing the recombinant plasmid containing the gene encoding the human MSLN protein (296-580aa) along with the N-terminal hFc-tag gene, transforming the recombinant plasmid into mammalian cells, selecting the positive mammalian cells, and culturing the positive mammalian cells for protein expression. After expression, affinity purification is employed to isolate and purify the recombinant MSLN protein from the cell lysate. Denaturing SDS-PAGE is utilized to resolve the resulting recombinant human MSLN protein, revealing a purity level exceeding 90%. The endotoxin of this protein is less than 1.0 EU/ug as determined by the LAL method. Its activity has been validated through the functional ELISA.

Mesothelin (MSLN) is a protein found on the surface of certain cancer cells, including those from mesothelioma, ovarian cancer, and pancreatic cancer [1]. It's often used as a marker to identify these types of tumors [2]. The gene that makes MSLN produces a larger protein that gets split into two smaller ones: Megakaryocytic Potentiating Factor (MPF) and mature MSLN (mMSLN) [3]. In ovarian cancer, MSLN interacts with a protein called CA-125, possibly aiding in the spread of cancer cells [4]. While MSLN levels are high in ovarian cancer, their exact role in tumor growth isn't fully understood [5].

Researchers are studying MSLN as a potential marker and target for treatment in mesothelioma [6]. Some believe MSLN helps cancer cells stick to certain tissues and spread in ovarian cancer [7]. However, because MSLN levels vary in different types of tumors, it's unclear if it directly contributes to cancer development [8]. Still, studies suggest that MSLN might spur cell growth in colorectal cancer and encourage the invasion of mesothelioma cells, indicating it could play a role in cancer progression [6]. Additionally, MSLN seems to influence cell growth in pancreatic cancer by affecting certain proteins involved in cell division [9].

[1] S. Inoue, T. Tsunoda, M. Riku, H. Ito, A. Inoko, H. Murakamiet al., Diffuse mesothelin expression leads to worse prognosis through enhanced cellular proliferation in colorectal cancer, Oncology Letters, 2020.
[2] X. Hou, F. Wang, X. Meng, D. Li, J. Ding, Y. Chenet al., Construction of a 124i-labeled specific antibody for the noninvasive detection of mesothelin-overexpressing tumors, Molecular Pharmaceutics, vol. 19, no. 10, p. 3623-3631, 2022.
[3] J. Zhang, T. Bera, W. Liu, X. Du, C. Alewine, R. Hassanet al., Megakaryocytic potentiating factor and mature mesothelin stimulate the growth of a lung cancer cell line in the peritoneal cavity of mice, Plos One, vol. 9, no. 8, p. e104388, 2014.
[4] T. Hilliard, The impact of mesothelin in the ovarian cancer tumor microenvironment, Cancers, vol. 10, no. 9, p. 277, 2018.
[5] T. Hilliard, B. Kowalski, K. Iwamoto, E. Agadi, Y. Liu, J. Yanget al., Host mesothelin expression increases ovarian cancer metastasis in the peritoneal microenvironment, International Journal of Molecular Sciences, vol. 22, no. 22, p. 12443, 2021.
[6] E. Servais, C. Colovos, L. Rodríguez, A. Bograd, J. Nitadori, C. Simaet al., Mesothelin overexpression promotes mesothelioma cell invasion and mmp-9 secretion in an orthotopic mouse model and in epithelioid pleural mesothelioma patients, Clinical Cancer Research, vol. 18, no. 9, p. 2478-2489, 2012.
[7] B. Wang, J. Kuroiwa, L. He, A. Charalambous, T. Keler, & R. Steinman, The human cancer antigen mesothelin is more efficiently presented to the mouse immune system when targeted to the dec‐205/cd205 receptor on dendritic cells, Annals of the New York Academy of Sciences, vol. 1174, no. 1, p. 6-17, 2009.
[8] X. He, E. Despeaux, T. Stueckle, A. Chi, V. Castranova, C. Dinuet al., Role of mesothelin in carbon nanotube-induced carcinogenic transformation of human bronchial epithelial cells, Ajp Lung Cellular and Molecular Physiology, vol. 311, no. 3, p. L538-L549, 2016.
[9] U. Bharadwaj, M. Li, C. Chen, & Q. Yao, Mesothelin-induced pancreatic cancer cell proliferation involves alteration of cyclin e via activation of signal transducer and activator of transcription protein 3, Molecular Cancer Research, vol. 6, no. 11, p. 1755-1765, 2008.

Customer Reviews and Q&A

 Customer Reviews
Average Rating:
4.0 - 1 reviews

Submit a Review here

Applications : Antigen, Drug related studies

Review: I used CSB-MP015044HUc9 to perform an ELISA experiment with the anti-MSLN antibody, and the EC50 was 1.940-4.024ng/ml, showing good binding activity. Subsequently, it was used as an antigen for immunization, and the immune effect was very good. When used for ELISA screening, the antigen coating effect is also good, stable, and has good repeatability.

By Anonymous

Target Background

Membrane-anchored forms may play a role in cellular adhesion.; Megakaryocyte-potentiating factor (MPF) potentiates megakaryocyte colony formation in vitro.
Gene References into Functions
  1. Elevated plasma MSLN level is related with epithelial ovarian cancer. PMID: 30319054
  2. We have demonstrated that a rising serum mesothelin is a sensitive marker of progression in the follow up of patients with MPM. PMID: 29454314
  3. we engineered variants of the fibronectin type III domain (Fn3) non-antibody protein scaffold to bind to mesothelin with high affinity, using directed evolution and yeast surface display PMID: 29738555
  4. Our goal was to stimulate antitumor immunity by combining SS1P or LMB-100 with anti-CTLA-4. We constructed a BALB/c breast cancer cell line expressing human mesothelin (66C14-M), which was implanted in one or two locations. SS1P or LMB-100 was injected directly into established tumors and anti-CTLA-4 administered i.p. In mice with two tumors, one tumor was injected with immunotoxin and the other was not. PMID: 28674083
  5. Mesothelin-targeted immunotoxin RG7787 increases pancreatic cancer cell sensitivity to taxane-mediated killing by increasing taxane-mediated microtubule stability and priming cells for apoptosis by decreasing levels of the pro-survival factor Mcl-1. PMID: 27999204
  6. RG7787 plus nab-paclitaxel is very active against primary human mesothelioma cells in vitro as well as in vivo, with serum mesothelin levels correlating with tumor response. These results indicate that this combination could be useful for treating patients with mesothelioma PMID: 27635089
  7. Efficient growth suppression in pancreatic cancer PDX model by fully human anti-mesothelin CAR-T cells. PMID: 28929447
  8. Mesothelin/mucin 16 signaling in activated portal fibroblasts regulates cholestatic liver fibrosis.( PMID: 28287406
  9. MiR-21-5p is suggested as novel regulator of MSLN with a possible functional role in cellular growth. PMID: 28125734
  10. we report herein that high tumor mesothelin expression predicts a shorter PFS and OS in EOC patients and demonstrates that serum mesothelin predicts local tumor mesothelin expression. PMID: 28160193
  11. We provide new evidence for the role of MSLN in EMT regulation, tumorigenesis and metastasis. Knockdown of MSLN led to mesenchymal to epithelial transition and less aggressive behavior of lung carcinoma and mesothelioma cells. PMID: 28288645
  12. MSLN expression increases cell migration and invasion in vitro. PMID: 27422997
  13. SMRP but not FBLN3 has a role in pleural effusions in in malignant pleural mesothelioma PMID: 28314308
  14. High mesothelin expression is associated with malignant pleural mesothelioma. PMID: 27646775
  15. Calretinin, D2-40 and mesothelin are aberrantly expressed in a proportion of CRC cases. PMID: 27062033
  16. Our results showed that IMP3 immunostaining has a higher sensitivity and specificity than mesothelin for the diagnosis of pancreatic ductal adenocarcinoma. IMP3 and mesothelin may be useful markers in distinguishing neoplastic from reactive lesions of the pancreas in instances where this is impossible by morphology alone in surgical pathology practice. PMID: 26874572
  17. Results indicate a specific mesothelin-driven tumor uptake of targeted 89zirconium-labeled antibody which visualizes mesothelin expressing pancreatic cancer in real time. PMID: 26536664
  18. Data indicate that triple-negative breast cancer (TNBC) showed the highest amplification rate (42%) in the basal-like 1 subtype. PMID: 26172299
  19. There was a trend toward elevation of SMRP values in healthy individuals exposed to asbestos compared to those without exposure. Within asbestosis cases, those with higher profusion scores had higher SMRP values than those with lower profusion scores. PMID: 26188910
  20. High mesothelin expression was strongly associated with mutant KRAS/wild-type EGFR and poor prognosis in advanced lung cancer. PMID: 26028668
  21. findings replicate association between rs1057147 and soluble mesothelin related peptide(SMRP)levels; SMRP performance as diagnostic biomarker for malignant pleural mesothelioma improved by considering genotype rs1057147; this polymorphism most likely affects a binding site for miR-611 PMID: 25436799
  22. Expression of mesothelin was observed in 42.3% of patients with triple negative breast cancer. PMID: 25776500
  23. Patients with mesothelin-positive triple negative breast carcinomas (TNBC) were older than patients with mesothelin-negative TNBC, developed more distant metastases with a shorter interval, and had significantly lower overall and disease-free survival. PMID: 25506917
  24. Delivery of mesothelin-targeted CAR T cells eradicates tumors in mice with pleural malignancies. PMID: 25378643
  25. Pleural fluid mesothelin may serve as a marker for pleural malignant mesothelioma. PMID: 25505814
  26. Patients with colon cancer had significantly higher mesothelin serum levels than the control groups. PMID: 25477701
  27. Mesothelin expression is associated with poor outcomes in breast cancer.Mesothelin is a prognostic breast tumor marker whose expression is highly enriched in triple negative breast cancer tumors. PMID: 25193277
  28. A serum mesothelin level is a prognostic indicator for patients with malignant mesothelioma in routine clinical practice. PMID: 25227779
  29. Both the serum CA125(meso) level and the ratio of the serum CA125(mesothelin) to CA125 levels (CA125(mesothelin) /CA125) were significantly higher in patients with EOC. PMID: 25197000
  30. Serum IGFBP2 and MSLN are weak diagnostic classifiers individually, but may be useful in a diagnostic biomarker panel for pancreatic cancer. PMID: 24308545
  31. MSLN-silencing caused decreased proliferation rate and reduced invasive capacity and sphere formation in MSLN-overexpressing Mero-14 cells. PMID: 24465798
  32. Being negative/focally positive for mesothelin expression was associated with longer postoperative survival than positive expression in patients with cholangiocellular carcinoma. Mesothelin positivity was a predictor of short postoperative survival. PMID: 23701154
  33. Our findings suggest that MLSN can be used as a marker of neoplastic transformation of epithelial cells in pancreatic mucinous cysts. PMID: 25125620
  34. MSLN expression in patients with early-stage lung adenocarcinoma is associated with increased risk of recurrence and reduced overall survival. PMID: 24334761
  35. These data provides evidence for the use of mesothelin as an immunogen for tumour-specific T cell response. PMID: 24520352
  36. Mesothelin provokes lymphatic invasion of colorectal adenocarcinoma. PMID: 23512344
  37. In the gastric cancer tissues, C-ERC/mesothelin expression was associated with lymphatic invasion. N-ERC/mesothelin was secreted into the supernatants of gastric cancer cell lines, but does not appear to be a useful serum marker of gastric cancer. PMID: 24146039
  38. Use of S100P and mesothelin in cytologically borderline cases can increase the diagnostic accuracy for pancreatic adenocarcinoma. PMID: 21538952
  39. Data indicate that biochemical markers significantly associated with mesothelioma were hyaluronan, N-ERC/mesothelin and syndecan-1. PMID: 23991032
  40. PE-SMRP adds some clinical information in the work-up of patients with a PE of unknown origin. PMID: 23873013
  41. Mesothelin expression was identified in 34% of patients with triple receptor negative breast cancer. PMID: 23810431
  42. addition of YKL-40 may improve the specificity of mesothelin measurements alone for detecting patients with multiple myeloma PMID: 24324091
  43. These data suggest that in difficult diagnostic cases both PAX2 and mesothelin immunohistochemical study may be useful in discriminating between PMRCC and primary pancreatic carcinoma. PMID: 24344503
  44. SMRP could improve CYFRA 21-1 antigen and carcinoembryonic antigen (CEA) accuracy in the differential diagnosis of malignant pleural mesothelioma. PMID: 23532816
  45. Mesothelin binding to CA125/MUC16 promotes pancreatic cancer cell motility and invasion via MMP-7 activation. PMID: 23694968
  46. Mesothelin, megakaryocyte potentiating factor and osteopontin are expressed in malignant mesothelioma [review] PMID: 22835614
  47. MSLN overexpression promoted the invasive potential of MCF-7 cells through ERK1/2-dependent upregulation of MMP-9; this association may have contributed to metastasis of MCF-7 cells in vivo. PMID: 23321167
  48. Data indicate that binding of mesothelin to CA125 does not alter the measurement of mesothelin for the detection of malignant mesothelioma (MM). PMID: 23357461
  49. The mesothelin expression promotes resistance to certain chemotherapy drugs such as TNF-alpha, paclitaxel, and a combination of platinum and cyclophosphamide. PMID: 22721387
  50. SMRP was lower in healthy subjects than in subjects with malignant tumors, asbestos-related pleural lesions, and other benign diseases PMID: 23277285

Show More

Hide All

Involvement in disease
Antibodies against MSLN are detected in patients with mesothelioma and ovarian cancer.
Subcellular Location
Cell membrane; Lipid-anchor, GPI-anchor. Golgi apparatus.; [Megakaryocyte-potentiating factor]: Secreted.; [Isoform 3]: Secreted.
Protein Families
Mesothelin family
Tissue Specificity
Expressed in lung. Expressed at low levels in heart, placenta and kidney. Expressed in mesothelial cells. Highly expressed in mesotheliomas, ovarian cancers, and some squamous cell carcinomas (at protein level).
Database Links

HGNC: 7371

OMIM: 601051

KEGG: hsa:10232

STRING: 9606.ENSP00000372313

UniGene: Hs.408488

icon of phone
Call us
301-363-4651 (Available 9 a.m. to 5 p.m. CST from Monday to Friday)
icon of address
7505 Fannin St., Ste 610, Room 7 (CUBIO Innovation Center), Houston, TX 77054, USA
icon of social media
Join us with

Subscribe newsletter

Leave a message

* To protect against spam, please pass the CAPTCHA test below.
CAPTCHA verification
© 2007-2024 CUSABIO TECHNOLOGY LLC All rights reserved. 鄂ICP备15011166号-1
Place an order now

I. Product details


II. Contact details


III. Ship To


IV. Bill To