ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity
Chemoresistance remains a major drawback to osteosarcoma treatment. ZBTB7A, a member of the POK transcription repressor family, was shown to play an important role in tumorigenesis. However, the effect of ZBTB7A on osteosarcoma chemoresistance is completely unknown. In this study, we found that ZBTB...
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doaj-74858cce6e5842b49aa096969eb0fc712020-11-24T21:00:23ZengElsevierNeoplasia: An International Journal for Oncology Research1476-55861522-80022017-11-01191190891810.1016/j.neo.2017.08.008ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 ActivityLu Zhang0Yuan Wang1Xiaojie Li2Xin Xia3Na Li4Ruiping He5Hongtao He6Chuanchun Han7Wenzhi Zhao8Department of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaDepartment of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaCollege of Stomatology, Dalian Medical University, Dalian 116044, ChinaDepartment of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaPathology Department of College of Basic Medical Science, Dalian Medical University, Dalian 116044, ChinaDepartment of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaDepartment of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaDepartment of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaDepartment of Orthopedics, Second Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian116027, ChinaChemoresistance remains a major drawback to osteosarcoma treatment. ZBTB7A, a member of the POK transcription repressor family, was shown to play an important role in tumorigenesis. However, the effect of ZBTB7A on osteosarcoma chemoresistance is completely unknown. In this study, we found that ZBTB7A is increased in cisplatin-resistant osteosarcoma cells and that elevated ZBTB7A inhibits cisplatin-induced apoptosis by repressing LINC00473 expression. Further mechanistic studies revealed that ZBTB7A directly binds to the promoter and suppresses the transcription of LINC00473. Additionally, our data indicate that LINC00473 interacts with the transcript factor C/EBPβ, facilitating its binding to the promoter of IL24, leading to decrease chemoresistance. Thus, these findings indicate that the ZBTB7A-mediated LINC00473-C/EBPβ-IL24 pathway is a promising novel target for overcoming cisplatin resistance in osteosarcoma.http://www.sciencedirect.com/science/article/pii/S1476558617303068 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lu Zhang Yuan Wang Xiaojie Li Xin Xia Na Li Ruiping He Hongtao He Chuanchun Han Wenzhi Zhao |
spellingShingle |
Lu Zhang Yuan Wang Xiaojie Li Xin Xia Na Li Ruiping He Hongtao He Chuanchun Han Wenzhi Zhao ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity Neoplasia: An International Journal for Oncology Research |
author_facet |
Lu Zhang Yuan Wang Xiaojie Li Xin Xia Na Li Ruiping He Hongtao He Chuanchun Han Wenzhi Zhao |
author_sort |
Lu Zhang |
title |
ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity |
title_short |
ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity |
title_full |
ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity |
title_fullStr |
ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity |
title_full_unstemmed |
ZBTB7A Enhances Osteosarcoma Chemoresistance by Transcriptionally Repressing lncRNALINC00473-IL24 Activity |
title_sort |
zbtb7a enhances osteosarcoma chemoresistance by transcriptionally repressing lncrnalinc00473-il24 activity |
publisher |
Elsevier |
series |
Neoplasia: An International Journal for Oncology Research |
issn |
1476-5586 1522-8002 |
publishDate |
2017-11-01 |
description |
Chemoresistance remains a major drawback to osteosarcoma treatment. ZBTB7A, a member of the POK transcription repressor family, was shown to play an important role in tumorigenesis. However, the effect of ZBTB7A on osteosarcoma chemoresistance is completely unknown. In this study, we found that ZBTB7A is increased in cisplatin-resistant osteosarcoma cells and that elevated ZBTB7A inhibits cisplatin-induced apoptosis by repressing LINC00473 expression. Further mechanistic studies revealed that ZBTB7A directly binds to the promoter and suppresses the transcription of LINC00473. Additionally, our data indicate that LINC00473 interacts with the transcript factor C/EBPβ, facilitating its binding to the promoter of IL24, leading to decrease chemoresistance. Thus, these findings indicate that the ZBTB7A-mediated LINC00473-C/EBPβ-IL24 pathway is a promising novel target for overcoming cisplatin resistance in osteosarcoma. |
url |
http://www.sciencedirect.com/science/article/pii/S1476558617303068 |
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