Anti-Mouse MAdCAM-1 (MECA-89) – Purified in vivo GOLDTM Functional Grade

Anti-Mouse MAdCAM-1 (MECA-89) – Purified in vivo GOLDTM Functional Grade

Product No.: M1420

[product_table name="All Top" skus="M1400"]

- -
- -
Clone
MECA-89
Target
MADCAM-1
Formats AvailableView All
Product Type
Hybridoma Monoclonal Antibody
Alternate Names
Mucosal addressin cell adhesion molecule-1
Isotype
Rat IgG2a κ
Applications
B
,
FA
,
FC
,
IF
,
IHC
,
IP
,
WB

- -
- -
Select Product Size
- -
- -

Antibody Details

Product Details

Reactive Species
Mouse
Host Species
Rat
Recommended Isotype Controls
Recommended Isotype Controls
Recommended Dilution Buffer
Immunogen
Mouse mesenteric and peripheral lymph node cells
Product Concentration
≥ 5.0 mg/ml
Endotoxin Level
≤ 1.0 EU/mg as determined by the LAL method
Purity
≥95% by SDS Page
≥95% monomer by analytical SEC
Formulation
This monoclonal antibody is aseptically packaged and formulated in 0.01 M phosphate buffered saline (150 mM NaCl) PBS pH 7.2 - 7.4 with no carrier protein, potassium, calcium or preservatives added. Due to inherent biochemical properties of antibodies, certain products may be prone to precipitation over time. Precipitation may be removed by aseptic centrifugation and/or filtration.
State of Matter
Liquid
Product Preparation
Functional grade preclinical antibodies are manufactured in an animal free facility using in vitro cell culture techniques and are purified by a multi-step process including the use of protein A or G to assure extremely low levels of endotoxins, leachable protein A or aggregates.
Storage and Handling
Functional grade preclinical antibodies may be stored sterile as received at 2-8°C for up to one month. For longer term storage, aseptically aliquot in working volumes without diluting and store at ≤ -70°C. Avoid Repeated Freeze Thaw Cycles.
Regulatory Status
Research Use Only
Country of Origin
USA
Shipping
2 - 8°C Wet Ice
Additional Applications Reported In Literature ?
FA
IHC
IF
IP
WB
FC
B
Each investigator should determine their own optimal working dilution for specific applications. See directions on lot specific datasheets, as information may periodically change.

Description

Description

Specificity
MECA-89 activity is directed against mouse MAdCAM-1.
Background
MAdCAM-1 is a cell adhesion leukocyte receptor expressed by mucosal venules that helps direct lymphocyte traffic into mucosal tissues and regulates the passage and retention of leukocytes1, 2. MAdCAM-1 binds integrin receptor α4β7 and L-selectin2, 3, 4. Two alternatively spliced isoforms of MAdCAM-1 exist5, both of which are capable of binding α4β72.

MECA-89 was generated by immunizing Wistar rats with endothelial cells isolated from BALB/c mesenteric and peripheral lymph nodes 6. Immunohistological screening of hybridomas yielded two mAbs, MECA-367 and MECA-89, that stain high endothelial venules (HEVs) in mucosal lymphoid organs and Peyer’s patches, but not peripheral lymph nodes (axillary, brachial, popliteal, and inguinal). Immunofluorescence staining of high endothelial cells shows that both MECA-367 and MECA-89 react with antigens on the cell surface. The epitopes for MECA-367 and MECA-89 are distinct. MECA-367 recognizes the N-terminal immunoglobulin domain of MAdCAM-l, and MECA-89 recognizes the second immunoglobulin domain 4,5.

MECA-89 reacts with the same vessels as MECA-367 and binds to isolated MECA-367 antigen; however, unlike MECA-367 it has no effect on lymphocyte binding 6. Additionally, MECA-89 has no effect on MAdCAM-1 binding to α4β7 in vitro 7, but L-selectin dependent adhesion is lost in the presence of MECA-89 4. Additionally, MECA-89 has no significant effect on activated cells, but all interactions are inhibited following subsequent injection of anti-α4 Fab fragments 4. In vivo, MECA-89 inhibits L-selectin-dependent rolling but not direct α4β7-dependent attachment of Mn2+ activated lymphocytes.
Antigen Distribution
MAdCAM-1 is a cell surface glycoprotein selectively expressed on high endothelial venules of mucosal lymphoid organs and Peyer’s patches as well as lamina propria venules.
Ligand/Receptor
Integrin a4ß7, CD62L
NCBI Gene Bank ID
UniProt.org
Research Area
Cell Adhesion
.
Cell Biology
.
Immunology

Leinco Antibody Advisor

Powered by AI: AI is experimental and still learning how to provide the best assistance. It may occasionally generate incorrect or incomplete responses. Please do not rely solely on its recommendations when making purchasing decisions or designing experiments.

Clone MECA-89 is a rat monoclonal antibody targeting mouse MAdCAM-1, commonly employed in various in vivo applications in mice. Here are some of the primary uses:

Common In Vivo Applications of Clone MECA-89

  1. Depletion Studies: MECA-89 is used to block or deplete MAdCAM-1 function, which helps in understanding its role in immune cell trafficking, particularly in mucosal immunity and lymphoid tissues.

  2. Immune Cell Trafficking Research: By blocking MAdCAM-1, researchers can study the homing of lymphocytes to mucosal sites, which is crucial for understanding immune responses and diseases like inflammatory bowel disease.

  3. Flow Cytometry: MECA-89 is used in flow cytometry to identify and analyze cells expressing MAdCAM-1, providing insights into immune cell populations and their interactions.

  4. Immunohistochemistry (IHC): This antibody is utilized in IHC to localize MAdCAM-1 expression in tissues, facilitating the study of its role in various pathological conditions.

  5. Western Blotting: MECA-89 is applied in Western blotting to detect MAdCAM-1 protein expression levels in different samples, aiding in the analysis of its function and regulation.

Commonly used antibodies or proteins in the literature used alongside MECA-89 (an anti-MAdCAM-1 antibody) include:

  • MECA-367: Another monoclonal antibody targeting MAdCAM-1, but recognizing a different epitope (the N-terminal Ig domain), whereas MECA-89 binds the second Ig domain. MECA-367 blocks α4β7-dependent binding in vitro, while MECA-89 typically does not.
  • Antibodies against α4β7 integrin: Since MAdCAM-1 is the main ligand for α4β7, anti-α4β7 antibodies are commonly used in combination studies to investigate their interactions in lymphocyte homing and mucosal immunity.
  • MECA-79: Recognizes the peripheral node addressin (PNAd), a carbohydrate epitope on high endothelial venules important for L-selectin-mediated homing. Used to distinguish between mucosal (MAdCAM-1) and peripheral node (PNAd) vascular addressins in tissue or immune cell trafficking studies.
  • Antibodies against CD62L (L-selectin): Since MAdCAM-1 is also a ligand for L-selectin, anti-CD62L antibodies are used to examine L-selectin-dependent interactions in trafficking studies.
  • Other anti-adhesion molecule antibodies: Antibodies targeting VCAM-1 or ICAM-1 are sometimes used as controls or for comparison, because these are other important vascular adhesion molecules studied in the context of immune cell migration.

Summary Table: Common Antibodies/Proteins Used with MECA-89

Antibody/ProteinTargetUse Case with MECA-89Key Reference[Idx]
MECA-367MAdCAM-1 (N-term)Epitope distinction, competitive/blocking studies
anti-α4β7 integrinα4β7 integrinLigand-receptor interaction studies
MECA-79PNAd (L-selectin ligand)Distinguishing mucosal vs. peripheral addressins
anti-CD62LL-selectin (CD62L)Studies on L-selectin-dependent lymphocyte homing
anti-VCAM-1/ICAM-1VCAM-1, ICAM-1Comparative adhesion molecule functional studies

These combinations allow detailed dissection of vascular addressin and integrin roles in tissue-specific lymphocyte homing and inflammation, and are well established in immunology literature. The selection depends on the research focus (e.g., mucosal vs. peripheral lymphoid tissues, integrin blocking vs. mapping addressin expression).

Key findings from scientific literature citing clone MECA-89 focus primarily on its use as a monoclonal antibody tool for immunological and histological studies, particularly in identifying and characterizing the expression and function of MAdCAM-1 (Mucosal Addressin Cell Adhesion Molecule-1) in mouse tissue.

Essential context and supporting details:

  • MECA-89 is a rat monoclonal antibody that specifically binds to mouse MAdCAM-1, a key adhesion molecule expressed on high endothelial venules (HEVs) of mucosal lymphoid tissues.
  • The antibody is extensively cited for its role in defining the distribution of MAdCAM-1 and facilitating the study of lymphocyte homing and endothelial cell biology in the gut- and mucosa-associated lymphoid tissues.
  • Initial reports using the MECA-89 clone, along with MECA-367, characterized MAdCAM-1 as a selective marker of mucosal HEVs and described its essential function in lymphocyte migration and immune organization within secondary lymphoid organs of the gut.
  • Many studies have relied on MECA-89 for immunohistological staining to:
    • Map MAdCAM-1 in healthy and inflamed tissues
    • Investigate mechanisms of lymphocyte trafficking
    • Assess developmental and pathological changes in lymphoid tissues

Additional relevant information:

  • Some research has used MECA-89 to block MAdCAM-1 function in vivo, allowing direct study of the physiological and pathological consequences of disrupting lymphocyte homing to mucosal sites, including models of inflammation and autoimmune disorders.
  • The consistent, specific staining pattern achieved with MECA-89 has helped clarify the role of MAdCAM-1 in mucosal immunity, lymphoid tissue organogenesis, and interactions between lymphoid and endothelial cells.
  • MECA-89 is widely employed as a gold-standard antibody for studying MAdCAM-1 in murine models by both immunofluorescence and flow cytometry.

In summary, citations of clone MECA-89 in scientific literature emphasize its importance as a research tool for understanding MAdCAM-1-mediated immune processes in mice, with applications spanning basic immunology, lymphoid tissue development, and disease models.

The dosing regimens of clone MECA-89, an anti-Mouse MAdCAM-1 antibody, vary across different mouse models depending on several factors, including the specific disease context, pharmacokinetic parameters, and intended pharmacodynamic effects. Unfortunately, direct and detailed information on MECA-89 dosing regimens in recent literature is limited, and most information is model-dependent, suggesting that dosages are tailored to the specific requirements of each study.

In general, dosing regimens for antibodies in mouse models can be influenced by factors such as the target of the antibody, the disease being studied, the route of administration, and the frequency of dosing. For example, other antibodies used in mouse models often involve intraperitoneal or intravenous injections, with dosages ranging from micrograms to milligrams per mouse, depending on the application and the model used.

While specific details for MECA-89 are not readily available, understanding the factors that influence dosing for similar antibodies can help in designing experiments. However, without specific data on MECA-89, researchers would need to rely on general principles or conduct preliminary studies to determine optimal dosages for their particular models.

References & Citations

1. https://www.uniprot.org/uniprotkb/Q61826/entry
2. Schiffer SG, Day E, Latanision SM, et al. Biochem Biophys Res Commun. 216(1):170-176. 1995.
3. Berlin C, Berg EL, Briskin MJ, et al. Cell. 74(1):185-195. 1993.
4. Bargatze RF, Jutila MA, Butcher EC. Immunity. 3(1):99-108. 1995.
5. Briskin MJ, McEvoy LM, Butcher EC. Nature. 363(6428):461-464. 1993.
6. Streeter PR, Berg EL, Rouse BT, et al. Nature. 331(6151):41-46. 1988.
7. Nakache M, Berg EL, Streeter PR, et al. Nature. 337(6203):179-181. 1989.
B
FA
Flow Cytometry
IF
IHC
Immunoprecipitation Protocol
General Western Blot Protocol

Certificate of Analysis

- -
- -

Formats Available

- -
- -
Disclaimer AlertProducts are for research use only. Not for use in diagnostic or therapeutic procedures.