🧬 CD68 Antibody

Reliable Solutions for Macrophage Detection and Tumor Microenvironment Research.

🔍 Overview of CD68 Products

CD68 is one of the most widely used macrophage markers, particularly in studies involving inflammation, cancer immunology, tissue remodeling, and the tumor microenvironment.

Biorbyt provides a comprehensive range of CD68 research tools, including:

• Monoclonal and polyclonal CD68 antibodies
• Recombinant monoclonal antibodies for high reproducibility
• FITC-conjugated antibodies for direct immunofluorescence
• IHC-validated CD68 antibodies for tissue staining
• Reagents for macrophage characterization

These tools support accurate detection of macrophages across IHC, IF, FC, WB, and ELISA workflows.

 What is CD68?

CD68 is a lysosomal glycoprotein highly expressed in monocytes and macrophages, widely used as a pan-macrophage marker in immunology and pathology.

It is primarily localized in lysosomes and endosomes, where it is associated with phagocytosis and intracellular processing. CD68 is commonly detected in:

• Tissue-resident macrophages (e.g., microglia, Kupffer cells)
• Circulating monocytes
• Activated macrophages in immune responses

Because of its stable and abundant expression, CD68 is widely used to identify macrophage populations in tissues and cell-based systems.

👉 Key insight: CD68 is best suited for detecting total macrophage presence, rather than functional subtypes such as M1 or M2 macrophages.

CD68 in Tumor Microenvironment and Inflammation Research

To better understand how CD68 is used in research, it is important to consider its role in disease contexts such as cancer and inflammation.

 Tumor microenvironment (TME)

CD68 is widely used to quantify tumor-associated macrophages (TAMs), which regulate:

• Tumor progression
• Immune suppression
• Angiogenesis

CD68-based IHC staining is commonly used to evaluate macrophage density and spatial distribution within tumor tissues.

 Inflammation and immune response

In inflammatory models, CD68 helps assess:

• Macrophage recruitment
• Chronic inflammation levels
• Tissue remodeling and fibrosis

Increased CD68 expression is associated with enhanced immune activation and inflammatory burden.

⚠️ Key limitation: CD68 does not distinguish between M1 macrophages or M2 macrophages. 👉 It should be combined with markers such as CD163 or CD206 for deeper immune profiling.

How to Choose the Right CD68 Antibody

Selecting the appropriate CD68 antibody depends on your experimental system and research objective:

• Use IHC-validated antibodies for macrophage localization in tissue samples
• Choose recombinant monoclonal antibodies for high reproducibility and consistency
• Use conjugated antibodies for direct immunofluorescence workflows
• Combine CD68 with CD163/CD206 for macrophage polarization studies

👉 Key takeaway: CD68 is ideal for quantifying macrophage infiltration, but additional markers are required for functional analysis.

 Recommended CD68 Antibody

Biorbyt offers a comprehensive selection of CD68 antibodies for macrophage detection, including citation-supported antibodies, recombinant monoclonal antibodies, and conjugated formats.

SKU	Product Name	Key Advantage	Applications	Size	Price
orb197999	CD68 antibody  (Citation supported)	Broad application coverage	ELISA, ICC, IF, IHC-P, WB	100 μg	$280
orb1183943	CD68 Recombinant Rabbit Monoclonal Antibody	High sensitivity & consistency	FC, IF, IHC-Fr, IHC-P	25 μl	$180
orb1520128	CD68 Mouse Recombinant Monoclonal Antibody	Optimized for mIF & human tissue	FC, IF, IHC	10 μl	$250
orb388936	CD68 Antibody  (Citation supported)	Strong performance across applications	FC, IF, IHC, WB	20 μg	$370
orb15315	CD68 Rabbit Polyclonal Antibody (FITC)	Direct fluorescence detection	IF	100 μl	$500

 CD68 vs CD163 vs CD206: Macrophage Marker Comparison

Understanding macrophage markers is essential for interpreting immune responses.

Marker	Specificity	Best Use	Key Advantage
CD68	Total macrophages	Macrophage identification (IHC)	Quantifies total macrophage infiltration
CD163	M2 macrophages	Tumor-associated macrophages (TAMs)	Indicates immunosuppressive macrophages
CD206	M2 macrophages	Macrophage polarization studies	Sensitive marker for M2 phenotype

👉 Best practice: Combine CD68 with CD163 or CD206 to distinguish macrophage abundance vs function.

⭐ Why Choose Biorbyt CD68 Products?

• ✔ Coverage of multiple CD68 antibody formats
• ✔ Citation-supported antibodies
• ✔ Validated for IHC, IF, FC, WB, ELISA
• ✔ Suitable for cancer and inflammation research
• ✔ Reliable performance and technical support

❓ FAQ – CD68 Research

What is CD68?
CD68 is a macrophage marker protein used to identify and quantify macrophages in tissues and cell-based assays.

What is CD68 a marker for?
CD68 is a marker for macrophages and monocytes, widely used in immunology and pathology.

What is CD68 used for in IHC?
CD68 is commonly used in immunohistochemistry (IHC) to detect macrophage infiltration in tissues.

Is CD68 a macrophage marker?
Yes, CD68 is one of the most widely used pan-macrophage markers.

What is the difference between CD68 and CD163?
CD68 detects total macrophages, while CD163 is more specific for M2 macrophages.

What are tumor-associated macrophages (TAMs)?
TAMs are macrophages in tumors. CD68 is used to quantify their abundance.

Is CD68 specific for M1 or M2 macrophages?
No, CD68 does not distinguish between macrophage subtypes.

Which CD68 antibody should I choose?
• Multi-application → orb197999、orb388936
• High reproducibility → orb1183943
• mIF / tissue → orb1520128
• Direct IF → orb15315