TY - JOUR
T1 - The Significance of the Discordant Occurrence of Lens Tumors in Humans versus Other Species
AU - Albert, Daniel M.
AU - Phelps, Paul O.
AU - Surapaneni, Krishna R.
AU - Thuro, Bradley A.
AU - Potter, Heather A.D.
AU - Ikeda, Akihiro
AU - Teixeira, Leandro B.C.
AU - Dubielzig, Richard R.
N1 - Funding Information:
Supported by the National Institutes of Health, Bethesda, Maryland (Core Grant no.: P30 EY016665).
Publisher Copyright:
© 2015 American Academy of Ophthalmology.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - Purpose The purpose of this study was to determine in which species and under what conditions lens tumors occur. Design A review of databases of available human and veterinary ocular pathologic material and the previously reported literature. Participants Approximately 18 000 patients who had ocular surgical specimens submitted and studied at the University of Wisconsin School of Medicine and Public Health between 1920 and 2014 and 45 000 ocular veterinary cases from the Comparative Ocular Pathology Laboratory of Wisconsin between 1983 and 2014. Methods Material in 2 major archived collections at the University of Wisconsin medical and veterinary schools were studied for occurrence of lens tumors. Tumor was defined as a new growth of tissue characterized by progressive, uncontrolled proliferation of cells. In addition, cases presented at 3 major eye pathologic societies (Verhoeff-Zimmerman Ophthalmic Pathology Society, Eastern Ophthalmic Pathology Society, and The Armed Forces Institute of Pathology Ophthalmic Alumni Society) from 1975 through 2014 were reviewed. Finally, a careful search of the literature was carried out. Approval from the institutional review board to carry out this study was obtained. Main Outcome Measures The presence of tumors of the lens. Results The database search and literature review failed to find an example of a lens tumor in humans. In contrast, examples of naturally occurring lens tumors were found in cats, dogs, rabbits, and birds. In the veterinary school database, 4.5% of feline intraocular and adnexal neoplasms (234/5153) were designated as feline ocular posttraumatic sarcoma, a tumor previously demonstrated to be of lens epithelial origin. Similar tumors were seen in rabbit eyes, a bird, and in a dog. All 4 species with lens tumors had a history of either ocular trauma or protracted uveitis. The literature search also revealed cases where lens tumors were induced in zebrafish, rainbow trout, hamsters, and mice by carcinogenic agents (methylcholanthrene, thioacetamide), oncogenic viruses (SV40, HPV-16), and genetic manipulation. Conclusions Our results suggest that lens tumors do not occur in humans. In contrast, after lens capsule rupture, a lens tumor can occur in other species. We hypothesize that a genetic mechanism exists that prevents lens tumors in humans.
AB - Purpose The purpose of this study was to determine in which species and under what conditions lens tumors occur. Design A review of databases of available human and veterinary ocular pathologic material and the previously reported literature. Participants Approximately 18 000 patients who had ocular surgical specimens submitted and studied at the University of Wisconsin School of Medicine and Public Health between 1920 and 2014 and 45 000 ocular veterinary cases from the Comparative Ocular Pathology Laboratory of Wisconsin between 1983 and 2014. Methods Material in 2 major archived collections at the University of Wisconsin medical and veterinary schools were studied for occurrence of lens tumors. Tumor was defined as a new growth of tissue characterized by progressive, uncontrolled proliferation of cells. In addition, cases presented at 3 major eye pathologic societies (Verhoeff-Zimmerman Ophthalmic Pathology Society, Eastern Ophthalmic Pathology Society, and The Armed Forces Institute of Pathology Ophthalmic Alumni Society) from 1975 through 2014 were reviewed. Finally, a careful search of the literature was carried out. Approval from the institutional review board to carry out this study was obtained. Main Outcome Measures The presence of tumors of the lens. Results The database search and literature review failed to find an example of a lens tumor in humans. In contrast, examples of naturally occurring lens tumors were found in cats, dogs, rabbits, and birds. In the veterinary school database, 4.5% of feline intraocular and adnexal neoplasms (234/5153) were designated as feline ocular posttraumatic sarcoma, a tumor previously demonstrated to be of lens epithelial origin. Similar tumors were seen in rabbit eyes, a bird, and in a dog. All 4 species with lens tumors had a history of either ocular trauma or protracted uveitis. The literature search also revealed cases where lens tumors were induced in zebrafish, rainbow trout, hamsters, and mice by carcinogenic agents (methylcholanthrene, thioacetamide), oncogenic viruses (SV40, HPV-16), and genetic manipulation. Conclusions Our results suggest that lens tumors do not occur in humans. In contrast, after lens capsule rupture, a lens tumor can occur in other species. We hypothesize that a genetic mechanism exists that prevents lens tumors in humans.
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U2 - 10.1016/j.ophtha.2015.05.028
DO - 10.1016/j.ophtha.2015.05.028
M3 - Article
C2 - 26130328
AN - SCOPUS:84939774787
SN - 0161-6420
VL - 122
SP - 1765
EP - 1770
JO - Ophthalmology
JF - Ophthalmology
IS - 9
ER -