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Ohtaki Y, Nagashima T, Okano N, Kubo N, Ohtaka T, Sunaga N, Sakurai R, Miura Y, Nakazawa S, Kawatani N, Yazawa T, Yoshikawa R, Narusawa E, Shirabe K. Prognosis of non-small cell lung cancer with postoperative regional lymph node recurrence. Thorac Cancer 2024; 15:859-866. [PMID: 38414316 PMCID: PMC11016435 DOI: 10.1111/1759-7714.15265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Regional lymph node recurrence after radical surgery for non-small cell lung cancer (NSCLC) is an oligo-recurrent disease; however, no treatment strategy has been established. In the present study we aimed to determine the clinical outcomes of postoperative regional lymph node recurrence and identify prognostic predictors in the era of molecular-targeted therapy. METHODS We retrospectively analyzed data on clinical characteristics and outcomes of patients with regional lymph node recurrence after surgery who underwent treatment for NSCLC between 2002 and 2022. RESULTS A total of 53 patients were included in this study. The median time between surgery and detection of recurrence was 1.21 years. Radiotherapy (RT) alone and chemoradiotherapy (CRT) were performed in 38 and six patients, respectively. Driver gene alterations were detected in eight patients (EGFR: 6, ROS1:1, and BRAF: 1) and programmed death-ligand 1 (PD-L1) expression was examined in 22 patients after 2016. Median progression-free survival (PFS) and overall survival (OS) after lymph node recurrences were 1.32 and 4.34 years, respectively. Multiple lymph node recurrence was an independent prognostic factor for PFS, whereas driver gene alteration was the only prognostic factor for OS. There was no significant difference in the OS between patients stratified according to the initial treatment modality for lymph node recurrence. CONCLUSION Our results suggest that the number of tumor recurrences may correlate with PFS, while detection of driver gene alterations could guide decision-making for the appropriate molecular-targeted therapy to achieve longer OS.
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Affiliation(s)
- Yoichi Ohtaki
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Toshiteru Nagashima
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Naoko Okano
- Gunma University Heavy Ion Medical CenterMaebashiJapan
| | - Nobuteru Kubo
- Gunma University Heavy Ion Medical CenterMaebashiJapan
| | - Takeru Ohtaka
- Department of Radiation OncologyGunma University Graduate School of MedicineMaebashiJapan
| | - Noriaki Sunaga
- Division of Allergy and Respiratory MedicineIntegrative Center of Internal Medicine, Gunma University HospitalMaebashiJapan
| | - Reiko Sakurai
- Division of Allergy and Respiratory MedicineIntegrative Center of Internal Medicine, Gunma University HospitalMaebashiJapan
| | - Yosuke Miura
- Division of Allergy and Respiratory MedicineIntegrative Center of Internal Medicine, Gunma University HospitalMaebashiJapan
| | - Seshiru Nakazawa
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Natsuko Kawatani
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Tomohiro Yazawa
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Ryohei Yoshikawa
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Eiji Narusawa
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
| | - Ken Shirabe
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Division of General Thoracic SurgeryIntegrative Center of General Surgery, Gunma University HospitalMaebashiJapan
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Yeon SH, Lee MW, Ryu H, Song IC, Yun HJ, Jo DY, Ko YB, Lee HJ. Efficacy of cisplatin combined with vinorelbine as second- or higher-line palliative chemotherapy in patients with advanced ovarian cancer. Medicine (Baltimore) 2023; 102:e33271. [PMID: 36930110 PMCID: PMC10019173 DOI: 10.1097/md.0000000000033271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/23/2023] [Indexed: 03/18/2023] Open
Abstract
The aim of this study was to assess the therapeutic efficacy of a cisplatin and vinorelbine combination as second- or higher-line palliative chemotherapy in patients with advanced ovarian cancer. We retrospectively reviewed the medical records of patients with advanced ovarian cancer who were treated with cisplatin (60 mg/m2 on day 1) and vinorelbine (25 mg/m2 on days 1 and 8) every 3 weeks between January 2004 and March 2021. Treatment responses, progression-free survival (PFS), and overall survival (OS) were assessed; laboratory data were reviewed to determine toxicity. Thirty-two patients with advanced ovarian cancer were treated with a combination of vinorelbine and cisplatin. The objective response rate (ORR) was 18.8% and the disease control rate was 75.1%. The median PFS was 4.13 months (95% confidence interval [CI], 2.4-5.8 months). The median OS was 56.9 months (95% CI, 50.5-63.7 months). The ORR (42.9% vs 9.1%; P = .035) was higher in the platinum-sensitive group than in the platinum-resistant group. The median PFS tended to be longer in the platinum-sensitive group (5.3 vs 3.8 months; P = .339) and the median OS was significantly longer in the platinum-sensitive group than in the platinum-resistant group (69.6 vs 24 months; P < .001). All patients developed hematological toxicities, with 56% experiencing grade 3 to 4 neutropenia. Two (6.2%) patients developed febrile neutropenia, but no treatment-related death occurred. This combination therapy may be effective in patients with heavily treated advanced ovarian cancer, particularly in platinum-sensitive patients.
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Affiliation(s)
- Sang Hoon Yeon
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Myung-Won Lee
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hyewon Ryu
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Ik-Chan Song
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hwan-Jung Yun
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Deog-Yeon Jo
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Young Bok Ko
- Department of Obstetrics and Gynecology, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hyo Jin Lee
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
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Bowes K, Jovanoski N, Brown AE, Di Maio D, Belleli R, Chadda S, Abogunrin S. Treatment patterns and survival of patients with locoregional recurrence in early-stage NSCLC: a literature review of real-world evidence. Med Oncol 2023; 40:4. [PMID: 36308605 PMCID: PMC9617826 DOI: 10.1007/s12032-022-01790-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/06/2022] [Indexed: 01/17/2023]
Abstract
Approximately 10-50% of patients treated for early-stage (I-III), resectable non-small cell lung cancer (eNSCLC) will develop locoregional recurrence. There is a lack of prospective trials evaluating optimal post-surgery follow-up for this patient population, and treatment guidelines recommend salvage therapies such as surgery, local ablative therapy, and (chemo)radiotherapy. A literature review was conducted according to pre-defined criteria to identify observational studies describing treatment patterns and survival outcomes in patients with eNSCLC who experienced locoregional recurrence. Results showed that, in real-world clinical practice, around 80% of patients with locoregional recurrence underwent any form of active treatment. The most frequently administered treatments were chemotherapy (35.7%), chemoradiotherapy (31.2%), radiotherapy (20.3%), and surgery alone (12.8%). Chemoradiotherapy was associated with improved PFS and OS compared with radiotherapy, while no statistically significant survival benefits were observed for patients receiving surgery in addition to these treatments. The overall survival of patients following treatment for locoregional recurrence was generally poor, and the proportion of patients who experienced any form of post-treatment re-recurrence ranged from 35 to 72%. These findings highlight the need to develop more effective treatment strategies for locoregional recurrence, including preventative treatments, and strategies to improve the survival outcomes of those who do develop locoregional recurrence.
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Seo YS, Park WY, Kim SW, Kim D, Min BJ, Kim WD. Virtual randomized study comparing lobectomy and particle beam therapy for clinical stage IA non-small cell lung cancer in operable patients. JOURNAL OF RADIATION RESEARCH 2021; 62:884-893. [PMID: 34218277 PMCID: PMC8438263 DOI: 10.1093/jrr/rrab060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/30/2021] [Indexed: 06/13/2023]
Abstract
To the best of our knowledge there have been no randomized controlled trials comparing lobectomy-a standard treatment for patients with early-stage non-small cell lung cancer (NSCLC)-and particle beam therapy (PBT), the best performing existing radiotherapy. We conducted a virtual randomized trial in medically operable patients with stage IA NSCLC to compare lobectomy and PBT effectiveness. A Markov model was developed to predict life expectancy after lobectomy and PBT in a cohort of patients with stage IA NSCLC. Ten thousand virtual patients were randomly assigned to each group. Sensitivity analyses were performed as model variables and scenarios changed to determine which treatment strategy was best for improving life expectancy. All estimated model parameters were determined using variables extracted from a systematic literature review of previously published articles. The preferred strategy differed depending on patient age. In young patients, lobectomy showed better life expectancy than that of PBT. The difference in life expectancy between lobectomy and PBT was statistically insignificant in older patients. Our model predicted lobectomy as the preferred strategy when operative mortality was under 5%. However, the preferred strategy changed to PBT if operative mortality post lobectomy was over 5%. For medically operable patients with stage IA NSCLC, our Markov model revealed the preferred strategy of lobectomy or PBT regarding operative mortality changed with varying age and comorbidity. Until randomized controlled trial results become available, we hope the current results will provide a rationale background for clinicians to decide treatment modalities for patients with stage IA NSCLC.
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Affiliation(s)
- Young-Seok Seo
- Department of Radiation Oncology, Chungbuk National University Hospital, Cheongju 28644, Korea
| | - Woo-Yoon Park
- Department of Radiation Oncology, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Si-Wook Kim
- Department of Thoracic and Cardiovascular Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Dohun Kim
- Department of Thoracic and Cardiovascular Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Byung Jun Min
- Corresponding authors: Byung Jun Min, PhD, Department of Radiation Oncology, Chungbuk National University Hospital, Cheongju 28644, Korea. Phone: +82-43-269-6213, Fax: +82-43-269-6208, E-mail: ; Won-Dong Kim, MD, PhD, Department of Radiation Oncology, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju 28644, Korea. Phone: +82-43-269-6212, Fax: +82-43-269-6208, E-mail:
| | - Won-Dong Kim
- Corresponding authors: Byung Jun Min, PhD, Department of Radiation Oncology, Chungbuk National University Hospital, Cheongju 28644, Korea. Phone: +82-43-269-6213, Fax: +82-43-269-6208, E-mail: ; Won-Dong Kim, MD, PhD, Department of Radiation Oncology, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju 28644, Korea. Phone: +82-43-269-6212, Fax: +82-43-269-6208, E-mail:
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Nakamura M, Ohnishi K, Ishikawa H, Nakazawa K, Shiozawa T, Okumura T, Sekine I, Sato Y, Hizawa N, Sakurai H. Salvage Photon or Proton Radiotherapy for Oligo-recurrence in Regional Lymph Nodes After Surgery for Non-small Cell Lung Cancer. In Vivo 2021; 34:1883-1892. [PMID: 32606159 DOI: 10.21873/invivo.11984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/03/2020] [Accepted: 04/06/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM To evaluate the outcome of definitive salvage radiotherapy (RT) in non-small cell lung cancer (NSCLC) patients with oligo-recurrence in regional lymph nodes after surgery. PATIENTS AND METHODS Between January 2003 and December 2016, 33 patients with NSCLC were reviewed from radiotherapy database at our hospital. All patients received photon or proton salvage RT for metastases in the regional lymph nodes. RESULTS The median follow-up from salvage RT was 35.2 (range=5.9-89.6) months. Recurrences occurred in 18 (55%) patients, and the 3-year overall and progression-free survival rates were 63.8% and 45.1%, respectively. Regional and local control improved patients' survival and these control rates were increased by use of concurrent chemotherapy (p=0.039) and proton RT (p=0.084). No grade 4 acute or late non-hematologic toxicities were observed. CONCLUSION Salvage RT is an effective treatment for NSCLC patients with oligo-recurrence at regional lymph nodes.
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Affiliation(s)
- Masatoshi Nakamura
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kayoko Ohnishi
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Hitoshi Ishikawa
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kensuke Nakazawa
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Toshihiro Shiozawa
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Toshiyuki Okumura
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Ikuo Sekine
- Department of Medical Oncology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yukio Sato
- Department of Thoracic Surgery, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Hideyuki Sakurai
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Moore S, Leung B, Wu J, Ho C. Survival Outcomes of Salvage Therapy for Local and Regionally Recurrent NSCLC. JTO Clin Res Rep 2020; 1:100083. [PMID: 34589962 PMCID: PMC8474440 DOI: 10.1016/j.jtocrr.2020.100083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/27/2020] [Accepted: 08/08/2020] [Indexed: 11/29/2022] Open
Abstract
Introduction The treatment of locally recurrent NSCLC after initial curative therapy is variable. We sought to perform a real-world analysis of curative and palliative therapeutic strategies used in locally recurrent NSCLC and explore the impact of baseline factors and the previous and recurrent treatment on outcomes. Methods A retrospective cohort study was done including all patients with stage I to III NSCLC who were referred to BC Cancer and received curative-intent therapy between 2005 and 2012. Patients were followed up to determine whether they developed locoregional recurrence. Two cohorts were created: curative-intent treatment at recurrence (surgery, radiotherapy with ≥50Gy ± chemotherapy, stereotactic radiosurgery) and palliative treatment. The primary outcome was overall survival (OS). Results A total of 1571 patients received curative-intent therapy during the study period. Of these, 179 (11%) developed a local and regional recurrence. A total of 51 patients (28%) were treated with curative intent at recurrence (12 surgery, 39 radiotherapy ± chemotherapy), and 128 (72%) received palliative treatment only. Patients receiving curative-intent therapy were more likely to have an Eastern Cooperative Oncology Group performance status of 0 to 1 (90% versus 58%), earlier stage at diagnosis (51% stage I) and receive more aggressive staging investigations at recurrence, pathologic confirmation (75% versus 27%) and positron emission tomography (77% versus 27%). OS was longer in the cohort receiving curative-intent therapy, with an OS of 34.3 months versus 9.8 months (p < 0.001) in palliative treatment. Conclusions In this real-world population, isolated locoregional recurrences occurred in 11% of patients. Curative-intent treatment at recurrence is associated with a reasonable chance of long-term survival, making aggressive therapy of locoregional recurrences an important treatment consideration.
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Affiliation(s)
- Sara Moore
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Medical Oncology, BC Cancer, Vancouver, British Columbia, Canada
| | - Bonnie Leung
- Department of Medical Oncology, BC Cancer, Vancouver, British Columbia, Canada
| | - Jonn Wu
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Radiation Oncology, BC Cancer, Vancouver, British Columbia, Canada
| | - Cheryl Ho
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Medical Oncology, BC Cancer, Vancouver, British Columbia, Canada
- Corresponding author. Address for correspondence: Cheryl Ho, MD, FRCPC, BC Cancer, 600 W 10th Avenue, Vancouver, BC V5Z 4E6, Canada.
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Terada Y, Isaka M, Harada H, Konno H, Kojima H, Mizuno T, Murayama S, Takahashi T, Ohde Y. Radiotherapy for local recurrence of non-small-cell lung cancer after lobectomy and lymph node dissection-can local recurrence be radically cured by radiation? Jpn J Clin Oncol 2020; 50:425-433. [PMID: 31926488 DOI: 10.1093/jjco/hyz188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/31/2019] [Accepted: 11/17/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND There is no standard therapeutic approach for local recurrence of non-small cell lung cancer (NSCLC) after complete resection. We investigated the outcomes of radiotherapy (RT) for patients with local recurrence. METHODS We reviewed 46 patients who underwent curative-intent RT for local recurrence after lobectomy or pneumonectomy accompanied with mediastinal lymph node dissection between 2002 and 2014. We analyzed overall survival (OS), progression-free survival (PFS), local control, tumour response and the re-recurrence pattern. RESULTS Among the 46 patients, 16 received concurrent chemotherapy. The median follow-up period was 48 months. The response rate was 91%. The 5-year OS and local control rates were 47.9 and 65.3%, respectively, and the 5-year PFS rate was 22.8%. Female sex and complete response to radiation were favourable prognostic factors. Of the 33 patients with recurrence after radiation, 32 (97%) had distant metastasis. CONCLUSIONS Although RT for local recurrence has high efficacy, distant relapse after radiation remains a major issue. Therefore, combination systemic therapy for local recurrence at any site should be further investigated. Since it is difficult to achieve a radical cure for local recurrence using RT, further study, for the administration of post-operative adjuvant therapy, is recommended.
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Affiliation(s)
- Yukihiro Terada
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Mitsuhiro Isaka
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hideyuki Harada
- Division of Radiation Therapy, Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hayato Konno
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hideaki Kojima
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Tetsuya Mizuno
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Shigeyuki Murayama
- Division of Proton Therapy, Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan, and
| | | | - Yasuhisa Ohde
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
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Seo YS, Kim HJ, Wu HG, Choi SM, Park S. Lobectomy versus stereotactic ablative radiotherapy for medically operable patients with stage IA non-small cell lung cancer: A virtual randomized phase III trial stratified by age. Thorac Cancer 2019; 10:1489-1499. [PMID: 31124275 PMCID: PMC6558457 DOI: 10.1111/1759-7714.13103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Although the choice between stereotactic ablative radiotherapy (SABR) and lobectomy for early-stage non-small cell lung cancer (NSCLC) has been debated for years, the two procedures have not yet been directly compared in a randomized trial. We conducted a virtual randomized phase III trial stratified by age to compare the effectiveness of lobectomy and SABR for medically operable patients with stage IA (AJCC eighth) NSCLC using the Markov model analysis. METHODS A Markov model was developed to simulate a cohort of patients aged 45-85 years with stage IA NSCLC who had undergone either lobectomy or SABR and were followed up for their remaining lifetime. Each virtual patient was randomly assigned to undergo lobectomy or SABR, and 10 000 patients were allocated to each group. All estimates of the variables were obtained by a systematic review of published articles. RESULTS The lobectomy group showed a better life expectancy than the SABR group, in patients under 75 years of age. However, no statistically significant difference was seen in patients 75 years or older. The predicted life expectancy was 9.43 and 8.70 years in 75-year-old patients in the lobectomy and SABR groups, respectively. However, the 95%CI for the difference in life expectancy between the two groups was - 0.06-1.50 years (P = 0.0689). CONCLUSIONS The Markov model showed no statistically significant difference in the expected overall survival in stage IA NSCLC patients who were older than 75 years and had undergone SABR or lobectomy.
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Affiliation(s)
- Young-Seok Seo
- Department of Radiation Oncology, ChungBuk National University Hospital, Chungcheongbuk-do, Republic of Korea.,Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hak Jae Kim
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Radiation Oncology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hong Gyun Wu
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Radiation Oncology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sun Mi Choi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Samina Park
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul, Republic of Korea
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Ma G, Zhu J, Liu F, Yang Y. Long Noncoding RNA LINC00460 Promotes the Gefitinib Resistance of Nonsmall Cell Lung Cancer Through Epidermal Growth Factor Receptor by Sponging miR-769-5p. DNA Cell Biol 2019; 38:176-183. [PMID: 30601026 PMCID: PMC6383575 DOI: 10.1089/dna.2018.4462] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The vital roles of long noncoding RNAs (lncRNAs) in the nonsmall cell lung cancer (NSCLC) tumorigenesis are increasingly important. This work aims to investigate the role of lncRNA LINC00460 in the gefitinib resistance of NSCLC cells and discover its relevant mechanism. Our finding reveals that the expression of lncRNA LINC00460 is upregulated in the gefitinib-resistant NSCLC tissue and cells, and closely correlated with advanced tumor stage and clinical poor prognosis outcome. Gain and loss functional assays are performed in gefitinib-resistant NSCLC cells (A549/GR), stating that LINC00460 facilitates the 50% inhibitive concentration of gefitinib for NSCLC cells, multidrug-resistant-related proteins (P-gp, MRP1, and BCRP), as well as the invasion. In vivo, LINC00460 silencing represses the tumor growth. Bioinformatics prediction tools and luciferase analysis confirm that the upregulated LINC00460 sponged miR-769-5p in NSCLC cells; moreover, epidermal growth factor receptor (EGFR) is identified as a direct target gene of miR-769-5p. Verification experiments confirm that the restoration of EGFR could weaken the sensibility of NSCLC cells toward the gefitinib. In conclusion, our result demonstrates that LINC00460 plays a pivotal role in gefitinib resistance of NSCLC cells by targeting EGFR through sponging miR-769-5p. This finding might serve as a therapeutic target for NSCLC.
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Affiliation(s)
- Guodong Ma
- 1 Department of Chest Surgery, Nanjing Chest Hospital, Nanjing, China
| | - Jiping Zhu
- 2 Department of Pneumology, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Feng Liu
- 1 Department of Chest Surgery, Nanjing Chest Hospital, Nanjing, China
| | - Yan Yang
- 3 Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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