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Cataracts are the most common eye disease to cause blindness in patients. The abnormal deposition of laminins (LMs) in the lens capsule and the disruption of capsular epithelium contribute to cataract development, although the mechanism by which this occurs is currently unclear. The present study aimed to reproduce HLE B‑3 basement membranes (BMs) using HLE B‑3 cells and to analyze the similarities of LM expression between HLE B‑3 BMs and human anterior lens capsule (ALC). Immunohistochemistry (IHC), ELISA, western blot analysis and immunoprecipitation (IP)‑western blot analysis were used to detect total LMs, LM trimers and 11 LM subunits in HLE B‑3 cells, HLE B‑3 BMs and human ALCs. In IHC staining, HLE B‑3 cells and human ALCs were positive for LMs. In LM ELISA, all samples analyzed were positive for LMs. Western blot analysis detected all LM subunits except for LMγ3 in HLE B‑3 cell lysate, 4 subunits (LMα4, LMα2, LMα1 and LMγ1) in HLE B‑3 cell culture supernatant, 5 subunits (LMα4, LMα2, LMα1, LMβ3 and LMγ1) in HLE B‑3 BMs, and 3 subunits (LMα4, LMγ2 and LMγ1) in human ALCs. The results of IP‑western blot analysis revealed that the LM411 trimer was detected in HLE B‑3 cell culture supernatant. These results indicated that HLE B‑3 BMs were similar to human ALCs in terms of LM expression. Therefore, HLE B‑3 BMs could be used as an in vitro ALC model to determine the role of LMs in ALC in the pathogenesis of cataracts and to select potential anti‑cataract drugs.

Laminins in an inï¿½vitro anterior lens capsule model established using HLE B-3 cells