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Wu WF, Lai KM, Chen CH, Wang BC, Chen YJ, Shen CW, Chen KY, Lin EC, Chen CC. Predicting the T790M mutation in non-small cell lung cancer (NSCLC) using brain metastasis MR radiomics: a study with an imbalanced dataset. Discov Oncol 2024; 15:447. [PMID: 39277568 PMCID: PMC11401825 DOI: 10.1007/s12672-024-01333-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Accepted: 09/10/2024] [Indexed: 09/17/2024] Open
Abstract
BACKGROUND Early detection of T790M mutation in exon 20 of epidermal growth factor receptor (EGFR) in non-small cell lung cancer (NSCLC) patients with brain metastasis is crucial for optimizing treatment strategies. In this study, we developed radiomics models to distinguish NSCLC patients with T790M-positive mutations from those with T790M-negative mutations using multisequence MR images of brain metastasis despite an imbalanced dataset. Various resampling techniques and classifiers were employed to identify the most effective strategy. METHODS Radiomic analyses were conducted on a dataset comprising 125 patients, consisting of 18 with EGFR T790M-positive mutations and 107 with T790M-negative mutations. Seventeen first- and second-order statistical features were selected from CET1WI, T2WI, T2FLAIR, and DWI images. Four classifiers (logistic regression, support vector machine, random forest [RF], and extreme gradient boosting [XGBoost]) were evaluated under 13 different resampling conditions. RESULTS The area under the curve (AUC) value achieved was 0.89, using the SVM-SMOTE oversampling method in combination with the XGBoost classifier. This performance was measured against the AUC reported in the literature, serving as an upper-bound reference. Additionally, comparable results were observed with other oversampling methods paired with RF or XGBoost classifiers. CONCLUSIONS Our study demonstrates that, even when dealing with an imbalanced EGFR T790M dataset, reasonable predictive outcomes can be achieved by employing an appropriate combination of resampling techniques and classifiers. This approach has significant potential for enhancing T790M mutation detection in NSCLC patients with brain metastasis.
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Affiliation(s)
- Wen-Feng Wu
- Department of Radiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, 600, Taiwan
| | - Kuan-Ming Lai
- Department of Radiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, 600, Taiwan
- Central Taiwan University of Science and Technology Institute of Radiological Science, Taichung, 406, Taiwan
| | - Chia-Hung Chen
- Department of Radiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, 600, Taiwan
- Central Taiwan University of Science and Technology Institute of Radiological Science, Taichung, 406, Taiwan
| | - Bai-Chuan Wang
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi, 62102, Taiwan
| | - Yi-Jen Chen
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi, 62102, Taiwan
| | - Chia-Wei Shen
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi, 62102, Taiwan
| | - Kai-Yan Chen
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi, 62102, Taiwan
| | - Eugene C Lin
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi, 62102, Taiwan.
- Center for Nano Bio-Detection, National Chung Cheng University, Chiayi, 621, Taiwan.
| | - Chien-Chin Chen
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, No. 539, Zhongxiao Rd., East Dist., Chiayi City, 60002, Taiwan.
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, 701, Taiwan.
- Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan.
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Li Q, Jiang M, Hong S, Yang J, Wu X, Pang J, Chen Y, Zhao X, Ding X. Comprehensive genomic and clinical analyses identify APOBEC mutational signatures as a brain metastasis risk factor in lung adenocarcinoma patients. Transl Oncol 2024; 43:101921. [PMID: 38402722 PMCID: PMC10904272 DOI: 10.1016/j.tranon.2024.101921] [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: 11/20/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024] Open
Abstract
BACKGROUND Lung adenocarcinoma is the most common source of brain metastasis (BM), resulting in significant morbidity and mortality. We aimed to identify patients with high BM risk who possibly benefit from brain-penetrant drugs, prophylactic cranial irradiation, or close brain magnetic resonance imaging surveillance. METHODS Metastatic lung adenocarcinoma patients with extracranial tumor samples profiled by a next-generation sequencing panel targeting 425 tumor-related genes were retrospectively enrolled between February 2008 and July 2021. We compared BM and non-BM patients' genomic and clinical features and studied their associations with BM risk. Two external cohorts were used for result validation and molecular mechanisms investigation, respectively. RESULTS We included 174 eligible patients, including 90 having developed BM by the end of follow-up. Age≤60, EGFR activating mutations, and high-level apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like (APOBEC) mutational signatures were associated with elevated BM risk. Similar findings in BM-free survival were obtained by fitting Fine-Gray subdistribution hazard models addressing competing risks. Increased BM risk related to APOBEC mutational signatures was validated in an external cohort (N = 440). RNA sequencing data analyses performed in another external cohort (N = 230) revealed that expressions of metastasis-related pathways such as transforming growth factor (TGF)β and epithelial-mesenchymal transition (EMT) were upregulated in the patients with high-level APOBEC mutational signatures. CONCLUSION APOBEC mutational signatures related to upregulated TGFβ and EMT, could serve as an independent risk factor for BM and BM-free survival in metastatic lung adenocarcinoma patients. Further investigations are warranted to tailor personalized treatments to improve the susceptible patient's outcomes.
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Affiliation(s)
- Qiang Li
- Cancer Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China; Cancer Center, Shandong Provincial Hospital, Shandong University, Jinan, 250021, China
| | - Meng Jiang
- Department of Neurosurgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China; Department of Neurosurgery, Shandong Provincial Hospital, Shandong University, Jinan, 250021, China
| | - Shiqiang Hong
- Cancer Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China; Cancer Center, Shandong Provincial Hospital, Shandong University, Jinan, 250021, China
| | - Jing Yang
- Cancer Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China; Cancer Center, Shandong Provincial Hospital, Shandong University, Jinan, 250021, China
| | - Xiaoying Wu
- Nanjing Geneseeq Technology Inc., Nanjing, 210032, China
| | - Jiaohui Pang
- Nanjing Geneseeq Technology Inc., Nanjing, 210032, China
| | - Yedan Chen
- Nanjing Geneseeq Technology Inc., Nanjing, 210032, China
| | - Xiaotian Zhao
- Nanjing Geneseeq Technology Inc., Nanjing, 210032, China
| | - Xiao Ding
- Cancer Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China; Cancer Center, Shandong Provincial Hospital, Shandong University, Jinan, 250021, China.
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Niimi T, Samejima J, Wakabayashi M, Miyoshi T, Tane K, Aokage K, Taki T, Nakai T, Ishii G, Kikuchi A, Yoshioka E, Yokose T, Ito H, Tsuboi M. Ten-year follow-up outcomes of limited resection trial for radiologically less-invasive lung cancer. Jpn J Clin Oncol 2024; 54:479-488. [PMID: 38183216 DOI: 10.1093/jjco/hyad187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/13/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND The JCOG0804/WJOG4507L single-arm confirmatory trial indicated a satisfactory 10-year prognosis for patients who underwent limited resection for radiologically less-invasive lung cancer. However, only one prospective trial has reported a 10-year prognosis. METHODS We conducted a multicenter prospective study coordinated by the National Cancer Center Hospital East and Kanagawa Cancer Center. We analyzed the long-term prognosis of 100 patients who underwent limited resection of a radiologically less-invasive lung cancer in the peripheral lung field. We defined radiologically less-invasive lung cancer as lung adenocarcinoma with a maximum tumor diameter of ≤2 cm, tumor disappearance ratio of ≥0.5 and cN0. The primary endpoint was the 10-year local recurrence-free survival. RESULTS Our patients, with a median age of 62 years, included 39 males. A total of 58 patients were non-smokers; 87 had undergone wide wedge resection and 9 underwent segmentectomy. A total of four cases were converted to lobectomy because of the presence of poorly differentiated components in the frozen specimen or insufficient margin with segmentectomy. The median follow-up duration was 120.9 months. The 10-year recurrence-free survival and overall survival rates of patients with lung cancer were both 96.0%. Following the 10-year long-term follow-up, two patients experienced recurrences at resection ends after wedge resection. CONCLUSIONS Limited resection imparted a satisfactory prognosis for patients with radiologically less-invasive lung cancer, except two cases of local recurrence >5 years after surgery. These findings suggest that patients with this condition who underwent limited resection may require continued follow-up >5 years after surgery.
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Affiliation(s)
- Takahiro Niimi
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Joji Samejima
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Masashi Wakabayashi
- Biostatistics Division, Center for Research Administration and Support, National Cancer Center Hospital East, Kashiwa
| | - Tomohiro Miyoshi
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Kenta Tane
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Keiju Aokage
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Tetsuro Taki
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Tokiko Nakai
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba
| | - Genichiro Ishii
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba
- Division of Innovative Pathology and Laboratory Medicine, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiba, Chiba
| | - Akitomo Kikuchi
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Kanagawa
| | - Emi Yoshioka
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Kanagawa
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Kanagawa
| | - Hiroyuki Ito
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan
| | - Masahiro Tsuboi
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba
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Kim SH, Lee YS, Lee SH, Sung YE, Lee A, Kang J, Park JS, Jeun SS, Lee YS. Single-center study on clinicopathological and typical molecular pathologic features of metastatic brain tumor. J Pathol Transl Med 2023; 57:217-231. [PMID: 37460396 PMCID: PMC10369139 DOI: 10.4132/jptm.2023.06.10] [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: 04/04/2023] [Accepted: 06/10/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND The metastatic brain tumor is the most common brain tumor. The aim of this study was to demonstrate the clinicopathological and molecular pathologic features of brain metastases (BM). METHODS A total of 269 patients were diagnosed with BM through surgical resection at Seoul St. Mary's Hospital from January 2010 to March 2020. We reviewed the clinicopathological features and molecular status of primary and metastatic brain tissues using immunohistochemistry and molecular pathology results. RESULTS Among 269 patients, 139 males and 130 females were included. The median age of primary tumor was 58 years (range, 13 to 87 years) and 86 patients (32.0%) had BM at initial presentation. Median BM free interval was 28.0 months (range, 1 to 286 months). The most frequent primary site was lung 46.5% (125/269), and followed by breast 15.6% (42/269), colorectum 10.0% (27/269). Epidermal growth factor receptor (EGFR) mutation was found in 50.8% (32/63) and 58.0% (40/69) of lung primary and BM, respectively. In both breast primary and breast cancer with BM, luminal B was the most frequent subtype at 37.9% (11/29) and 42.9% (18/42), respectively, followed by human epidermal growth factor receptor 2 with 31.0% (9/29) and 33.3% (14/42). Triple-negative was 20.7% (6/29) and 16.7% (7/42), and luminal A was 10.3% (3/29) and 7.1% (3/42) of breast primary and BM, respectively. In colorectal primary and colorectal cancer with BM, KRAS mutation was found in 76.9% (10/13) and 66.7% (2/3), respectively. CONCLUSIONS We report the clinicopathological and molecular pathologic features of BM that can provide useful information for understanding the pathogenesis of metastasis and for clinical trials based on the tumor's molecular pathology.
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Affiliation(s)
- Su Hwa Kim
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Suk Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hak Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yeoun Eun Sung
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ahwon Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun Kang
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Sung Park
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sin Soo Jeun
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youn Soo Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Winther RR, Skovlund E, Andreassen JS, Arvidsson L, Halvardson J, Solheim O, Bartek J, Kaasa S, Hjermstad MJ, Vik-Mo EO. Preoperative Prognostic Index for Patients with Brain Metastases-A Population-Based Multi-Centre Study. Cancers (Basel) 2023; 15:3174. [PMID: 37370784 DOI: 10.3390/cancers15123174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/08/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Brain metastases (BM) are common in cancer patients and are associated with high morbidity and mortality. Surgery is an option, but the optimal selection of patients for surgery is challenging and controversial. Current prognostication tools are not ideal for preoperative prognostication. By using a reference population (derivation data set) and two external populations (validation data set) of patients who underwent surgery for BM, we aimed to create and validate a preoperative prognostic index. METHODS The derivation data set consists of 590 patients who underwent surgery for BM (2011-2018) at Oslo University Hospital. We identified variables associated with survival and created a preoperative prognostic index with four prognostic groups, which was validated on patients who underwent surgery for BM at Karolinska University Hospital and St. Olavs University Hospital during the same time period. To reduce over-fitting, we adjusted the index in accordance with our findings. RESULTS 438 patients were included in the validation data set. The preoperative prognostic index correctly divided patients into four true prognostic groups. The two prognostic groups with the poorest survival outcomes overlapped, and these were merged to create the adjusted preoperative prognostic index. CONCLUSION We created a prognostic index for patients with BM that predicts overall survival preoperatively. This index might be valuable in supporting informed choice when considering surgery for BM.
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Affiliation(s)
- Rebecca Rootwelt Winther
- European Palliative Care Research Centre (PRC), Department of Oncology, Oslo University Hospital, Institute of Clinical Medicine, University of Oslo, 4956 Oslo, Norway
| | - Eva Skovlund
- Department of Public Health and Nursing, Norwegian University of Science and Technology, 7034 Trondheim, Norway
| | | | - Lisa Arvidsson
- Department of Neurosurgery, Karolinska University Hospital, 17164 Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jonathan Halvardson
- Department of Neurosurgery, Karolinska University Hospital, 17164 Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ole Solheim
- Department of Neurosurgery, St. Olavs University Hospital, 7030 Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, 7034 Trondheim, Norway
| | - Jiri Bartek
- Department of Neurosurgery, Karolinska University Hospital, 17164 Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Stein Kaasa
- European Palliative Care Research Centre (PRC), Department of Oncology, Oslo University Hospital, Institute of Clinical Medicine, University of Oslo, 4956 Oslo, Norway
| | - Marianne Jensen Hjermstad
- European Palliative Care Research Centre (PRC), Department of Oncology, Oslo University Hospital, Institute of Clinical Medicine, University of Oslo, 4956 Oslo, Norway
| | - Einar Osland Vik-Mo
- Institute of Clinical Medicine, University of Oslo, 0318 Oslo, Norway
- Vilhelm Magnus Laboratory, Department of Neurosurgery, Oslo University Hospital, 0372 Oslo, Norway
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Hu P, Wan P, Xu A, Yan B, Liu C, Xu Q, Wei Z, Xu J, Liu S, Yang G, Pan Y. Neferine, a novel ROCK1-targeting inhibitor, blocks EMT process and induces apoptosis in non-small cell lung cancer. J Cancer Res Clin Oncol 2023; 149:553-566. [PMID: 35984492 DOI: 10.1007/s00432-022-04280-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Abstract
The compounds derived from Traditional Chinese Medicines have shown various pharmacological activities with unique advantages, especially in the aspect of antitumor. Neferine (Nef), a natural compound, extracted from green seed embryos of Lotus (Nelumbo nucifera Gaertn.) also exerts antitumor effects on cancers. In this study, the effects and mechanisms of Nef on epithelial-to-mesenchymal transition (EMT) process in non-small cell lung cancer (NSCLC) were evaluated. The results showed that Nef had the antitumor effects in vivo and in vitro. Nef significantly suppressed cell viability and induced apoptosis in NSCLC cells, with elevated reactive oxygen species and reduced BCL2/BAX ratio. Nef was also demonstrated to inhibit the invasion, metastasis and EMT process of NSCLC cells, and attenuate EMT-related changes of E-cadherin, N-cadherin and Vimentin at both transcriptional and translational levels. Moreover, we concluded that the inhibitory effects of Nef on EMT was achieved by targeting Rho-associated protein kinase 1, a protein mediating the process of EMT in various cancers. These results showed that Nef had a significant antitumor effect on NSCLC cells by inducing apoptosis and blocking EMT, providing the therapeutical prospect on NSCLC treatment.
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Affiliation(s)
- Po Hu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Peng Wan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Anna Xu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Binghui Yan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Chunmei Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qixuan Xu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhenhuan Wei
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jingyi Xu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Siqi Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Guangming Yang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Yang Pan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Andrews LJ, Thornton ZA, Saleh R, Dawson S, Short SC, Daly R, Higgins JPT, Davies P, Kurian KM. Genomic landscape and actionable mutations of brain metastases derived from non-small cell lung cancer: A systematic review. Neurooncol Adv 2023; 5:vdad145. [PMID: 38130901 PMCID: PMC10734675 DOI: 10.1093/noajnl/vdad145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Background Brain metastases derived from non-small cell lung cancer (NSCLC) represent a significant clinical problem. We aim to characterize the genomic landscape of brain metastases derived from NSCLC and assess clinical actionability. Methods We searched Embase, MEDLINE, Web of Science, and BIOSIS from inception to 18/19 May 2022. We extracted information on patient demographics, smoking status, genomic data, matched primary NSCLC, and programmed cell death ligand 1 expression. Results We found 72 included papers and data on 2346 patients. The most frequently mutated genes from our data were EGFR (n = 559), TP53 (n = 331), KRAS (n = 328), CDKN2A (n = 97), and STK11 (n = 72). Common missense mutations included EGFR L858R (n = 80) and KRAS G12C (n = 17). Brain metastases of ever versus never smokers had differing missense mutations in TP53 and EGFR, except for L858R and T790M in EGFR, which were seen in both subgroups. Of the top 10 frequently mutated genes that had primary NSCLC data, we found 37% of the specific mutations assessed to be discordant between the primary NSCLC and brain metastases. Conclusions To our knowledge, this is the first systematic review to describe the genomic landscape of brain metastases derived from NSCLC. These results provide a comprehensive outline of frequently mutated genes and missense mutations that could be clinically actionable. These data also provide evidence of differing genomic landscapes between ever versus never smokers and primary NSCLC compared to the BM. This information could have important consequences for the selection and development of targeted drugs for these patients.
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Affiliation(s)
- Lily J Andrews
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- Cancer Research Integrative Cancer Epidemiology Programme, University of Bristol, Bristol, UK
| | - Zak A Thornton
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- Cancer Research Integrative Cancer Epidemiology Programme, University of Bristol, Bristol, UK
| | - Ruqiya Saleh
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Sarah Dawson
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Susan C Short
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK
| | - Richard Daly
- Cellular Pathology Department, North Bristol NHS Trust, Bristol, UK
| | - Julian P T Higgins
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Philippa Davies
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- Cancer Research Integrative Cancer Epidemiology Programme, University of Bristol, Bristol, UK
| | - Kathreena M Kurian
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- Cancer Research Integrative Cancer Epidemiology Programme, University of Bristol, Bristol, UK
- Brain Tumour Research Centre, Bristol Medical School, University of Bristol, Bristol, UK
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8
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Zhao W, Zhou W, Rong L, Sun M, Lin X, Wang L, Wang S, Wang Y, Hui Z. Epidermal growth factor receptor mutations and brain metastases in non-small cell lung cancer. Front Oncol 2022; 12:912505. [PMID: 36457515 PMCID: PMC9707620 DOI: 10.3389/fonc.2022.912505] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 10/20/2022] [Indexed: 10/07/2023] Open
Abstract
Studies have revealed that non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations has a high incidence of brain metastases (BMs). However, the association between EGFR mutations and BMs remains unknown. This review summarizes detailed information about the incidence of BMs, clinical and imaging characteristics of BMs, brain surveillance strategies, influence of treatments on BMs, prognosis after BMs, and differences in EGFR mutations between paired primary tumors and BMs in EGFR-mutated NSCLC. The prognostic results demonstrate that patients with mutated EGFR have a higher incidence of BMs, EGFR tyrosine kinase inhibitors (EGFR-TKIs) (afatinib and osimertinib) delay the development of BMs, and patients with mutated EGFR with synchronous or early BMs have better overall survival after BMs than those with wild-type EGFR. The EGFR mutation status of BM sites is not always in accordance with the primary tumors, which indicates that there is heterogeneity in EGFR gene status between paired primary tumors and BMs. However, the EGFR gene status of the primary site can largely represent that of BM sites. Among patients developing synchronous BMs, patients with mutated EGFR are less likely to have central nervous system (CNS) symptoms than patients with wild-type EGFR. However, the possibility of neuro-symptoms is high in patients with metachronous BMs. Patients with mutated EGFR tend to have multiple BMs as compared to patients with wild-type EGFR. Regarding very early-stage NSCLC patients without neuro-symptoms, regular neuroimaging follow-up is not recommended. Among advanced NSCLC patients with EGFR mutation, liberal brain imaging follow-up in the first several years showed more advantages in terms of cost.
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Affiliation(s)
- Wei Zhao
- Department of Radiation Oncology, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Wei Zhou
- Department of Radiation Oncology, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Li Rong
- Department of Gastroenterology, Bishan Hospital of Chongqing medical university/Bishan Hospital of Chongqing, Chongqing, China
| | - Mao Sun
- Department of Radiation Oncology, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Xing Lin
- Department of Radiation Oncology, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Lulu Wang
- Department of Radiation Oncology, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Shiqiang Wang
- Department of Neurosurgery, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Ying Wang
- Department of Radiation Oncology, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, China
| | - Zhouguang Hui
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Ferroptosis-Related Genes Are Potential Therapeutic Targets and the Model of These Genes Influences Overall Survival of NSCLC Patients. Cells 2022; 11:cells11142207. [PMID: 35883650 PMCID: PMC9319237 DOI: 10.3390/cells11142207] [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: 06/08/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSCC) are two of the most common subtypes of non-small cell lung cancer (NSCLC), with high mortality rates and rising incidence worldwide. Ferroptosis is a mode of programmed cell death caused by lipid peroxidation, the accumulation of reactive oxygen species, and is dependent on iron. The recent discovery of ferroptosis has provided new insights into tumor development, and the clinical relevance of ferroptosis for tumor therapy is being increasingly appreciated. However, its role in NSCLC remains to be explored. Methods: The clinical and molecular data for 1727 LUAD and LUSCC patients and 73 control individuals were obtained from the Gene Expression Omnibus (GEO) database and the Cancer Genome Atlas (TCGA) database. Gene expression profiles, copy number variations and somatic mutations of 57 ferroptosis-related genes in 1727 tumor samples from the four datasets were used in a univariate Cox analysis and consensus clustering analysis. The biological signatures of each pattern were identified. A ferroptosis score was generated by combining the univariate Cox regression analysis and random forest algorithm followed by principal component analysis (PCA) and further investigated for its predictive and therapeutic value in LUAD and LUSCC. Results: The expression of 57 ferroptosis-related genes in NSCLC patients differed significantly from that of normal subjects. Based on unsupervised clustering of ferroptosis-related genes, we divided all patients into three ferroptosis expression pattern groups, which showed differences in ferroptosis-associated gene expression patterns, immune cell infiltration levels, prognostic characteristics and enriched pathways. Using the differentially expressed genes in the three ferroptosis expression patterns, a set of 17 ferroptosis-related gene prognostic models was established, which clustered all patients in the cohort into a low score group and a high score group, with marked differences in prognosis (p < 0.001). The high ferroptosis score was significantly associated with positive response to radiotherapy (p < 0.001), high T stage (p < 0.001), high N stage (p < 0.001) and high-grade tumor (p < 0.001) characteristics. Conclusions: The 17 ferroptosis-associated genes show great potential for stratifying LUAD and LUSCC patients into high and low risk groups. Interestingly, a high ferroptosis score in LUAD patients was associated with a good prognosis, whereas a similar high ferroptosis score in LUSCC patients was associated with a poor prognosis. Familiarity with the mechanisms underlying ferroptosis and its implications for the treatment of NSCLC, as well as its effect on OS and PFS, may provide guidance and insights in developing new therapeutic targets for NSCLC.
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10
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Luo X, Xie H, Yang Y, Zhang C, Zhang Y, Li Y, Yang Q, Wang D, Luo Y, Mai Z, Xie C, Yin S. Radiomic Signatures for Predicting Receptor Status in Breast Cancer Brain Metastases. Front Oncol 2022; 12:878388. [PMID: 35734585 PMCID: PMC9207517 DOI: 10.3389/fonc.2022.878388] [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: 02/18/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022] Open
Abstract
Backgrounds A significant proportion of breast cancer patients showed receptor discordance between primary cancers and breast cancer brain metastases (BCBM), which significantly affected therapeutic decision-making. But it was not always feasible to obtain BCBM tissues. The aim of the present study was to analyze the receptor status of primary breast cancer and matched brain metastases and establish radiomic signatures to predict the receptor status of BCBM. Methods The receptor status of 80 matched primary breast cancers and resected brain metastases were retrospectively analyzed. Radiomic features were extracted using preoperative brain MRI (contrast-enhanced T1-weighted imaging, T2-weighted imaging, T2 fluid-attenuated inversion recovery, and combinations of these sequences) collected from 68 patients (45 and 23 for training and test sets, respectively) with BCBM excision. Using least absolute shrinkage selection operator and logistic regression model, the machine learning-based radiomic signatures were constructed to predict the estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) status of BCBM. Results Discordance between the primary cancer and BCBM was found in 51.3% of patients, with 27.5%, 27.5%, and 5.0% discordance for ER, PR, and HER2, respectively. Loss of receptor expression was more common (33.8%) than gain (18.8%). The radiomic signatures built using combination sequences had the best performance in the training and test sets. The combination model yielded AUCs of 0.89, 0.88, and 0.87, classification sensitivities of 71.4%, 90%, and 87.5%, specificities of 81.2%, 76.9%, and 71.4%, and accuracies of 78.3%, 82.6%, and 82.6% for ER, PR, and HER2, respectively, in the test set. Conclusions Receptor conversion in BCBM was common, and radiomic signatures show potential for noninvasively predicting BCBM receptor status.
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Affiliation(s)
- Xiao Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hui Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yadi Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Cheng Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yijun Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yue Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Molecular Diagnostics, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Qiuxia Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Deling Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yingwei Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Zhijun Mai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Chuanmiao Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Shaohan Yin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
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11
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Chava S, Bugide S, Zhang X, Gupta R, Wajapeyee N. Betacellulin promotes tumor development and EGFR mutant lung cancer growth by stimulating the EGFR pathway and suppressing apoptosis. iScience 2022; 25:104211. [PMID: 35494243 PMCID: PMC9048069 DOI: 10.1016/j.isci.2022.104211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/18/2022] [Accepted: 04/04/2022] [Indexed: 12/14/2022] Open
Abstract
Oncogenic mutations in the EGFR gene account for 15-20% of lung adenocarcinoma (LUAD) cases. However, the mechanism for EGFR driven tumor development and growth is not fully understood. Here, using an mRNA expression profiling-based approach we identified betacellulin (BTC) as one the gene upregulated by oncogenic EGFR in an MAP kinase-dependent manner. BTC protein expression was markedly increased in LUAD patient samples compared to normal lung tissue, with higher expression in EGFR-mutant LUAD. BTC was sufficient to transform immortalized mouse cells, initiate tumor development in mice, and promote the survival of immortalized human lung epithelial cells. Conversely, knockdown of BTC inhibited the growth of EGFR-mutant human LUAD cells in culture and their tumor-forming ability in mice. Mechanistically, BTC knockdown resulted in attenuated EGFR signaling and apoptosis induction. Collectively, these results demonstrate a key role of BTC in EGFR-mutant LUAD, with potential therapeutic implications in LUAD and other EGFR-mutant cancers.
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Affiliation(s)
- Suresh Chava
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Suresh Bugide
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Xuchen Zhang
- Department of Pathology, Yale University, New Haven, CT 06510, USA
| | - Romi Gupta
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Narendra Wajapeyee
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35233, USA
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12
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Tonse R, Rubens M, Appel H, Tom MC, Hall MD, Odia Y, McDermott MW, Ahluwalia MS, Mehta MP, Kotecha R. Systematic review and meta-analysis of lung cancer brain metastasis and primary tumor receptor expression discordance. Discov Oncol 2021; 12:48. [PMID: 35201504 PMCID: PMC8777541 DOI: 10.1007/s12672-021-00445-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/27/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Treatment paradigms for metastatic non-small cell lung cancer are increasingly based on biomarker-driven therapies, with the most common alteration being mutation in the epidermal growth factor receptor (EGFR). Change in expression of such biomarkers could have a profound impact on the choice and efficacy of a selected targeted therapeutic, and hence the objective of this study was to analyze discordance in EGFR status in patients with lung cancer brain metastasis (LCBM). METHODS Using PRISMA guidelines, a systematic review was performed of series in the Medline database of biopsied or resected LCBM published before May, 2020. Key words included "lung cancer" and "brain metastasis" combined with "epidermal growth factor receptor/EGFR," and "receptor conversion/discordance or concordance." Weighted random effects models were used to calculate pooled estimates. RESULTS We identified 501 patients from 19 full-text articles for inclusion in this study. All patients underwent biopsy or resection of at least one intracranial lesion to compare to the primary tumor. On primary/LCBM comparison, the weighted pooled estimate for overall EGFR receptor discordance was 10% (95% CI 5-17%). The weighted effects model estimated a gain of an EGFR mutation in a brain metastases in patients with negative primary tumors was 7% (95% CI 4-12%). Alternatively, the weighted effects model estimate of loss of an EGFR mutation in patients with detected mutations in the primary tumor was also 7% (95% CI 4-10%). KRAS testing was also performed on both primary tumors and LCBM in a subset of 148 patients. The weighted effects estimate of KRAS-mutation discordance among LCBM compared to primary tumors was 13% (95% CI 5-27%). The weighted effects estimated of KRAS gain and loss in LCBM was 10% (95% CI 6-18%) and 8% (95% CI 4-15%), respectively. Meta-regression analysis did not find any association with any factors that could be associated with discordances. CONCLUSIONS EGFR and KRAS mutation status discordance between primary tumor and LCBM occurs in approximately 10% and 13% of patients, respectively. Evaluation of LCBM receptor status is key to biomarker-driven targeted therapy for intracranial disease and awareness of subtype switching is critical for those patients treated with systemic therapy alone for intracranial disease.
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Affiliation(s)
- Raees Tonse
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Office 1R203, Miami, FL, 33176, USA
| | - Muni Rubens
- Office of Clinical Research, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
| | - Haley Appel
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Office 1R203, Miami, FL, 33176, USA
| | - Martin C Tom
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Office 1R203, Miami, FL, 33176, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Matthew D Hall
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Office 1R203, Miami, FL, 33176, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Yazmin Odia
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
- Division of Neuro-Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
| | - Michael W McDermott
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
- Department of Neurosurgery, Miami Neuroscience Institute, Baptist Health South Florida, Miami, FL, USA
| | - Manmeet S Ahluwalia
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
- Department of Medical Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
| | - Minesh P Mehta
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Office 1R203, Miami, FL, 33176, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Office 1R203, Miami, FL, 33176, USA.
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.
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Kang Y, Jin Y, Li Q, Yuan X. Advances in Lung Cancer Driver Genes Associated With Brain Metastasis. Front Oncol 2021; 10:606300. [PMID: 33537237 PMCID: PMC7848146 DOI: 10.3389/fonc.2020.606300] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 12/01/2020] [Indexed: 12/24/2022] Open
Abstract
Brain metastasis, one of the common complications of lung cancer, is an important cause of death in patients with advanced cancer, despite progress in treatment strategies. Lung cancers with positive driver genes have higher incidence and risk of brain metastases, suggesting that driver events associated with these genes might be biomarkers to detect and prevent disease progression. Common lung cancer driver genes mainly encode receptor tyrosine kinases (RTKs), which are important internal signal molecules that interact with external signals. RTKs and their downstream signal pathways are crucial for tumor cell survival, invasion, and colonization in the brain. In addition, new tumor driver genes, which also encode important molecules closely related to the RTK signaling pathway, have been found to be closely related to the brain metastases of lung cancer. In this article, we reviewed the relationship between lung cancer driver genes and brain metastasis, and summarized the mechanism of driver gene-associated pathways in brain metastasis. By understanding the molecular characteristics during brain metastasis, we can better stratify lung cancer patients and alert those at high risk of brain metastasis, which helps to promote individual therapy for lung cancer.
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Affiliation(s)
- Yalin Kang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Jin
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qianxia Li
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xianglin Yuan
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Abstract
RAS mutation is the most frequent oncogenic alteration in human cancers. KRAS is the most frequently mutated followed by NRAS. The emblematic KRAS mutant cancers are pancreatic, colorectal, lung adenocarcinomas and urogenital cancers. KRAS mutation frequencies are relatively stable worldwide in various cancer types with the one exception of lung adenocarcinoma. The frequencies of KRAS variant alleles appears cancer type specific, reflecting the various carcinogenic processes. In addition to point mutation KRAS, allelic imbalances are also frequent in human cancers leading to the predominance of a mutant allele. KRAS mutant cancers are characterized by typical, cancer-type-specific co-occurring mutations and distinct gene expression signatures. The heterogeneity of KRAS mutant primary cancers is significant, affecting the variant allele frequency, which could lead to unpredictable branching development in metastases. Selection of minute mutant subclones in the primary tumors or metastases during target therapies can also occur frequently in lung or colorectal cancers leading to acquired resistance. Ultrahigh sensitivity techniques are now routinely available for diagnostic purposes, but the proper determination of mutant allele frequency of KRAS in the primary or metastatic tissues may have larger clinical significance.
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Affiliation(s)
- Jozsef Timar
- 2nd Department of Pathology, Semmelweis University, Budapest, Hungary.
| | - Karl Kashofer
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Auenbruggerpl. 2, 8036, Graz, Austria
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15
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Ahn SJ, Kwon H, Yang JJ, Park M, Cha YJ, Suh SH, Lee JM. Contrast-enhanced T1-weighted image radiomics of brain metastases may predict EGFR mutation status in primary lung cancer. Sci Rep 2020; 10:8905. [PMID: 32483122 PMCID: PMC7264319 DOI: 10.1038/s41598-020-65470-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 04/30/2020] [Indexed: 01/01/2023] Open
Abstract
Identification of EGFR mutations is critical to the treatment of primary lung cancer and brain metastases (BMs). Here, we explored whether radiomic features of contrast-enhanced T1-weighted images (T1WIs) of BMs predict EGFR mutation status in primary lung cancer cases. In total, 1209 features were extracted from the contrast-enhanced T1WIs of 61 patients with 210 measurable BMs. Feature selection and classification were optimized using several machine learning algorithms. Ten-fold cross-validation was applied to the T1WI BM dataset (189 BMs for training and 21 BMs for the test set). Area under receiver operating characteristic curves (AUC), accuracy, sensitivity, and specificity were calculated. Subgroup analyses were also performed according to metastasis size. For all measurable BMs, random forest (RF) classification with RF selection demonstrated the highest diagnostic performance for identifying EGFR mutation (AUC: 86.81). Support vector machine and AdaBoost were comparable to RF classification. Subgroup analyses revealed that small BMs had the highest AUC (89.09). The diagnostic performance for large BMs was lower than that for small BMs (the highest AUC: 78.22). Contrast-enhanced T1-weighted image radiomics of brain metastases predicted the EGFR mutation status of lung cancer BMs with good diagnostic performance. However, further study is necessary to apply this algorithm more widely and to larger BMs.
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Affiliation(s)
- Sung Jun Ahn
- Department of Radiology, Gangnam Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - Hyeokjin Kwon
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea
| | - Jin-Ju Yang
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea
| | - Mina Park
- Department of Radiology, Gangnam Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - Yoon Jin Cha
- Department of Pathology, Gangnam Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - Sang Hyun Suh
- Department of Radiology, Gangnam Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - Jong-Min Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea.
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Huang R, Xu X, Li D, Chen K, Zhan Q, Ge M, Zhou X, Liang X, Guan M. Digital PCR-Based Detection of EGFR Mutations in Paired Plasma and CSF Samples of Lung Adenocarcinoma Patients with Central Nervous System Metastases. Target Oncol 2020; 14:343-350. [PMID: 31161597 DOI: 10.1007/s11523-019-00645-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The presence of specific mutations in the EGFR gene informs the clinical pathway of therapy for patients with lung adenocarcinoma (LAC), including those with central nervous system (CNS) metastases. Plasma circulating cell-free DNA (cfDNA) has been demonstrated to carry the mutational information of LACs, which serves as a biomarker to guide treatment. However, whether the cerebrospinal fluid (CSF) enriches circulating tumor DNA (ctDNA) released from CNS metastatic lesions of LAC, and whether the CSF ctDNA can be used to characterize these lesions remains unknown. OBJECTIVE To explore the EGFR status in CNS metastases of LAC patients, and to guide the treatment of intra- and extracranial tumors in these patients. PATIENTS AND METHODS The EGFR mutational status in the cfDNA from paired CSF and plasma samples from LAC patients with CNS metastases, including 20 brain metastases (BM) and 15 leptomeningeal metastases (LM), was assessed by droplet digital polymerase chain reaction (ddPCR). The clinical outcomes of the EGFR status-based intervention were investigated. RESULTS EGFR mutations were detected in 23/35 LAC patients (65.7%). EGFR mutations in the plasma or CSF were detected in 6/11 (54.5%) and 5/10 (50%) BM patients, and in 4/11 (36.4%) and 9/12(75%) LM patients, respectively. The prevalence of the T790M mutation was significantly higher in plasma (9/23) than in CSF (3/23) samples. The sensitivity and specificity of the ddPCR-based EGFR mutation test in CSF or plasma samples versus the primary tumor samples were 56% and 89% versus 46% and 100%, respectively. Twelve patients received a first-generation EGFR TKI (tyrosine kinase inhibitor) after the detection of sensitive EGFR mutations in their CSF or plasma, and five patients were switched from a first-generation EGFR TKI to osimertinib after the detection of the T790M mutation. CONCLUSIONS The EGFR T790M mutation in plasma cfDNA is a sensitive marker for EGFR TKI resistance when CNS metastases progressed. CSF ctDNA increases the diagnostic validity for EGFR genotyping of lung cancer brain metastasis. ddPCR in CSF and plasma samples could provide less invasive and close monitoring of the EGFR status of LAC patients with CNS metastases.
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Affiliation(s)
- Ruofan Huang
- Department of Oncology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China
| | - Xiao Xu
- Department of Central Laboratory, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China
| | - Dong Li
- Department of Clinical Laboratory, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kun Chen
- Department of Laboratory Medicine, Huashan Hospital North, Fudan University, Shanghai, China
| | - Qiong Zhan
- Department of Oncology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China
| | - Mengxi Ge
- Department of Oncology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China
| | - Xinli Zhou
- Department of Oncology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China
| | - Xiaohua Liang
- Department of Oncology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China.
| | - Ming Guan
- Department of Central Laboratory, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China.
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Zhou B, Xiong J. [Research Progress in Consistency of Driver Gene Status between Primary and Corresponding Metastatic Lesions in Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2020; 23:196-203. [PMID: 32102137 PMCID: PMC7118335 DOI: 10.3779/j.issn.1009-3419.2020.03.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
非小细胞肺癌(non-small cell lung cancer, NSCLC)作为肺癌最常见的病理类型,具有恶性程度高和侵袭性强的特点,晚期极易发生淋巴结和不同脏器转移。近年来,随着精准医学应用的深入,不断出现NSCLC转移部位的耐药和治疗失效为分子靶向治疗带来困扰,研究证实这些可能与肿瘤转移后发生的分子学改变有关。本文旨在阐述NSCLC原发灶与转移部位驱动基因状态,系统性综述两者间驱动基因状态一致性的研究进展,为探讨转移性NSCLC的分子靶向治疗提供新的思路。
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Affiliation(s)
- Bing Zhou
- Department of Pathology, The Affiliated Jiujiang Hospital of Nanchang University, Jiujiang 332000, China
| | - Jianping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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Li W, Wang H, Zhao Z, Gao H, Liu C, Zhu L, Wang C, Yang Y. Emerging Nanotechnologies for Liquid Biopsy: The Detection of Circulating Tumor Cells and Extracellular Vesicles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805344. [PMID: 30589111 DOI: 10.1002/adma.201805344] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/29/2018] [Indexed: 05/18/2023]
Abstract
Liquid biopsy enables noninvasive and dynamic analysis of molecular or cellular biomarkers, and therefore holds great potential for the diagnosis, prognosis, monitoring of disease progress and treatment efficacy, understanding of disease mechanisms, and identification of therapeutic targets for drug development. In this review, the recent progress in nanomaterials, nanostructures, nanodevices, and nanosensors for liquid biopsy is summarized, with a focus on the detection and molecular characterization of circulating tumor cells (CTCs) and extracellular vesicles (EVs). The developments and advances of nanomaterials and nanostructures in enhancing the sensitivity, specificity, and purity for the detection of CTCs and EVs are discussed. Sensing techniques for signal transduction and amplification as well as visualization strategies are also discussed. New technologies for the reversible release of the isolated CTCs and EVs and for single-CTC/EV analysis are summarized. Emerging microfluidic platforms for the integral on-chip isolation, detection, and molecular analysis are also included. The opportunities, challenges, and prospects of these innovative materials and technologies, especially with regard to their feasibility in clinical applications, are discussed. The applications of nanotechnology-based liquid biopsy will bring new insight into the clinical practice in monitoring and treatment of tumor and other significant diseases.
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Affiliation(s)
- Wenzhe Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Huayi Wang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zijian Zhao
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Houqian Gao
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Changliang Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ling Zhu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen Wang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yanlian Yang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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19
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Lee CC, Soon YY, Tan CL, Koh WY, Leong CN, Tey JCS, Tham IWK. Discordance of epidermal growth factor receptor mutation between primary lung tumor and paired distant metastases in non-small cell lung cancer: A systematic review and meta-analysis. PLoS One 2019; 14:e0218414. [PMID: 31216329 PMCID: PMC6583965 DOI: 10.1371/journal.pone.0218414] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/31/2019] [Indexed: 12/19/2022] Open
Abstract
Purpose To evaluate the rate of discordance of epidermal growth factor receptor (EGFR) mutation between primary lung tumor and paired distant metastases in non-small-cell lung cancer (NSCLC). Methods We performed a meta-analysis of 17 studies (518 cases) assessing discordance rates of EGFR mutation in primary tumors and paired distant metastases. We performed subgroup analyses based on EGFR mutation status in primary tumor (mutant or wildtype), site of distant metastasis (bone, central nervous system (CNS) or lung/ pleural), methods of testing (direct sequencing or allele-specific testing) and timing of metastasis (synchronous or metachronous). Results The overall discordance rate in EGFR mutation was low at 10.36% (95% CI = 4.23% to 18.79%) and varied widely between studies (I2 = 83.18%). The EGFR discordance rate was statistically significantly higher in bone metastases (45.49%, 95% CI = 14.13 to 79.02) than CNS (17.26%, 95% CI = 7.64 to 29.74; P = 0.002) and lung/ pleural metastases (8.17%, 95% CI = 3.35 to 14.85; P < 0.001). Subgroup analyses did not demonstrate any significant effect modification on the discordance rates by the EGFR mutation status in primary lung tumor, methods of testing and timing of metastasis. Conclusion The overall discordance rate in EGFR mutation between primary lung tumor and paired distant metastases in NSCLC is low, although higher discordance rates were observed in bone metastases compared with CNS and lung/pleural metastases. Future studies assessing the impact of EGFR mutation discordance on treatment outcomes are required.
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Affiliation(s)
- Chia Ching Lee
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital Singapore, Singapore, Singapore
| | - Yu Yang Soon
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital Singapore, Singapore, Singapore
- * E-mail:
| | - Char Loo Tan
- Department of Pathology, National University Hospital Singapore, Singapore, Singapore
| | - Wee Yao Koh
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital Singapore, Singapore, Singapore
| | - Cheng Nang Leong
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital Singapore, Singapore, Singapore
| | - Jeremy Chee Seong Tey
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital Singapore, Singapore, Singapore
| | - Ivan Weng Keong Tham
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital Singapore, Singapore, Singapore
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20
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Kim KM, Lee SH, Kim SM, Kim NY, Gwak HS, Shin SH, Kwon JW, Yoo H. Discordance of Epidermal Growth Factor Receptor Mutation between Brain Metastasis and Primary Non-Small Cell Lung Cancer. Brain Tumor Res Treat 2019; 7:137-140. [PMID: 31686445 PMCID: PMC6829080 DOI: 10.14791/btrt.2019.7.e44] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 09/27/2019] [Accepted: 10/08/2019] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The aim of this study was to compare epidermal growth factor receptor (EGFR) mutations between non-small cell lung cancer (NSCLC) and corresponding brain metastases (BMs) in Korea society. METHODS From 2011 to 2016, a total of 74 patients underwent surgical resection of a metastatic brain tumor from NSCLC. Among them, we performed retrospective analysis for 46 patients who underwent EGFR sequencing of primary NSCLC tissues. RESULTS Among these 46 cases, 18 (39.1%) cases showed EGFR mutation in primary lung cancer. Detected mutation sites were exon 19 (8 cases), exon 21 (6 cases), exon 18 (1 cases), and multiple mutations (3 cases). In 18 cases of BM, EGFR mutation studies were done. Among them, 8 (25.6%) cases showed mutation on exon 19 (5 cases) or exon 21 (3 cases). To compare EGFR mutation status between primary lung cancer and BM, 18 paired tissues from both NSCLC and matched BM were collected. Four (22.5%) patients were discordant for the status of EGFR between primary and metastatic sites. CONCLUSION EGFR mutations were significantly discordant between primary tumors and corresponding metastases in a significant portion of NSCLC. In treatment of BM of EGFR mutant metastatic NSCLC, due to possibility of discordance, pathologic confirming through brain biopsy is recommended.
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Affiliation(s)
- Kyung Min Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea
| | - Seung Hoon Lee
- Department of Neurosurgery, Eulji University Hospital, Daejeon, Korea
| | - Seung Min Kim
- Department of Neurosurgery, Eulji University Hospital, Daejeon, Korea
| | - Nae Yu Kim
- Department of Internal Medicine, Eulji University Hospital, Daejeon, Korea
| | - Ho Shin Gwak
- Department of Cancer Control, National Cancer Center Hospital, Goyang, Korea
| | - Sang Hoon Shin
- Neuro-Oncology Clinic, National Cancer Center Hospital, Goyang, Korea
| | - Ji Woong Kwon
- Neuro-Oncology Clinic, National Cancer Center Hospital, Goyang, Korea
| | - Heon Yoo
- Neuro-Oncology Clinic, National Cancer Center Hospital, Goyang, Korea.
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21
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Deng G, Chen L, Zhang Y, Fan S, Li W, Lu J, Chen X. Fucosyltransferase 2 induced epithelial-mesenchymal transition via TGF-β/Smad signaling pathway in lung adenocarcinaoma. Exp Cell Res 2018; 370:613-622. [PMID: 30031128 DOI: 10.1016/j.yexcr.2018.07.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 07/08/2018] [Accepted: 07/17/2018] [Indexed: 12/21/2022]
Abstract
Fucosyltransferase 2 (FUT2), the enzyme catalyzing α-1,2-fucosylation in mammals, has been implicated in cancer. The up-regulation of FUT2 has been observed in lung adenocarcinoma (LUAD), and FUT2 can enhance the cell migration and invasion of LUAD cell lines. However, the underlying mechanism of FUT2 in LUAD remains largely unknown. Abundant studies have revealed that epithelial-mesenchymal transition (EMT) played a pivotal role during lung cancer metastasis and progression. In the present study, we showed that knocking down FUT2 in LUAD cell lines increased the expression of E-cadherin and reduced the expression of Vimentin, N-cadherin, TβRII, p-Smad2, p-Smad3 and Snail, which were the makers of EMT. Meanwhile, the expression of E-cadherin was decreased, and the expression of Vimentin was increased by restoring the expression of FUT2 in RNA interference FUT2 (RNAi-FUT2) cells, suggesting that FUT2 enhanced the EMT process in LUAD. Additionally, silencing FUT2 expression can up-regulate E-cadherin and down-regulate Vimentin, significantly attenuated EMT in vivo. Treated with the SIS3, a new-type inhibitor of p-Smad3 of TGF-β signaling, the expression of E-cadherin, Vimentin and Snail were not affected by RNAi-FUT2 cells, indicating that the effect of FUT2 on EMT depended on TGF-β/Smad signaling. Overall, the current results indicated that FUT2 might promote LUAD metastasis through the EMT initiated by TGF-β/Smad signaling. Therefore, FUT2 might be a prognostic factor and therapeutic target for LUAD.
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Affiliation(s)
- Guoqing Deng
- Institute of Glycobiological Engineering/School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lvao Chen
- Institute of Glycobiological Engineering/School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yuqi Zhang
- Institute of Glycobiological Engineering/School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Sairong Fan
- Institute of Glycobiological Engineering/School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wencan Li
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Xiangtan Central Hospital, Xiangtan, Hunan, China
| | - Jianxin Lu
- Institute of Glycobiological Engineering/School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Hangzhou Medical College, Hangzhou, Zhejiang, China.
| | - Xiaoming Chen
- Institute of Glycobiological Engineering/School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine & Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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22
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Hameed DA, Yassa HA, Agban MN, Hanna RT, Elderwy AM, Zwaita MA. Genetic aberrations of the K-ras proto-oncogene in bladder cancer in relation to pesticide exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:21535-21542. [PMID: 29644616 DOI: 10.1007/s11356-018-1840-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 03/20/2018] [Indexed: 06/08/2023]
Abstract
In Egypt, bladder cancer is one of the most popular cancers, accounting for 31% of all cancer cases. It ranks first in males about 16.2% of male cancer. The incidence in rural areas among males is near 32 per 100,000. The exact etiology of bladder cancer is still unknown; K-ras gene is known as a critical DNA target for chemical carcinogens such as pesticide. Some occupational hazard exposure is thought to be directly genotoxic, while others might enhance the mutagenicity and carcinogenicity of directly acting genotoxic agents. Analysis of the relationship between pesticide exposure and mutation in the K-ras gene in human bladder cancer. One hundred patients were diagnosed with bladder cancer and two hundred controls attended the outpatient clinic; after taking consent and filling a questionnaire for age, sex, occupation and pesticide exposure, surgically resected specimens were collected and the samples were used to determine the k-ras mutation. Blood samples were taken to analyze the level of acetylcholinesterase enzyme and level of P53. The present study indicated that pesticide exposure may play a great role in malignant transformation of the bladder cells through mutation in the K-ras gene; there was a significant correlation between the acetylcholinesterase enzyme level and k-ras mutation (p < 0.001). The results revealed that the level of P53 was significantly high in comparison with the control group (p < 0.001). These findings give an alarm to decrease the amount of pesticides used in our area; also, p53 may be used as an indicator to bladder cancer.
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Affiliation(s)
- Diaa A Hameed
- Urology Department, Assiut University, Assiut, Egypt
| | - Heba A Yassa
- Forensic Medicine and Clinical Toxicology Department, Assiut University, Assiut, Egypt.
| | | | - Randa T Hanna
- Biochemistry Department, Assiut University, Assiut, Egypt
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Frankel D, Nanni-Metellus I, Robaglia-Schlupp A, Tomasini P, Guinde J, Barlesi F, Astoul P, Ouafik L, Amatore F, Secq V, Kaspi E, Roll P. Detection of EGFR, KRAS and BRAF mutations in metastatic cells from cerebrospinal fluid. Clin Chem Lab Med 2018; 56:851-856. [PMID: 29306909 DOI: 10.1515/cclm-2017-0527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 12/04/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND In lung adenocarcinoma, molecular profiling of actionable genes has become essential to set up targeted therapies. However, the feasibility and the relevance of molecular profiling from the cerebrospinal fluid (CSF) in the context of meningeal metastasis have been poorly assessed. METHODS We selected patients with stage IV lung adenocarcinoma harbouring metastatic cells in the CSF after cytological analysis. Seven samples from six patients were eligible for molecular testing of epidermal growth factor receptor (EGFR), V-Ki-ras2 Kirsten rat sarcoma viral oncogene homologue (KRAS), v-Raf murine sarcoma viral oncogene homologue B1 (BRAF) and human epidermal growth factor receptor 2 (HER2) mutations using quantitative polymerase chain reaction (PCR) high-resolution melting curve analysis and Sanger sequencing after DNA extraction from the cell pellets of the CSF. RESULTS Five patients showed mutations in one or two actionable genes, two harboured an EGFR mutation (exons 19 and 21), one only a KRAS mutation, one both EGFR and KRAS mutations and one a BRAF mutation. In all cases, the results of mutation testing provided new major information for patient management, leading to therapeutic adaptation. CSF molecular analysis identified mutations not detected in other neoplastic sites for two patients. In one case, the EGFR p.Thr790Met was identified. CSF was also the only sample available for genetic testing for almost all patients at the time of disease progression. CONCLUSIONS When cancer cells are present in the CSF, the molecular profiling from the cell pellets is relevant, as it can detect supplemental or different mutations compared to a previous analysis of the primitive tumour or plasma cell-free DNA and allows the adaptation of the treatment strategy.
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Affiliation(s)
- Diane Frankel
- APHM, Hôpital la Timone, Service de Biologie Cellulaire, Marseille, France.,Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Isabelle Nanni-Metellus
- APHM, Faculté de Médecine Nord, Laboratoire de Transfert d'Oncologie Biologique, Marseille, France
| | - Andrée Robaglia-Schlupp
- APHM, Hôpital la Timone, Service de Biologie Cellulaire, Marseille, France.,Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Pascale Tomasini
- APHM, Multidisciplinary Oncology and Therapeutic Innovations Department, Marseille, France.,Aix Marseille Univ, INSERM, CRO2, Marseille, France
| | - Julien Guinde
- Aix Marseille Univ, INSERM, MMG, Marseille, France.,APHM, Hôpital Nord, Thoracic Oncology, Pleural Diseases, and Interventional Pulmonology, Marseille, France
| | - Fabrice Barlesi
- APHM, Multidisciplinary Oncology and Therapeutic Innovations Department, Marseille, France.,Aix Marseille Univ, INSERM, CRO2, Marseille, France
| | - Philippe Astoul
- APHM, Hôpital Nord, Thoracic Oncology, Pleural Diseases, and Interventional Pulmonology, Marseille, France.,Aix Marseille Univ, Marseille, France
| | - L'Houcine Ouafik
- APHM, Faculté de Médecine Nord, Laboratoire de Transfert d'Oncologie Biologique, Marseille, France.,Aix Marseille Univ, INSERM, CRO2, Marseille, France
| | - Florent Amatore
- APHM, Hôpital Nord, Département de Dermatologie, Marseille, France
| | - Véronique Secq
- APHM, Hôpital Nord, Service Hospitalier d'Anatomie et Cytologie Pathologiques, Marseille, France.,Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Elise Kaspi
- APHM, Hôpital la Timone, Service de Biologie Cellulaire, Marseille, France.,Aix Marseille Univ, INSERM, MMG, Marseille, France
| | - Patrice Roll
- APHM, Hôpital la Timone, Service de Biologie Cellulaire, Marseille, France.,Aix Marseille Univ, INSERM, MMG, Marseille, France
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Assessment of prognostic scores of brain metastases from lung adenocarcinoma with EGFR mutations. J Neurooncol 2017; 133:129-135. [DOI: 10.1007/s11060-017-2411-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 04/03/2017] [Indexed: 10/19/2022]
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25
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Loopback rolling circle amplification for ultrasensitive detection of Kras gene. Talanta 2017; 164:511-517. [DOI: 10.1016/j.talanta.2016.12.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/02/2016] [Accepted: 12/06/2016] [Indexed: 02/06/2023]
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