Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth
The prediction of who develops metastasis has been the most difficult aspect in the management of breast cancer patients. The lymph node metastasis has been the most useful predictor of prognosis and patient management. However, a good proportion of patients with lymph node positivity remain disease...
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SAGE Publishing
2017-04-01
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| Series: | Tumor Biology |
| Online Access: | https://doi.org/10.1177/1010428317695919 |
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| author | Surekha Damineni Sai A Balaji Abhijith Shettar Swetha Nayanala Neeraj Kumar Banavathy S Kruthika Kalyanasundaram Subramanian M Vijayakumar Geetashree Mukherjee Vaijayanti Gupta Paturu Kondaiah |
| author_facet | Surekha Damineni Sai A Balaji Abhijith Shettar Swetha Nayanala Neeraj Kumar Banavathy S Kruthika Kalyanasundaram Subramanian M Vijayakumar Geetashree Mukherjee Vaijayanti Gupta Paturu Kondaiah |
| author_sort | Surekha Damineni |
| collection | DOAJ |
| description | The prediction of who develops metastasis has been the most difficult aspect in the management of breast cancer patients. The lymph node metastasis has been the most useful predictor of prognosis and patient management. However, a good proportion of patients with lymph node positivity remain disease free for 5 years or more, while about a third of those who were lymph node negative develop distant metastasis within the same period. This warrants a robust biomarker(s), preferably gene expression based. In order to elucidate gene-based biomarkers for prognosis of breast cancers, gene expression profiling of primary tumors and follow-up for over 5 years has been performed. The analysis revealed a network of genes centered around the tripartite motif-containing protein 28 as an important indicator of disease progression. Short hairpin RNA–mediated knockdown of tripartite motif-containing protein 28 in breast cancer cells revealed a decreased expression of epithelial-to-mesenchymal transition markers and increased expression of epithelial markers, decreased migration and invasion, and increased chemosensitivity to doxorubicin, 5-fluorouracil, and methotrexate. Furthermore, knockdown of tripartite motif-containing protein 28 resulted in the decrease of stemness as revealed by sphere formation assay as well as decreased expression of CD44 and Bmi1. Moreover, tripartite motif-containing protein 28 knockdown significantly reduced the tumor size and lung metastasis in orthotopic tumor xenograft assay in immunocompromised mice. The tumor size was further reduced when these mice were treated with doxorubicin. These data provide evidence for tripartite motif-containing protein 28 as a biomarker and a potential therapeutic target for breast cancer. |
| format | Article |
| id | doaj-art-b881b856fd734c96ac7308b7264b9d2a |
| institution | DOAJ |
| issn | 1423-0380 |
| language | English |
| publishDate | 2017-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Tumor Biology |
| spelling | doaj-art-b881b856fd734c96ac7308b7264b9d2a2025-08-20T02:51:24ZengSAGE PublishingTumor Biology1423-03802017-04-013910.1177/1010428317695919Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growthSurekha Damineni0Sai A Balaji1Abhijith Shettar2Swetha Nayanala3Neeraj Kumar4Banavathy S Kruthika5Kalyanasundaram Subramanian6M Vijayakumar7Geetashree Mukherjee8Vaijayanti Gupta9Paturu Kondaiah10Indian Institute of Science, Bangalore, IndiaStrand Life Sciences, Bangalore, IndiaIndian Institute of Science, Bangalore, IndiaStrand Life Sciences, Bangalore, IndiaIndian Institute of Science, Bangalore, IndiaIndian Institute of Science, Bangalore, IndiaStrand Life Sciences, Bangalore, IndiaKidwai Institute of Oncology, Bangalore, IndiaKidwai Institute of Oncology, Bangalore, IndiaStrand Life Sciences, Bangalore, IndiaIndian Institute of Science, Bangalore, IndiaThe prediction of who develops metastasis has been the most difficult aspect in the management of breast cancer patients. The lymph node metastasis has been the most useful predictor of prognosis and patient management. However, a good proportion of patients with lymph node positivity remain disease free for 5 years or more, while about a third of those who were lymph node negative develop distant metastasis within the same period. This warrants a robust biomarker(s), preferably gene expression based. In order to elucidate gene-based biomarkers for prognosis of breast cancers, gene expression profiling of primary tumors and follow-up for over 5 years has been performed. The analysis revealed a network of genes centered around the tripartite motif-containing protein 28 as an important indicator of disease progression. Short hairpin RNA–mediated knockdown of tripartite motif-containing protein 28 in breast cancer cells revealed a decreased expression of epithelial-to-mesenchymal transition markers and increased expression of epithelial markers, decreased migration and invasion, and increased chemosensitivity to doxorubicin, 5-fluorouracil, and methotrexate. Furthermore, knockdown of tripartite motif-containing protein 28 resulted in the decrease of stemness as revealed by sphere formation assay as well as decreased expression of CD44 and Bmi1. Moreover, tripartite motif-containing protein 28 knockdown significantly reduced the tumor size and lung metastasis in orthotopic tumor xenograft assay in immunocompromised mice. The tumor size was further reduced when these mice were treated with doxorubicin. These data provide evidence for tripartite motif-containing protein 28 as a biomarker and a potential therapeutic target for breast cancer.https://doi.org/10.1177/1010428317695919 |
| spellingShingle | Surekha Damineni Sai A Balaji Abhijith Shettar Swetha Nayanala Neeraj Kumar Banavathy S Kruthika Kalyanasundaram Subramanian M Vijayakumar Geetashree Mukherjee Vaijayanti Gupta Paturu Kondaiah Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth Tumor Biology |
| title | Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth |
| title_full | Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth |
| title_fullStr | Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth |
| title_full_unstemmed | Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth |
| title_short | Expression of tripartite motif-containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness, chemoresistance, and tumor growth |
| title_sort | expression of tripartite motif containing protein 28 in primary breast carcinoma predicts metastasis and is involved in the stemness chemoresistance and tumor growth |
| url | https://doi.org/10.1177/1010428317695919 |
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