Establishment and characterization of a cell line from human adenoid cystic carcinoma of the lacrimal glands and a nude mouse transplantable model

Lin,Tingting; Zhu,Limin; Zhou,Beiqing; Xie,Lianfeng; Lv,Jianmei; Dong,Lijie; He,Yanjin

doi:10.3892/or.2015.3925

June-2015 Volume 33 Issue 6

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June-2015 Volume 33 Issue 6

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Article

Establishment and characterization of a cell line from human adenoid cystic carcinoma of the lacrimal glands and a nude mouse transplantable model

Authors:
- Tingting Lin
- Limin Zhu
- Beiqing Zhou
- Lianfeng Xie
- Jianmei Lv
- Lijie Dong
- Yanjin He
View Affiliations / Copyright

Affiliations: Department of Orbital Disease and Oculoplastic Surgery, Tianjin Medical University Eye Hospital, School of Optometry and Ophthalmology, TMU, Tianjin Medical University Eye Institute, Tianjin 300384, P.R. China
Pages: 2797-2806
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Published online on: April 24, 2015

https://doi.org/10.3892/or.2015.3925
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Abstract

Using tissue block culture techniques, we established a new human tumor cell line derived from adenoid cystic carcinoma of the lacrimal glands (LACC-1). The LACC-1 cell line was successfully subcultured for more than 100 passages during the last two years. The outgrowth of cells was observed by day 5 after seeding, and then the cells were generated slowly. The first passage proceeded by day 32, and the classical epithelioid cell colonies formed by day 69 after inoculation. After eight passages, homogeneous epithelioid tumor cells appeared when we combined continuous passage, mechanical scraping, repeated adherence, and dissociation methods to remove the fibroblast cells. LACC-1 cells appeared as a histologically solid pattern and continuous passage culture. The population doubling time was approximately 37.1 h. LACC-1 cells appeared as an epithelioid monolayer culture on the cell culture flask and presented with a cobblestone-like appearance when they reached confluency. The nucleus was large and round with many abnormal mitoses. The nucleoplasm ratio was high. Multinucleated tumor giant cells appeared. LACC-1 cells showed a tendency to have overlapping growth without contact inhibition when the cell density continued to increase. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the LACC-1 cells were malignant tumor cells that were poorly differentiated. The surface of the LACC-1 cells exhibited affluent microvilli, protuberances and filopodia under SEM. The no. 84 generation LACC-1 cell line was inoculated subcutaneously into the subaxillary of nude mice and the tumorigenic potential was evident. The formation rate of the transplanted tumors was 100% at day 7 after inoculation. This finding showed that the LACC-1 cell line was malignant with tumorigenic ability. The xenograft tumors retained the same histological characteristics of a solid pattern as the LACC-1 original tumor after inoculation for 49 days. Under TEM observation, the xenograft tumor cells had the same ultrastructure as the LACC-1 cells. Immunohistochemical examination revealed the similarity of both cytoskeletal proteins (e.g., cytokeratin, vimentin, desmin and α-SMA) and S-100 expression in the original tumor, LACC-1 cells and xenograft tumors. Immunoreactivity of these proteins was gradually decreased in these three tissues. Reverse transcription-polymerase chain reaction demonstrated that the xenograft tumors originated from the human. Based on these results, the LACC-1 cell line provides a useful model for studying the biological characteristics of human ACC of the lacrimal glands.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Establishment and characterization of a cell line from human adenoid cystic carcinoma of the lacrimal glands and a nude mouse transplantable model

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