APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma

Mammalian apurinic/apyrimidinic endonuclease 1 (APE1, APEX1) is a multifunctional enzyme that maintains cellular homeostasis. It is involved in the base excision repair (BER) pathway and plays a key role in radiation-induced DNA damage response. However, the relationship between APE1-driven radiatio...

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Main Authors: Jing Zhou, Zixin Wei, Chuan Yang, Dexin Jia, Bo Pan, Yuan Zeng, Di Sun, Yan Yu
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Translational Oncology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1936523323001353
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author Jing Zhou
Zixin Wei
Chuan Yang
Dexin Jia
Bo Pan
Yuan Zeng
Di Sun
Yan Yu
author_facet Jing Zhou
Zixin Wei
Chuan Yang
Dexin Jia
Bo Pan
Yuan Zeng
Di Sun
Yan Yu
author_sort Jing Zhou
collection DOAJ
description Mammalian apurinic/apyrimidinic endonuclease 1 (APE1, APEX1) is a multifunctional enzyme that maintains cellular homeostasis. It is involved in the base excision repair (BER) pathway and plays a key role in radiation-induced DNA damage response. However, the relationship between APE1-driven radiation resistance and pyroptosis in lung adenocarcinoma (LUAD) cells and the underlying molecular mechanisms remain unclear. We found that APE1 was significantly upregulated in LUAD tissues compared to para-carcinoma tissues and promoted the proliferation and invasion of LUAD cells in vitro and in vivo. Mechanistically, APE1 inhibited pyroptosis by inactivating the interferon gene stimulator (STING) pathway via direct interaction with AIM2 and DDX41, as detected by RNA-seq and co-immunoprecipitation. APE1 protects LUAD cells against radiation-induced damage and induces radio-resistance by targeting the STING pathway. It can induce pyroptosis and is negatively regulated by interactions with AIM2 and DDX41. Therefore, APE1 inhibitors should be considered to enhance the radiosensitivity of LUAD cells and improve patient prognosis and therapeutic outcomes. Thus, APE1 play a role in the tumor immune microenvironment and in tumor immunotherapy.
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spelling doaj.art-67f7646368cc47ce87d61bd4b9338b482023-08-10T04:34:08ZengElsevierTranslational Oncology1936-52332023-10-0136101749APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinomaJing Zhou0Zixin Wei1Chuan Yang2Dexin Jia3Bo Pan4Yuan Zeng5Di Sun6Yan Yu7Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin 150040, ChinaDepartment of Medical Oncology, Sichuan Cancer Hospital, Chengdu 610042, ChinaDepartment of Gastroenterology, Heilongjiang Provincial Hospital, Harbin 150001, ChinaDepartment of Medical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Nangang District, Harbin 150040, ChinaDepartment of Medical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Nangang District, Harbin 150040, ChinaDepartment of Medical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Nangang District, Harbin 150040, ChinaDepartment of Radiotherapy Technology Center, Harbin Medical University Cancer Hospital, Harbin 150040, ChinaDepartment of Medical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Nangang District, Harbin 150040, China; Corresponding author.Mammalian apurinic/apyrimidinic endonuclease 1 (APE1, APEX1) is a multifunctional enzyme that maintains cellular homeostasis. It is involved in the base excision repair (BER) pathway and plays a key role in radiation-induced DNA damage response. However, the relationship between APE1-driven radiation resistance and pyroptosis in lung adenocarcinoma (LUAD) cells and the underlying molecular mechanisms remain unclear. We found that APE1 was significantly upregulated in LUAD tissues compared to para-carcinoma tissues and promoted the proliferation and invasion of LUAD cells in vitro and in vivo. Mechanistically, APE1 inhibited pyroptosis by inactivating the interferon gene stimulator (STING) pathway via direct interaction with AIM2 and DDX41, as detected by RNA-seq and co-immunoprecipitation. APE1 protects LUAD cells against radiation-induced damage and induces radio-resistance by targeting the STING pathway. It can induce pyroptosis and is negatively regulated by interactions with AIM2 and DDX41. Therefore, APE1 inhibitors should be considered to enhance the radiosensitivity of LUAD cells and improve patient prognosis and therapeutic outcomes. Thus, APE1 play a role in the tumor immune microenvironment and in tumor immunotherapy.http://www.sciencedirect.com/science/article/pii/S1936523323001353RadiosensitivityLUADAPE1STINGPyroptosis
spellingShingle Jing Zhou
Zixin Wei
Chuan Yang
Dexin Jia
Bo Pan
Yuan Zeng
Di Sun
Yan Yu
APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma
Translational Oncology
Radiosensitivity
LUAD
APE1
STING
Pyroptosis
title APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma
title_full APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma
title_fullStr APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma
title_full_unstemmed APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma
title_short APE1 promotes radiation resistance against radiation-induced pyroptosis by inhibiting the STING pathway in lung adenocarcinoma
title_sort ape1 promotes radiation resistance against radiation induced pyroptosis by inhibiting the sting pathway in lung adenocarcinoma
topic Radiosensitivity
LUAD
APE1
STING
Pyroptosis
url http://www.sciencedirect.com/science/article/pii/S1936523323001353
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