Immunohistochemical evaluation of conjunctival fibrillin-1 in Marfan syndrome

Anuradha Ganesh, Charles Smith, Wilson Chan, Sheila Unger, Nada Quercia, Maurice Godfrey, Stephen Kraft, Raymond Buncic, Alex Levin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Objective: To evaluate status of conjunctival fibrillin-1 in patients with Marfan syndrome with ectopia lentis. Methods: Frozen sections of conjunctiva from 6 patients with Marfan syndrome with ectopia lentis and from 15 age-matched control subjects were stained with mouse antihuman fibrillin-1 antibody, using an avidin biotin immunoperoxidase technique. The fibrillin-1 staining characteristics of conjunctiva were analyzed with the light microscope. Results: All the fresh frozen sections of conjunctival samples from control subjects demonstrated a characteristic pattern of fibrillin-1 staining. We observed a woven network of thin fibrils of uniform thickness surrounding collagen bundles. The fresh frozen samples from patients with Marfan syndrome showed consistent qualitative differences in fibrillin-1 staining when compared with samples from control subjects. The fibrils were longer and straighter than normal, varied in caliber, and showed fewer tendencies to form a woven pattern. Conclusions: Consistent, qualitative abnormalities in fibrillin-1 staining pattern can be seen in the conjunctiva of patients with Marfan syndrome with ectopia lentis. Conjunctival biopsy deserves further investigation as a diagnostic modality for Marfan syndrome in patients with ectopia lentis.

Original languageEnglish
Pages (from-to)205-209
Number of pages5
JournalArchives of Ophthalmology
Issue number2
Publication statusPublished - Feb 2006

ASJC Scopus subject areas

  • Ophthalmology


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