• USA Home
  • L4544 - Laminin from human fibroblasts

L4544 Sigma-Aldrich

Laminin from human fibroblasts

cell culture derived, liquid, sterile-filtered



Related Categories Apoptosis and Cell Cycle, Attachment Factors, Biochemicals and Reagents, Cell Biology, Cell Signaling and Neuroscience,
Quality Level   200
biological source   human fibroblasts
sterility   sterile-filtered
form   liquid
packaging   pkg of 100 μL
application(s)   cell culture | mammalian: suitable
surface coverage   1‑2 μg/cm2
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... LAMB1(3912)



Laminin from human fibroblasts has been used:
•  in coating six-well plates for wound healing assay
• as a substrate in cell adhesion and spreading assay
•  for differentiation of human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs) toward dopaminergic neurons
• in corneal endothelial cell wound healing (migration) assay and corneal endothelial cell barrier assay

Biochem/physiol Actions

Laminin proteins are integral components of structural scaffolding in animal tissues. They associate with type IV collagen via entactin and perlecan and bind to cell membranes through integrin receptors, dystroglycan glycoprotein complexes and Lutheran blood group glycoproteins. Laminin has active domains for collagen binding, cell adhesion, heparin binding, and neurite outgrowth fragment.


Laminin is an extracellular matrix multidomain trimeric glycoprotein, and is the main non-collagenous component of basal lamina that supports adhesion, proliferation and differentiation. Laminin is composed of both A, B1 and B2 chains, which are connected by many disulfide bonds. This laminin product is produced by human fibroblasts and epithelial cells in a co-culture system and then purified biochemically.


It is recommended to store this product at -70°C, where it will remain stable for two years.

Preparation Note

This product is supplied at a concentration of 0.5 mg/mL in TBS. Thaw this solution slowly before use at 2-8°C to avoid gel formation. For use as a coating, dilute in a HBSS, coat culture surface with a minimal volume and incubate at 37°C for 1-2 hours. Wash 3 times with HBBS before plating cells. Laminin coatings can be stored for one month at 2-8°C.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number

Request a Serum Sample
Protocols & Articles


Attachment Factors for 3-Dimensional Cell Culture

Three-dimensional (3D) extracellular matrix-based cell culture systems are being used as research tools for understanding normal and disease systems, and for drug screening in vitro. The extracellula...
Efrat Manaster
BioFiles 2008, 3.8, 16.
Keywords: Adhesion, Angiogenesis, Biomaterials, Cancer, Cell biology, Cell culture, Clinical, Gene expression, Genetic, Genetics, Genomics, Growth factors, Hormones, Molecular biology, Morphogenesis

Extracellular Matrix Proteins and tools for cell culture optimization

Animal cells and tissue culture techniques are constantly improved to optimize in vitro cell culture conditions. Extracellular Matrix (ECM) proteins coating, chemical or physical modification of the ...
Keywords: Adhesion, Angiogenesis, Apoptosis, Asymmetric synthesis, Cancer, Cell attachment, Cell culture, Cell proliferation, Coagulation, Endocrinology, Growth factors, Hormones

What is the Extracellular Matrix?

The extracellular matrix (ECM) is secreted by cells and surrounds them in tissues. It has long been understood to be the structural support for cells since its characteristics set the characteristics...
Keywords: Adhesion, Cell culture, Cellular processes, Epimerizations, Growth factors, Immobilization, Sulfations

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?