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Ding X, Shi W, Han B, Chen H, Li J, An J, Zhou L, Xu W, Shi H, Zheng X, Hua Y, Li X. Thyroid transcription factor 1 (TTF-1) negativity as a predictor of unfavorable response to EGFR-TKI therapy in advanced lung adenocarcinoma patients with EGFR mutations. Thorac Cancer 2023; 14:2934-2940. [PMID: 37605791 PMCID: PMC10569904 DOI: 10.1111/1759-7714.15079] [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: 07/12/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND The absence of thyroid transcription factor 1 (TTF-1) is associated with a lower frequency of epidermal growth factor receptor (EGFR) mutations in lung adenocarcinoma (LUAD). The aim of this study was to assess the impact of TTF-1 expression on the clinical response to EGFR-tyrosine kinase inhibitor (TKI) treatment in patients with advanced LUAD. METHODS The data of patients with advanced LUAD who were admitted to the Beijing Tiantan Hospital and Peking University Cancer Hospital (China) between April 2009 and May 2023 was retrospectively analyzed. RESULTS A total of 227 patients diagnosed with advanced LUAD were included, of which 28.2% (64/227) had TTF-1-negative adenocarcinoma, while 54.6% (124/227) harbored EGFR mutations. Negative TTF-1 expression significantly correlated with male sex (68.8% vs. 42.3%, p < 0.001), history of heavy smoking (57.8% vs. 36.2%, p = 0.003), poorly differentiated tumors (86.5% vs. 43.2%, p < 0.001), and lower frequency of EGFR mutations (26.6% vs. 65.6%, p < 0.001) compared with TTF-1 positivity. Multivariable logistic regression showed that low prevalence of EGFR mutations (p < 0.001) and male sex (p = 0.006) were independent predictive factors for the negative expression of TTF-1. Patients lacking TTF-1 also exhibited worse overall response rate (ORR; 23.5% vs. 54.2%, p = 0.019), disease control rate (DCR; 58.8% vs. 89.7%, p = 0.003), and median progression-free survival (PFS; 2.9 vs. 11.6 months, p < 0.001) following treatment with EGFR-TKIs compared to the TTF-1-positive patients with EGFR mutations. CONCLUSIONS Patients with TTF-1-negative and EGFR-mutant LUAD show a diminished response to EGFR-TKIs.
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Affiliation(s)
- Xiaosheng Ding
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Weiwei Shi
- Department of OncologyPLA General HospitalBeijingChina
| | - Bingxuan Han
- Department of Sport RehabilitationShanxi Medical UniversityTaiyuanChina
- Department of Physical EducationShanxi Medical UniversityTaiyuanChina
| | - Hanxiao Chen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic OncologyPeking University Cancer Hospital & InstituteBeijingChina
| | - Jia Li
- Department of PathologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Juan An
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Lili Zhou
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Weiran Xu
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Hui Shi
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Xixi Zheng
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Yichun Hua
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
| | - Xiaoyan Li
- Department of OncologyBeijing Tiantan Hospital, Capital Medical UniversityBeijingChina
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Relationship between brain metastasis and thyroid transcription factor 1. Sci Rep 2023; 13:1945. [PMID: 36732655 PMCID: PMC9895054 DOI: 10.1038/s41598-023-29236-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 02/01/2023] [Indexed: 02/04/2023] Open
Abstract
Brain metastases (BMs) are common in lung adenocarcinomas (ACs). Thyroid transcription factor 1 (TTF-1) is important in the diagnosis of AC. This study aimed to examine the relationship between TTF-1 and BM for the first time in literature. The data of 137 patients with AC that developed BM between 2009 and 2020 were retrospectively analyzed. A total of 137 patients, 120 (87.6%) male, and 17 (12.4%) female were examined. Their mean age was 59.78 ± 0.82 years. The Eastern Cooperative Oncology Group (ECOG) performance score was 0-1 (< 2) for 39 (28.5%) patients and 2-4 (≤ 2) for 98 (71.5%). TTF-1 was positive in 100 (73%) patients and negative in 37 (27%). More than five BMs were present in 102 (74.4%) patients and less than five in 35 (25.6%). All the patients received whole-brain radiotherapy. None of the patients was suitable for surgery or radiosurgery. The median survival time was 6.4 [95% confidence interval (CI), 5.67-7.1] months. The survival time was 7 (95% CI, 5.91-8.09) months for the TTF-1 (+) patients and 5.8 (95% CI, 4.1-7.5) months for the TTF-1 (-) patients. In the univariate analysis, there was a significant relationship between survival time and age (p = 0.047), TTF-1 (p = 0.024), and ECOG performance score (p = 0.002). The multivariance analysis revealed a significant relationship between survival and TTF-1 (p = 0.034) and ECOG score (p = 0.007). We found a correlation between survival time and ECOG performance score and TTF-1. TTF-1 can be used as a biomarker to monitor prognosis in the follow-up and treatment of patients with AC that develop BM.
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Okauchi S, Miyazaki K, Shiozawa T, Satoh H, Hizawa N. Relationship Between TTF-1 Expression and PFS of Pemetrexed-containing Chemotherapy in Non-squamous-NSCLC Patients With and Without Driver Genes. CANCER DIAGNOSIS & PROGNOSIS 2023; 3:53-60. [PMID: 36632586 PMCID: PMC9801456 DOI: 10.21873/cdp.10179] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/11/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND/AIM We performed a retrospective study too clarify whether the presence or absence of driver genes affects the relationship between thyroid transcription factor-1 (TTF-1) expression and response to pemetrexed (PEM) in non-squamous non-small cell lung cancer (non-sq-NSCLC) patients. PATIENTS AND METHODS We reviewed the medical charts of patients treated with PEM-containing chemotherapy during the period from February 2016 to February 2022 at Mito Medical Center-University of Tsukuba, Ryugasaki Saiseikai General Hospital, and University of Tsukuba Hospital. RESULTS During the period of the study, 185 driver gene-negative patients negative, and 65 driver gene-positive patients were evaluated. Among the 165 driver gene-negative patients, progression free survival (PFS) of TTF-1-expressing patients treated with PEM-containing chemotherapy was significantly longer compared to that of TTF-1-negative patients. In the analysis of 65 driver gene-positive patients, the PFS of TTF-1-positive patients treated with PEM-containing chemotherapy did not differ significantly from that of TTF-1-negative patients. There was no significant difference in PFS between driver gene-negative and driver gene-positive patients treated with PEM-containing chemotherapy. Comparison between four groups defined according to the presence of driver gene and TTF-1 expression indicated shorter PFS only in 'driver gene-negative and TTF-1-negative' patients. CONCLUSION In driver gene-positive non-sq NSCLC patients, expression of TTF does not affect the survival outcome of PEM-containing-chemotherapy. In other words, in these patients, second-line or later-line PEM-containing chemotherapy after development of resistance for specific-tyrosine kinase inhibitor could be expected to have the same level of efficacy as first-line PEM containing chemotherapy in driver gene-negative, TTF-1-positive non-sq NSCLC patients.
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Affiliation(s)
- Shinichiro Okauchi
- Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Japan
| | - Kunihiko Miyazaki
- Division of Respiratory Medicine, Ryugasaki Saiseikai General Hospital, Ryugasaki, Japan
| | - Toshihiro Shiozawa
- Division of Respiratory Medicine, Faculty of Clinical Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiroaki Satoh
- Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Japan
| | - Nobuyuki Hizawa
- Division of Respiratory Medicine, Faculty of Clinical Medicine, University of Tsukuba, Tsukuba, Japan
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Huang YL, Chen YJ, Juan YH, Wu SG, Chung KP. Prognostic significance of dynamin-related protein 1 expression in advanced lung adenocarcinoma. Pathol Res Pract 2022; 234:153931. [PMID: 35523103 DOI: 10.1016/j.prp.2022.153931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/13/2022] [Accepted: 03/22/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Dynamin-related protein 1 (DRP1) is a key regulator of mitochondrial fission and is activated by phosphorylation at serine 616. We previously demonstrated that DRP1 activation is regulated by epidermal growth factor receptor (EGFR) signaling and multiple kinases in lung adenocarcinoma, and is significantly associated with an increased risk of postoperative recurrence in early stage lung adenocarcinoma. However, it is unclear whether DRP1 activation is associated with worse prognosis in patients with advanced lung adenocarcinoma. This study is aimed to examine whether P(S616)-DRP1 expression is significantly related to the survival of patients with advanced lung adenocarcinoma. MATERIALS AND METHODS Biopsy samples were obtained from patients with stage IV lung adenocarcinoma. The activation status of DRP1 in cancer cells was quantified based on the immunohistochemical stain of phosphorylated DRP1 at serine 616 [P(S616)-DRP1]. Results of EGFR, ALK, ROS1, and KRAS mutations were retrieved from the medical records. The staining intensity and the histological scores (H-scores) of P(S616)-DRP1 were analyzed for association with progression-free survival (PFS) under first-line tyrosine-kinase inhibitors (TKIs) and with overall survival (OS). RESULTS Overall, 123 patients with stage IV lung adenocarcinoma constituted the study population, and 90 (73.2%) patients received TKIs as the first-line treatments. The median P(S616)-DRP1H-score was used to dichotomize the study population into the high (n = 61) and low (n = 62) DRP1 activation groups. DRP1 was significantly less phosphorylated in lung adenocarcinoma with EGFR, ALK, ROS1, and KRAS mutations. Importantly, in patients who received first-line TKIs, DRP1 phosphorylation was not significantly correlated with PFS and OS. Multivariate Cox proportional hazard models showed that high DRP1 activation in cancer cells was not significantly associated with worse OS in the study population (adjusted hazard ratio: 1.402, 95% confidence interval: 0.865-2.271, p = 0.170). Similar results were obtained in the analysis based on the intensities of P(S616)-DRP1 in cancer cells. CONCLUSIONS Our data demonstrate that DRP1 phosphorylation is not related to the prognosis of patients with advanced lung adenocarcinoma.
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Affiliation(s)
- Yen-Lin Huang
- Department of Pathology, National Taiwan University Cancer Center, Taipei, Taiwan; Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Jung Chen
- Department of Laboratory Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Hsiu Juan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shang-Gin Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Kuei-Pin Chung
- Department of Laboratory Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan.
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Worldwide Prevalence of Epidermal Growth Factor Receptor Mutations in Non-Small Cell Lung Cancer: A Meta-Analysis. Mol Diagn Ther 2021; 26:7-18. [PMID: 34813053 PMCID: PMC8766385 DOI: 10.1007/s40291-021-00563-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2021] [Indexed: 01/22/2023]
Abstract
Background Identification of variable epidermal growth factor receptor (EGFR) gene mutations in non-small cell lung cancer (NSCLC) is important for the selection of appropriate targeted therapies. This meta-analysis was conducted to provide a worldwide overview of EGFR mutation and submutation (specifically exon 19 deletions, exon 21 L858R substitutions, and others) prevalence, and identify important covariates that influence EGFR mutation status in patients with advanced NSCLC to address this clinical data gap. Methods Embase® and MEDLINE® in Ovid were searched for studies published between 2004 and 2019 with cohorts of ≥ 50 adults with EGFR mutations, focusing on stage III/IV NSCLC (≤ 20% of patients with stage I/II NSCLC). Linear mixed-effects models were fitted to EGFR mutation endpoints using logistic transformation (logit), assuming a binomial distribution. The model included terms for an intercept reflecting European studies and further additive terms for other continents. EGFR submutations examined were exon 19 deletions, exon 21 L858R substitutions, and others. Results Of 3969 abstracts screened, 57 studies were included in the overall EGFR mutation analysis and 74 were included in the submutation analysis relative to the overall EGFR mutation population (Europe, n = 12; Asia, n = 51; North America, n = 5; Central America, n = 1; South America, n = 1; Oceania, n = 1; Global, n = 3). The final overall EGFR mutations model estimated Asian and European prevalence of 49.1% and 12.8%, respectively, and included an additive covariate for the proportion of male patients in a study. There were no significant covariates in the submutation analyses. Most submutations were actionable: exon 19 deletions (49.2% [Asia]; 48.4% [Europe]); exon 21 L858R substitutions (41.1% [Asia]; 29.9% [Europe]). Conclusions Although EGFR mutation prevalence was higher in Asian than Western countries, data support worldwide testing for EGFR overall and submutations to inform appropriate targeted treatment decisions. Supplementary Information The online version contains supplementary material available at 10.1007/s40291-021-00563-1.
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Nakra T, Singh V, Nambirajan A, Malik PS, Mohan A, Jain D. Correlation of TTF-1 immunoexpression and EGFR mutation spectrum in non-small cell lung carcinoma. J Pathol Transl Med 2021; 55:279-288. [PMID: 34233113 PMCID: PMC8353134 DOI: 10.4132/jptm.2021.05.10] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/10/2021] [Indexed: 01/18/2023] Open
Abstract
Background Thyroid transcription factor (TTF-1) is a diagnostic marker expressed in 75%–85% of primary lung adenocarcinomas (ACs). Activating mutations in the tyrosine kinase domain of the epidermal growth factor receptor (EGFR) gene is the most common targetable driver alteration in lung AC. Previous studies have shown a positive correlation between TTF-1 and EGFR mutation status. We aimed to determine the predictive value of TTF-1 immunoexpression for underlying EGFR mutation status in a large Indian cohort. Methods This retrospective designed study was conducted with medical record data from 2011 to 2020. All cases of primary lung AC and non–small cell lung carcinoma not otherwise specified (NSCLC, NOS) with known TTF-1 expression diagnosed by immunohistochemistry using 8G7G3/1 antibodies and EGFR mutation status diagnosed by quantitative polymerase chain reaction were retrieved, reviewed, and theresults were analyzed. Results Among 909 patient samples diagnosed as lung AC and NSCLC, NOS, TTF-1 was positive in 76.8% cases (698/909) and EGFR mutations were detected in 29.6% (269/909). A strong positive correlation was present between TTF-1 positivity and EGFR mutation status (odds ratio, 3.61; p < .001), with TTF-1 positivity showing high sensitivity (90%) and negative predictive value (87%) for EGFR mutation. TTF-1 immunoexpression did not show significant correlation with uncommon/dual EGFR mutations (odds ratio, 1.69; p = .098). EGFR–tyrosine kinase inhibitor therapy was significantly superior to chemotherapy among EGFR mutant cases irrespective of TTF-1 status; however, no significant differences among survival outcomes were observed. Conclusions Our study confirms a strong positive correlation between TTF-1 expression and common EGFR mutations (exon 19 deletion and exon 21 L858R) in advanced lung AC with significantly high negative predictive value of TTF-1 for EGFR mutations.
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Affiliation(s)
- Tripti Nakra
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Varsha Singh
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Aruna Nambirajan
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhat Singh Malik
- Department of Medical Oncology, Dr B.R. Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Anant Mohan
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences, New Delhi, India
| | - Deepali Jain
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
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Lin YY, Lin LY, Hang JF, Lin CH, Ho HL, Chou TY. Programmed death-ligand 1 (PD-L1)/thyroid transcription factor-1 double immunohistochemical staining facilitates scoring of tumor PD-L1 expression in cytopathology specimens from lung adenocarcinoma patients. Cancer Cytopathol 2020; 129:148-155. [PMID: 32976705 DOI: 10.1002/cncy.22359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/26/2020] [Accepted: 08/26/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Immune checkpoint inhibitor therapy has revolutionized lung adenocarcinoma therapy. Treatment with antibodies against the immune checkpoint molecules programmed death-1 (PD-1) and programmed death-ligand 1 (PD-L1) can induce a durable response in a subset of patients. Immunohistochemistry characterization of tumor PD-L1 expression using either a histopathology specimen or a cytopathology specimen has been shown to correlate with treatment response. However, the current practice relies on pathologists' visual estimation of tumor PD-L1 staining, which can be variable in certain conditions. Highlighting tumor cells via double immunostaining with PD-L1 and thyroid transcription factor-1 (TTF-1) may improve estimation accuracy. METHODS We performed PD-L1 single staining and PD-L1/TTF-1 double staining in 42 pairs of cytopathology and histopathology specimens from lung adenocarcinoma patients. An experienced pathologist visually estimated PD-L1 expression in each case and placed tumor PD-L1 expression into 1 of 3 categories: <1%, 1%-49%, or ≥50%. A medical technologist also performed estimations of the same cases based on a count of 200 tumor cells, and the results were compared. RESULTS PD-L1/TTF-1 double immunohistochemistry could better identify the PD-L1-positive tumor cells in cytopathology specimens compared with PD-L1 single staining. The concordance of PD-L1 expression categorization between the pathologist's visual estimation and the medical technologist's counting was increased by double staining in cytopathology specimens (Cohen's weighted kappa: single stain, 0.784; double stain, 0.880). Double staining reduced possible error in the pathologist's visual estimation of PD-L1 expression from 9.5% to 4.8%. The benefit was not observed in histopathology specimens. CONCLUSION A simple PD-L1/TTF-1 double immunohistochemistry technique can be applied successfully to cytopathology specimens in better identifying patients who can potentially benefit from immune checkpoint blockade treatment.
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Affiliation(s)
- Yen-Yu Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Cancer Progression Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Li-Ya Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jen-Fan Hang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chia-Hung Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsiang-Ling Ho
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Teh-Ying Chou
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Cancer Progression Research Center, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
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Takeuchi A, Oguri T, Yamashita Y, Sone K, Fukuda S, Takakuwa O, Uemura T, Maeno K, Inoue Y, Yamamoto S, Nishiyama H, Fukumitsu K, Kanemitsu Y, Tajiri T, Ohkubo H, Takemura M, Ito Y, Niimi A. Value of TTF-1 expression in non-squamous non-small-cell lung cancer for assessing docetaxel monotherapy after chemotherapy failure. Mol Clin Oncol 2020; 13:9. [PMID: 32754323 DOI: 10.3892/mco.2020.2080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 05/26/2020] [Indexed: 12/26/2022] Open
Abstract
Docetaxel is one of the standard second/third-line treatments for non-small-cell lung cancer (NSCLC) following a failed response to prior cytotoxic chemotherapy. The predictive biomarker for the effectiveness of docetaxel therapy remains undetermined. However, thyroid transcription factor-1 (TTF-1) is known to be a good prognostic factor for a variety of chemotherapies. To investigate the association between TTF-1 expression and docetaxel monotherapy outcome, 82 patients with non-squamous NSCLC who received second/third-line docetaxel monotherapy were retrospectively screened. All backgrounds were well-balanced whether or not tumor TTF-1 was expressed, and the present clinical outcomes were similar to those reported by previous clinical studies. A better clinical outcome was indicated in TTF-1 positive compared with TTF-1 negative patients, with disease control rates of 69% vs. 42%, respectively (P=0.03) and median overall survival of 393 days vs. 221.5 days, respectively (P<0.01). Furthermore, progression free survival tended to be longer in TTF-1 positive compared with TTF-1 negative patients (median, 100 days vs. 67 days; P=0.09). Multivariate analysis revealed that TTF-1 positivity was a unique significant predictor for assessing overall survival after docetaxel monotherapy. TTF-1 positivity may be useful for predicting survival outcome in patients who received docetaxel monotherapy after failure of prior chemotherapy.
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Affiliation(s)
- Akira Takeuchi
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Tetsuya Oguri
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan.,Department of Education and Research Center for Community Medicine, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yoriko Yamashita
- Experimental Pathology and Tumor Biology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Kazuki Sone
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Satoshi Fukuda
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Osamu Takakuwa
- Education and Research Center for Advanced Medicine, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Takehiro Uemura
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Ken Maeno
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yoshitsugu Inoue
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Sayaka Yamamoto
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Hirono Nishiyama
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Kensuke Fukumitsu
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yoshihiro Kanemitsu
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Tomoko Tajiri
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Hirotsugu Ohkubo
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Masaya Takemura
- Department of Education and Research Center for Community Medicine, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yutaka Ito
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Akio Niimi
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
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Li X, Yin L, Zhao Y, He M, Qi Q, Sun Y, Li H, Evison M. The prognostic effect of TTF-1 expression in the Chinese population of patients with advanced lung adenocarcinomas. Transl Lung Cancer Res 2020; 9:82-89. [PMID: 32206556 PMCID: PMC7082290 DOI: 10.21037/tlcr.2019.12.29] [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] [Indexed: 11/10/2022]
Abstract
Background Thyroid transcription factor 1 (TTF-1), which is usually expressed by lung adenocarcinomas and small cell carcinomas, is usually used to distinguish adenocarcinoma and small cell carcinoma from cells of another type of lung cancer. We examined the association between TTF-1 expression and overall survival between patients with stage IV pulmonary adenocarcinoma to investigate the role of TTF-1 as a predictive and/or prognostic tumor marker in patients with advanced lung adenocarcinomas. Methods Analysis of the clinicopathologic features, treatment regimens, and overall survival of 209 lung adenocarcinoma patients who had been detected for TTF-1 expression and received consecutive treatments in the Affiliated Hospital of Qingdao University. Results TTF-1 expression was positive in 166 (79%) and negative in 43 (21%) patients who were reviewed. Moreover, there was no significant difference between the clinicopathologic features of TTF-1 positive and TTF-1 negative tumors. In the multivariable review, the overall survival of TTF-1 positive tumor patients was significantly longer than that of TTF-1 negative tumor patients [22.7 vs. 11.8 months (P<0.0001)], increasing the prognostic effect of Karnofsky performance status and receiving first-line chemotherapy or targeted therapy. Positive TTF-1 and negative TTF-1 patients receiving pemetrexed-based chemotherapy improved the duration of treatment compared to those receiving non-pemetrexed chemotherapy. Conclusions TTF-1 expression was associated with an improved survival in patients with advanced lung adenocarcinomas. Both patients, either TTF-1 positive or negative, could benefit from the first-line chemotherapy or pemetrexed treatment option. However, as discovered by our investigation, TTF-1 cannot forecast a portion of the lung adenocarcinomas that had a selective sensitivity to pemetrexed.
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Affiliation(s)
- Xueying Li
- Department of Cancer, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Ling Yin
- Department of Cancer, Putuo District, Liqun Hospital, Shanghai 200072, China
| | - Yamei Zhao
- Department of Radiotherapy and Chemotherapy, Hanting District People's Hospital, Weifang 261000, China
| | - Man He
- Department of Cancer, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Qi Qi
- Department of Cancer, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yang Sun
- Department of Cancer, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Hongmei Li
- Department of Cancer, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Matthew Evison
- North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
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Yang B, Ji H, Ge Y, Chen S, Zhu H, Lu G. Correlation Study of 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in Pathological Subtypes of Invasive Lung Adenocarcinoma and Prognosis. Front Oncol 2019; 9:908. [PMID: 31620365 PMCID: PMC6759513 DOI: 10.3389/fonc.2019.00908] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 09/02/2019] [Indexed: 12/25/2022] Open
Abstract
Purpose: To investigate the correlation between 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) metabolic parameters and clinicopathological factors in pathological subtypes of invasive lung adenocarcinoma and prognosis. Patients and Methods: Metabolic parameters and clinicopathological factors from 176 consecutive patients with invasive lung adenocarcinoma between August 2008 and August 2016 who underwent 18F-FDG PET/CT examination were retrospectively analyzed. Invasive lung adenocarcinoma was divided into five pathological subtypes:lepidic predominant adenocarcinoma (LPA), acinar predominant adenocarcinoma (APA), papillary predominant adenocarcinoma (PPA), solid predominant adenocarcinoma (SPA), and micropapillary predominant adenocarcinoma (MPA). The differences in metabolic parameters [maximal standard uptake value (SUVmax), mean standard uptake value (SUVmean), total lesion glycolysis (TLG), and metabolic tumor volume (MTV)] and tumor diameter for different pathological subtypes were analyzed. Patients were divided into two groups according to their prognosis: good prognosis group (LPA, APA, PPA) and poor prognosis group (SPA, MPA). Logistic regression was used to filter predictors and construct a predictive model, and areas under the receiver operating curve (AUC) were calculated. Cox regression analysis was performed on prognostic factors. Results: 82 (46.6%) females and 94 (53.4%) males of patients with invasive lung adenocarcinoma were enrolled in this study. Metabolic parameters and tumor diameter of different pathological subtype had statistically significant (P < 0.05). The predictive model constructed using independent predictors (Distant metastasis, Ki-67, and SUVmax) had good classification performance for both groups. The AUC for SUVmax was 0.694 and combined with clinicopathological factors were 0.745. Cox regression analysis revealed that Stage, TTF-1, MTV, and pathological subtype were independent risk factors for patient prognosis. The hazard ratio (HR) of the poor prognosis group was 1.948 (95% CI 1.042–3.641) times the good prognosis group. The mean survival times of good and poor prognosis group were 50.2621 (95% CI 47.818–52.706) and 35.8214 (95% CI 27.483–44.159) months, respectively, while the median survival time was 47.00 (95% CI 45.000–50.000) and 31.50 (95% CI 23.000–49.000) months, respectively. Conclusion: PET/CT metabolic parameters combined with clinicopathological factors had good classification performance for the different pathological subtypes, which may provide a reference for treatment strategies and prognosis evaluation of patients.
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Affiliation(s)
- Bin Yang
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hengshan Ji
- Department of Nuclear Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | | | - Sui Chen
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hong Zhu
- Department of Nuclear Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guangming Lu
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Yang B, Wang QG, Lu M, Ge Y, Zheng YJ, Zhu H, Lu G. Correlations Study Between 18F-FDG PET/CT Metabolic Parameters Predicting Epidermal Growth Factor Receptor Mutation Status and Prognosis in Lung Adenocarcinoma. Front Oncol 2019; 9:589. [PMID: 31380265 PMCID: PMC6657738 DOI: 10.3389/fonc.2019.00589] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: This study assessed the ability of metabolic parameters from 18Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) and clinicopathological data to predict epidermal growth factor receptor (EGFR) expression/mutation status in patients with lung adenocarcinoma and to develop a prognostic model based on differences in EGFR expression status, to enable individualized targeted molecular therapy. Patients and Methods: Metabolic parameters and clinicopathological data from 200 patients diagnosed with lung adenocarcinoma between July 2009 and November 2016, who underwent 18F-FDG PET/CT and EGFR mutation testing, were retrospectively evaluated. Multivariate logistic regression was applied to significant variables to establish a prediction model for EGFR mutation status. Overall survival for both mutant and wild-type EGFR was analyzed to establish a multifactor Cox regression model. Results: Of the 200 patients, 115 (58%) exhibited EGFR mutations and 85 (42%) were wild-type. Among selected metabolic parameters, metabolic tumor volume (MTV) demonstrated a significant difference between wild-type and mutant EGFR mutation status, with an area under the receiver operating characteristic curve (AUC) of 0.60, which increased to 0.70 after clinical data (smoking status) were combined. Survival analysis of wild-type and mutant EGFR yielded mean survival times of 34.451 (95% CI 28.654-40.249) and 53.714 (95% CI 44.331-63.098) months, respectively. Multivariate Cox regression revealed that mutation type, tumor stage, and thyroid transcription factor-1 (TTF-1) expression status were the main factors influencing patient prognosis. The hazard ratio for mutant EGFR was 0.511 (95% CI 0.303-0.862) times that of wild-type, and the risk of death was lower for mutant EGFR than for wild-type. The risk of death was lower in TTF-1-positive than in TTF-1-negative patients. Conclusion: 18F-FDG PET/CT metabolic parameters combined with clinicopathological data demonstrated moderate diagnostic efficacy in predicting EGFR mutation status and were associated with prognosis in mutant and wild-type EGFR non-small-cell lung cancer (NSCLC), thus providing a reference for individualized targeted molecular therapy.
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Affiliation(s)
- Bin Yang
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Qing Gen Wang
- Department of Medical Imaging, Jinling Hospital, Clinical School of Southern Medical University, Nanjing, China
| | - Mengjie Lu
- Department of Medical Imaging, Jinling Hospital, Nanjing, China
| | | | - Yu Jun Zheng
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hong Zhu
- Department of Nuclear Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guangming Lu
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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12
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Comparing clinicopathological features and prognosis of primary pulmonary invasive mucinous adenocarcinoma based on computed tomography findings. Cancer Imaging 2019; 19:47. [PMID: 31292000 PMCID: PMC6617846 DOI: 10.1186/s40644-019-0236-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 07/01/2019] [Indexed: 02/08/2023] Open
Abstract
Objective To evaluate the relationship between clinicopathologic characteristics and prognosis in patients with invasive mucinous adenocarcinoma (IMA) of the lung. Methods A total of 68 patients who underwent surgical resection for primary lung IMA were reviewed during the period of 2009 and 2017. Tumors were classified as solitary-type or pneumonic-type according to the computed tomography (CT) findings. Cox proportional hazards model was used to assess the effects of clinicopathological characteristics on univariate and multivariable analyses of disease-free survival (DFS). Results Solitary-type was found in 54 patients, while pneumonic-type was found in 14 patients. The patients’ age varied between 56 and 68 years (patients’ median age was 61 years). Besides, 50 patients had T1/T2 tumor stage (73.5%). Compared with solitary-type, higher T stage, N stage, and pathological stage (P < 0.001) were found in pneumonic-type. Moreover, the survival analysis showed that the pneumonic-type had a significantly poorer DFS compared with solitary-type (P = 0.004). Univariate analysis showed that pneumonic pattern on CT scan, T stage, pathologic stage, and thyroid transcription factor-1 (TTF-1) were significant predictive factors of survival (P = 0.011, 0.014, 0.013, 0.029, respectively). Multivariate analysis further indicated that pneumonic-type was the only independent prognostic factor for poor survival [hazard ratio (HR) = 6.764, 95% confidence interval (CI): 1.563–29.269, P = 0.011]. Conclusions Based on CT findings, the solitary-type IMA is associated with a lower stage and better prognosis compared with the pneumonic-type IMA.
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Thyroid transcription factor-1 as a prognostic indicator for stage IV lung adenocarcinoma with and without EGFR-sensitizing mutations. BMC Cancer 2019; 19:574. [PMID: 31196060 PMCID: PMC6567596 DOI: 10.1186/s12885-019-5792-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 06/04/2019] [Indexed: 12/14/2022] Open
Abstract
Background Thyroid transcription factor (TTF)-1 expression is a diagnostic marker and a good prognostic indicator for lung adenocarcinoma. However, its good prognostic ability might be due to epidermal growth factor receptor (EGFR)-sensitizing mutations as shown by the positive correlation between TTF-1 expression and EGFR mutations. We explored the prognostic impact of TTF-1 expression according to EGFR-sensitizing mutation status in lung adenocarcinoma patients. Methods We conducted a retrospective cohort study of patients with stage IV lung adenocarcinoma. Data were extracted from the lung cancer registry of Hallym University Medical Centers (three hospitals) in Korea between March 2006 and March 2016. Results Overall, 173 patients were included. EGFR-sensitizing mutations were detected in 84 (51.4%) patients. TTF-1 expression was positive in 139 (80.3%) patients; it was significantly correlated with EGFR-sensitizing mutations (p < 0.001). TTF-1-positive lung adenocarcinoma patients had longer overall survival (OS) than those who were TTF-1 negative (19.3 vs. 5.8 months, p < 0.001). In a Cox regression analysis, TTF-1 positivity, Stage IV M1a, good performance status, and EGFR-sensitizing mutations were independently associated with prolonged OS. In the subgroup of wild-type EGFR adenocarcinoma patients, TTF-1 positivity was also a good prognostic indicator for OS and progression-free survival (PFS) after first-line cytotoxic chemotherapy. Conclusions TTF-1 expression was a good prognostic indicator for OS and PFS in stage IV lung adenocarcinoma patients with and without EGFR-sensitizing mutations. Electronic supplementary material The online version of this article (10.1186/s12885-019-5792-0) contains supplementary material, which is available to authorized users.
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Kim HS, Kim JH, Han B, Choi DR. Correlation of Thyroid Transcription Factor-1 Expression with EGFR Mutations in Non-Small-Cell Lung Cancer: A Meta-Analysis. ACTA ACUST UNITED AC 2019; 55:medicina55020041. [PMID: 30736438 PMCID: PMC6410251 DOI: 10.3390/medicina55020041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/04/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES This meta-analysis investigated the relationship between thyroid transcription factor-1 (TTF-1) expression and epidermal growth factor receptor (EGFR) mutations in non-small-cell lung cancer (NSCLC) to clarify whether TTF-1 can be a potential surrogate marker for EGFR mutation status in advanced NSLCL. METHODS A systematic searching of databases, including PubMed, EMBASE, Cochrane Library, and Google Scholar, was performed to identify studies assessing the correlation of TTF-1 expression with EGFR mutations. From 17 studies, 9764 patients were included in the combined analysis of odds ratio (OR) for the correlation between TTF-1 expression and EGFR mutations. RESULTS Compared with NSCLCs showing negative TTF-1 expression, tumors harboring TTF-1 overexpression showed a significantly higher rate of EGFR mutations (OR = 5.19, 95% confidence interval: 3.60⁻7.47, p < 0.00001). This correlation was observed in both subgroups of East Asian (OR = 4.33, 95% CI: 3.46⁻5.41, p < 0.00001) and European patients (OR = 4.64, 95% CI: 1.41⁻15.28, p < 0.01). In addition, TTF-1 expression was significantly associated with EGFR mutations in exon 19 (OR = 4.63, 95% CI: 2.89⁻7.41, p < 0.00001) as well as exon 21 (OR = 3.16, 95% CI: 1.04⁻9.60, p = 0.04). CONCLUSIONS This meta-analysis demonstrates a significant correlation between TTF-1 expression and EGFR mutations in patients with NSCLC. The status of TTF-1 expression may be a biomarker to guide anticancer treatment in patients with NSCLC and unknown EGFR mutation status.
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Affiliation(s)
- Hyeong Su Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Kangnam Sacred-Heart Hospital, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07441, Korea.
| | - Jung Han Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Kangnam Sacred-Heart Hospital, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07441, Korea.
| | - Boram Han
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Anyang 14068, Korea.
| | - Dae Ro Choi
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Anyang 14068, Korea.
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Li M, Li C, Ke L, Zhan M, Cheng M. Significance of the epidermal growth factor receptor mutation status and differences among molecular subgroups in surgically resected lung microinvasive adenocarcinoma. Oncol Lett 2018; 16:7057-7067. [PMID: 30546439 DOI: 10.3892/ol.2018.9539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 08/24/2018] [Indexed: 11/05/2022] Open
Abstract
Lung microinvasive adenocarcinoma (MIA) is a newly-defined subtype of early stage non-small cell lung cancer (NSCLC). However, its epidermal growth factor receptor (EGFR) mutation status and clinical significance remain unclear. The present study aimed to determine EGFR mutation characteristics and identify their significance in patients with resected lung MIA. The present study also analyzed clinicopathological differences between EGFR molecular subgroups defined as 19Del and L858R. The present study examined EGFR mutations in 79 consecutive lung MIA resection specimens and compared the differences in clinicopathological features between the EGFR wild-type and mutation groups, as well as between the 19Del and L858R subgroups. EGFR mutations were detected in 60 (75.95%) tumors. The most common mutations were 19Del (28 cases; 35.44%) and L858R (30 cases; 37.97%). Two patients harbored rare mutations and one of them had a concomitant double mutation. EGFR mutations were significantly associated with microinvasion component, thyroid transcription factor 1 (TTF-1) expression, intratumoral fibrosis and inflammatory cell infiltration. Subgroup evaluation indicated that there was a significant association between 19Del and tumor size, maximum diameter of microinvasion, presence of intratumoral fibrosis and inflammatory cell infiltration. Similar associations were observed for the L858R subgroup, and L858R was associated with TTF-1 expression. In particular, 19Del occurred more frequently in MIA with a smaller size, with a smaller microinvasive area, without TTF-1 expression, and lacking intratumoral fibrosis and inflammatory cell infiltration. By contrast, L858R was detected more frequently in MIA with entirely different tumor features. In conclusion, the results of the present study indicated that surgically resected MIA cases harboring different EGFR gene statuses exhibit distinct clinicopathological features. Significant differences in pathological features associated with the tumor microenvironment were identified in MIA with 19Del or L858R mutations. Therefore, the present study proposed that MIA should be classified into molecular subgroups based on EGFR mutation subtypes. The molecular sub-classification should be taken into account for prognostic evaluation and clinical management of MIA.
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Affiliation(s)
- Ming Li
- Department of Pathology, Anhui Provincial Hospital, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Chuanying Li
- Department of Pathology, Anhui Provincial Hospital, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Li Ke
- Department of Thoracic Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Mali Zhan
- Department of Pathology, Anhui Provincial Hospital, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Min Cheng
- The Gerontology Institute of Anhui Province, Anhui Provincial Hospital, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
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Kim JH, Kim HS, Kim BJ, Han B, Choi DR, Kwon JH. Prognostic Impact of TTF-1 Expression in Non-Squamous Non-Small-Cell Lung Cancer: A Meta-Analysis. J Cancer 2018; 9:4279-4286. [PMID: 30519330 PMCID: PMC6277629 DOI: 10.7150/jca.26830] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 08/23/2018] [Indexed: 12/18/2022] Open
Abstract
Thyroid transcription factor-1 (TTF-1) is overexpressed in up to 95% of primary lung adenocarcinoma while negative for almost all squamous cell carcinomas. TTF-1 expression has been investigated as a prognostic factor in non-small-cell lung cancer (NSCLC) with conflicting results. We conducted this meta-analysis to gain a better insight into the prognostic role of TTF-1 in patients only with non-squamous (non-SQ) NSCLC. A systematic computerized search of the electronic databases including PubMed, PMC, EMBASE, Web of Science, and Cochrane Library was performed. From 21 studies, 6,451 patients were included in the combined analysis of hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival. Compared with patients with non-SQ NSCLC showing negative TTF-1 expression, those with tumors harboring TTF-1 overexpression had significantly better survival (HR = 0.49, 95% CI: 0.42-0.57, p < 0.00001). Subgroup analyses revealed that TTF-1 expression significantly correlated with a better prognosis in stage I (HR = 0.65, 95% CI: 0.50-0.84, p = 0.0008) as well as stage III-IV non-SQ NSCLC (HR = 0.38, 95% CI: 0.29-0.49, p < 0.00001). In conclusion, this meta-analysis demonstrates that TTF-1 overexpression is a favorable prognostic factor in patients with non-SQ NSCLC. The subgroup analyses indicate that TTF-1 is a good prognostic marker for survival not only in early-stage but also in advanced non-SQ NSCLC.
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Affiliation(s)
- Jung Han Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Hyeong Su Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Bum Jun Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea.,Department of Internal Medicine, National Army Capital Hospital, The Armed Forces Medical Command, Sungnam, Gyeonggi-Do, Republic of Korea
| | - Boram Han
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Dae Ro Choi
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jung Hye Kwon
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
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Treatment effectiveness and tolerability of afatinib at different doses in patients with EGFR-mutated lung adenocarcinoma: How low can we go? Eur J Cancer 2018; 103:32-40. [PMID: 30199768 DOI: 10.1016/j.ejca.2018.07.128] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/28/2018] [Accepted: 07/24/2018] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Afatinib is commonly used as the first-line treatment for EGFR-mutated lung adenocarcinoma. However, dose adjustments are frequently required. This study aimed to investigate the treatment effectiveness of afatinib administered at different doses to patients with EGFR-mutated lung adenocarcinoma. METHODS Treatment-naïve patients with advanced EGFR-mutated lung adenocarcinoma who received afatinib therapy between May 2014 and September 2016 were enrolled retrospectively. Collected clinical data included age, sex, smoking history, performance status, disease stages, EGFR mutation status, initial doses of afatinib, dose adjustments, treatment responses, progression-free survival and treatment-associated adverse events. The average daily dose was calculated by dividing the summation of all doses of prescribed tablets during the treatment period by the total days of afatinib use. The patients were classified into five treatment groups based on average daily doses: 40 mg, <40 and >30 mg, 30 mg, <30 and ≥ 20 mg and <20 mg. RESULTS A total of 254 patients were included. No significant differences were found among these five treatment groups with respect to response rates (69.3%, 68.3%, 70.5%, 77.8% and 66.7%, respectively, p = 0.920) and disease control rates (97.4%, 95.2%, 97.7%, 100% and 100%, respectively, p = 0.749). However, the treatment group with an average daily dose of <20 mg had a significant shorter progression-free survival as compared with the other groups (16.8, 12.4, 13.9, 17.0 and 5.3 months, respectively, p = 0.049). CONCLUSIONS Dose reduction may not affect the treatment effectiveness until the average daily dose is below 20 mg. Further prospective studies of afatinib therapy at different daily doses are warranted.
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Doherty MK, O'Connor E, Hannon D, O'Reilly A, Yen D, Redmond M, Grogan LM, Hennessy BT, Breathnach OS, Morris PG. Absence of thyroid transcription factor-1 expression is associated with poor survival in patients with advanced pulmonary adenocarcinoma treated with pemetrexed-based chemotherapy. Ir J Med Sci 2018; 188:69-74. [PMID: 29948461 DOI: 10.1007/s11845-018-1839-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 05/31/2018] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Adenocarcinoma is the commonest histologic subtype of lung cancer and is often identified by immunohistochemical staining for thyroid transcription factor-1 (TTF-1). However, up to 20% of lung adenocarcinomas do not express TTF-1, and there is uncertainty regarding the significance of this. We aimed to evaluate the prognostic effect of TTF-1 expression status on survival in patients treated with pemetrexed-based chemotherapy for advanced adenocarcinoma of the lung. METHODS This retrospective study included patients treated with pemetrexed-based chemotherapy for stage IIIB/IV lung adenocarcinoma, who had known TTF-1 expression status. Clinical and demographic data were obtained from medical records. Overall survival (OS) was estimated using the Kaplan-Meier method, and differences in survival between groups assessed using the Cox proportional hazards model. RESULTS Forty-four patients were identified with documented TTF-1 expression: 35 with TTF-1-positive and 9 with TTF-1-negative disease. Patients in the TTF-1-negative group had poorer performance scores than those in the TTF-1-positive group (ECOG 2: 67 vs 20%, p = 0.008), and received less chemotherapy (median cycles 2 vs 4, p = 0.009), and were fewer in treatment with doublet regimens (22 vs 69%, p = 0.013). OS was significantly shorter in the TTF-1-negative group than in the TTF-1-positive group (2.4 vs 11.5 months, HR 8.38, p < 0.0001). CONCLUSIONS In this group of patients treated with pemetrexed-based chemotherapy for advanced pulmonary adenocarcinoma, absence of TTF-1 expression was associated with an aggressive tumor phenotype, poorer performance status, and poor survival. This subgroup of patients should be recognized as having a distinct clinical course, with limited benefit from standard chemotherapy.
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Affiliation(s)
- Mark K Doherty
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - Emer O'Connor
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - David Hannon
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - Aine O'Reilly
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - Daphne Yen
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - Maeve Redmond
- Department of Pathology, Beaumont Hospital, Dublin, Ireland
| | - Liam M Grogan
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
- Department of Medical Oncology, Beaumont Hospital, Dublin, Ireland
| | - Bryan T Hennessy
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
- Royal College of Surgeons of Ireland, Dublin, Ireland
- Department of Medical Oncology, Beaumont Hospital, Dublin, Ireland
| | - Oscar S Breathnach
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
- Department of Medical Oncology, Beaumont Hospital, Dublin, Ireland
| | - Patrick G Morris
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland.
- Royal College of Surgeons of Ireland, Dublin, Ireland.
- Department of Medical Oncology, Beaumont Hospital, Dublin, Ireland.
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Zhou C, Zhao J, Shao J, Li W. Prognostic relevance of TTF-1 expression in stage I adenocarcinoma. Oncotarget 2017; 8:107462-107468. [PMID: 29296178 PMCID: PMC5746080 DOI: 10.18632/oncotarget.22489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 10/28/2017] [Indexed: 01/15/2023] Open
Abstract
Tyroid transcription factor-1 (TTF-1) motivates the differentiation and development of bronchioloalveolar cells. The association of TTF-1 expression with prognosis in stage I adenocarcinoma is unclear. This study enrolled patients with resected stage I pulmonary adenocarcinoma who had TTF-1 immunostaining. All the corresponding clinicopathologic data including sex, age, smoking history, pathologic T stage, pathologic disease stage, surgical procedure, subtypes, follow-up records and adjuvant chemotherapy were investigated. Totally, 126 adenocarcinomas with TTF-1− and 2687 adenocarcinomas with TTF-1+ were subjected to the study. Among adenocarcinomas with TTF-1−, the major subtype was acinar-predominant adenocarcinomas, followed by invasive mucinous and papillary subtypes while acinar, papillary and minimally invasive adenocarcinoma were in the majority among adenocarcinomas with TTF-1+. The status of TTF-1 expression was not a significant factor for relapse-free survival (RFS) and overall survival (OS). Furthermore, there was no survival difference between the two groups (RFS: p = 0.2474; OS: p = 0.1480). When confined to stage IB adenocarcinomas with TTF-1−, whether received adjuvant chemotherapy made no difference to RFS and OS (RFS: p = 0.2707; OS: p = 1.000), as was the case in stage IB adenocarcinomas with TTF-1+ (RFS: p = 0.9161; OS: p = 0.1100). Within follow-up period, there was significant difference in post-recurrence survival (PRS) for TTF-1− patients compared with those TTF-1+ patients (Log-rank p = 0.0113). However, regarding to the recurrence site, there was no difference between TTF-1− patients and TTF-1+ patients in patients with stage I adenocarcinoma (p = 0.771) In conclusion, there is no significant difference in RFS and OS between TTF-1− group and TTF-1+ group, but TTF-1 negative adenocarcinoma has significantly worse PFS in patients with stage I adenocarcinoma. Moreover, chemotherapeutic efficacy between TTF-1+ and TTF-1− stage IB adenocarcinomas did not differ.
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Affiliation(s)
- Chao Zhou
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jikai Zhao
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jinchen Shao
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Wentao Li
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
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Hsu LH, Chu NM, Kao SH. Estrogen, Estrogen Receptor and Lung Cancer. Int J Mol Sci 2017; 18:ijms18081713. [PMID: 28783064 PMCID: PMC5578103 DOI: 10.3390/ijms18081713] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 08/01/2017] [Accepted: 08/03/2017] [Indexed: 12/13/2022] Open
Abstract
Estrogen has been postulated as a contributor for lung cancer development and progression. We reviewed the current knowledge about the expression and prognostic implications of the estrogen receptors (ER) in lung cancer, the effect and signaling pathway of estrogen on lung cancer, the hormone replacement therapy and lung cancer risk and survival, the mechanistic relationship between the ER and the epidermal growth factor receptor (EGFR), and the relevant clinical trials combining the ER antagonist and the EGFR antagonist, to investigate the role of estrogen in lung cancer. Estrogen and its receptor have the potential to become a prognosticator and a therapeutic target in lung cancer. On the other hand, tobacco smoking aggravates the effect of estrogen and endocrine disruptive chemicals from the environment targeting ER may well contribute to the lung carcinogenesis. They have gradually become important issues in the course of preventive medicine.
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Affiliation(s)
- Li-Han Hsu
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan.
- Division of Pulmonary and Critical Care Medicine, Sun Yat-Sen Cancer Center, Taipei 112, Taiwan.
- Department of Medicine, National Yang-Ming University Medical School, Taipei 112, Taiwan.
| | - Nei-Min Chu
- Department of Medical Oncology, Sun Yat-Sen Cancer Center, Taipei 112, Taiwan.
| | - Shu-Huei Kao
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan.
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan.
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Phelps CA, Lai SC, Mu D. Roles of Thyroid Transcription Factor 1 in Lung Cancer Biology. VITAMINS AND HORMONES 2017; 106:517-544. [PMID: 29407447 DOI: 10.1016/bs.vh.2017.05.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Thyroid transcription factor 1 (TTF-1 or NKX2-1) is a transcription factor of fundamental importance in driving lung maturation and morphogenesis. In the last decade, scientists began to appreciate the functional roles of TTF-1 in lung tumorigenesis. This movement was triggered by the discoveries of genetic alterations of TTF-1 in the form of gene amplification in lung cancer. Many downstream target genes of TTF-1 relevant to the lung cancer biology of TTF-1 have been documented. One of the most surprising findings was that TTF-1 may exhibit either pro- or antitumorigenic activities, an outcome with the complexity exceeding the original anticipation purely based on the fact that TTF-1 undergoes gene amplification in lung cancer. In the coming decade, we believe, we will witness additional surprises as the research exploring the cancer roles of TTF-1 progresses.
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Affiliation(s)
- Cody A Phelps
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Shao-Chiang Lai
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, United States
| | - David Mu
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, United States.
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Hu H, Sun Z, Li Y, Zhang Y, Li H, Zhang Y, Pan Y, Shen L, Wang R, Sun Y, Chen H. The Histologic Classifications of Lung Adenocarcinomas Are Discriminable by Unique Lineage Backgrounds. J Thorac Oncol 2016; 11:2161-2172. [DOI: 10.1016/j.jtho.2016.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/09/2016] [Accepted: 07/12/2016] [Indexed: 02/07/2023]
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Negative Thyroid Transcription Factor 1 Expression Defines an Unfavorable Subgroup of Lung Adenocarcinomas. J Thorac Oncol 2016. [PMID: 26200450 DOI: 10.1097/jto.0000000000000626] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Thyroid transcription factor 1 (TTF1) is a master regulator of pulmonary differentiation that is downregulated in a subset of lung adenocarcinoma, of which the clinicopathologic characteristics were not fully clarified. METHODS One thousand forty-two lung adenocarcinoma patients who underwent surgery were investigated for clinic characteristics, histologic subtyping, and spectrum of well-identified driver mutations. TTF1 expression was correlated with these clinicopathologic factors and survival. RESULTS Compared with TTF1 positive (TTF1+) patients, the 133 negative individuals (12.8%, TTF1-) were more likely to be male (p = 0.006) and heavy smokers (p = 0.002) who had larger tumor size (p < 0.001) and more advanced disease stage (p < 0.001). TTF1- presented more in solid and invasive mucinous-predominant carcinomas (both p < 0.001), whereas TTF1+ was identified in 100% patients with adenocarcinoma in situ, minimally invasive and lepidic-predominant adenocarcinomas. The TTF1- tumors harbored the known driver mutations in significantly low frequency compared with TTF1+ adenocarcinomas (57.8% versus 78.1%, p < 0.001), especially in epidermal growth factor receptor (EGFR) mutations (37.6% versus 60.7%, p < 0.001). There was no significant difference in recurrence-free survival between the TTF1- and TTF1+ patients, either for the whole cohort or stratified by pathologic stage, or among the driver mutation-defined subsets. However, recurrence of multiple metastases was more likely to occur in patients with TTF1- adenocarcinomas (88.1% versus 32.4%, p < 0.001). Multivariate analysis revealed that TTF1- independently predicted both poor postrecurrence survival (hazard ratio = 1.664; 95% confidence interval , 1.097-2.524; p = 0.017) and unfavorable overall survival (hazard ratio = 1.553; 95% confidence interval , 1.013-2.381; p = 0.043). CONCLUSIONS TTF1- correlated with solid and invasive mucinous subtypes of lung adenocarcinoma and lower frequency of EGFR mutations. It defines a subgroup of lung adenocarcinomas with unfavorable outcomes.
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Walsh K, Kheng YC, Oniscu A, Harrison DJ, Wallace WA. Could molecular pathology testing in lung cancer be more cost-effective? J Clin Pathol 2016; 69:938-41. [PMID: 27387984 DOI: 10.1136/jclinpath-2016-203811] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/10/2016] [Indexed: 12/28/2022]
Abstract
AIMS EGFR and ALK analysis is routinely undertaken prior to targeted treatment of non-squamous non-small cell lung carcinoma (NSCLC). Increasingly, limited resources require molecular pathology services to be cost-effective without detriment to patient care. METHODS Data from an audit of molecular pathology testing in the South East Scotland Cancer Network (SCAN) network have been used to explore different testing strategies with the aim of reducing costs; including investigation of thyroid transcription factor 1 (TTF1) expression as a negative predictor for EGFR mutations. RESULTS TTF1 immunohistochemistry had a high negative predictive value for EGFR mutations (99%). Reflex testing all non-squamous NSCLC, as expected, had the highest costs, whereas limiting testing to those who might be considered for treatment would lead to a cost reduction of only 7.5%; however, a serial testing model could save 32.7%. CONCLUSIONS Testing only patients being considered for EGFR and ALK inhibitors represented small savings; more significant savings would be achievable if testing algorithms used known associations between clinical biomarkers.
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Affiliation(s)
- Kathy Walsh
- Department of Molecular Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Yuan Chun Kheng
- Department of Molecular Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Anca Oniscu
- Department of Molecular Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - David J Harrison
- Department of Molecular Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK School of Medicine, University of St Andrews, St Andrews, UK
| | - William A Wallace
- Department of Molecular Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
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Elsamany SA, Al-Fayea TM, Alzahrani AS, Abozeed WN, Darwish W, Farooq MU, Almadani AS, Bukhari EA. Thyroid transcription factor-1 expression in advanced non- small cell lung cancer: impact on survival outcome. Asian Pac J Cancer Prev 2015; 16:2987-91. [PMID: 25854394 DOI: 10.7314/apjcp.2015.16.7.2987] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The prognostic role of thyroid transcription factor-1 (TTF-1) expression in lung cancer has been assessed but with inconsistent results. The present study aimed to evaluate the prognostic value of TTF1 expression in advanced non-squamous non-small cell lung cancer (NSCLC). MATERIALS AND METHODS In this retrospective study, patients with stage IIIB-IV non-squamous NSCLC were enrolled. Progression free survival (PFS) and overall survival (OS) were assessed according to TTF1 expression status, age categories (≤60 vs >60 years), gender, performance status (PS) (0-2 vs 3-4), type of 1st line chemotherapy (pemetrexed containing vs others) and EGFR status. RESULTS A total of 120 patients were included. In univariate analysis, PFS was improved in patients with PS 0-2 (7.0 vs 2.0 months, p=0.002) and those who received pemetrexed-containing chemotherapy (9.2 vs 5.8 months, p=0.004). OS was improved in female patients (23.0 vs 8.7 months, p<0.0001), PS 0-2 (14.4 vs 2.0 months, p<0.0001), those with pemetrexed-containing chemotherapy (17.0 vs 11.0 months, p=0.019), TTF1-positive (12.8 vs 5.8 months, p=0.011) and EGFR- mutant patients (23.0 vs 11.7 months, p=0.006). In multivariate analysis, male gender (HR=2.34, p=0.025) and non-pemetrexed containing therapy (HR=2.24, p=0.022) were independent predictors of worse PFS. Wild EGFR status (HR=2.49, p=0.015) and male gender (HR=2.78, p=0.008) were predictors of worse OS. CONCLUSIONS Pemetrexed-containing therapy significantly improved PFS while OS was improved in EGFR mutant patients. Female patients had better PFS and OS. TTF1 expression was not a prognostic marker in advanced non-squamous NSCLC.
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Affiliation(s)
- Shereef Ahmed Elsamany
- Department of Medical Oncology, Oncology Centre, King Abdullah Medical City, Makkah, Saudi Arabia E-mail :
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Wu KL, Tsai MJ, Yang CJ, Chang WA, Hung JY, Yen CJ, Shen CH, Kuo TY, Lee JY, Chou SH, Liu TC, Chong IW, Huang MS. Liver metastasis predicts poorer prognosis in stage IV lung adenocarcinoma patients receiving first-line gefitinib. Lung Cancer 2015; 88:187-94. [PMID: 25747806 DOI: 10.1016/j.lungcan.2015.02.012] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 02/01/2015] [Accepted: 02/13/2015] [Indexed: 01/13/2023]
Abstract
OBJECTIVES Gefitinib is currently used as a first-line therapy in patients of advanced non-small cell lung cancer (NSCLC) with susceptible epidermal growth factor receptor (EGFR) mutations. However, treatment outcomes of these patients vary. This study was conducted to evaluate the impact of specific metastatic sites on treatment outcomes of patients with stage IV lung adenocarcinoma with susceptible EGFR mutations receiving first-line gefitinib, focusing on the impact of liver metastasis. MATERIALS AND METHODS Between October 2009 and April 2014, patients of stage IV lung adenocarcinoma harboring EGFR mutation in exon 19 or 21, who received first-line gefitinib treatment, were enrolled in two hospitals and followed until December 22, 2014. The impacts of various clinical features, including sex, age, smoking history, performance status, EGFR mutation site, metastatic sites, etc., on progression-free survival (PFS) and overall survival (OS) were analyzed. RESULTS A total of 148 patients were eligible for analysis. Patients with liver metastasis on initial diagnosis (n=19) had shorter PFS and OS than those without liver metastasis did (median of PFS, 6.7 vs. 11.2 months, p<0.0001; median of OS, 9.2 vs. 17.5 months, p<0.0001). Multivariable Cox regression analysis showed liver metastasis was an independent poor prognostic factor for PFS (HR=2.939 [95% CI: 1.729-4.997], p<0.0001) and OS (HR=3.300 [95% CI: 1.708-6.373], p=0.0004). CONCLUSION Liver metastasis predicts poorer PFS and OS in stage IV lung adenocarcinoma patients with susceptible gene mutations receiving first-line gefitinib. Further study is warranted to elucidate the underlying mechanisms and find treatment modalities to improve prognosis of these patients.
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Affiliation(s)
- Kuan-Li Wu
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Department of Internal Medicine, Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan
| | - Ming-Ju Tsai
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Jen Yang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-An Chang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jen-Yu Hung
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Ju Yen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Hsiang Shen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzu-Yu Kuo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan
| | - Jui-Ying Lee
- Division of Chest Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shah-Hwa Chou
- Division of Chest Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Respiratory Care, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ta-Chih Liu
- Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Inn-Wen Chong
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Department of Respiratory Care, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Shyan Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, No. 100, Tz-You 1st Road, 807 Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Qian HH, Xu TS, Cai XQ, Ji TL, Guo HX. Prognostic value of TTF-1 expression in patients with non-small cell lung cancer: A meta-analysis. Clin Chim Acta 2015; 451:208-14. [PMID: 25661085 DOI: 10.1016/j.cca.2015.01.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 01/25/2015] [Accepted: 01/26/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Observational studies on the prognostic role of thyroid transcription factor 1 (TTF-1) in non-small-cell lung cancer (NSCLC) are controversial. METHODS To clarify the impact of TTF-1 in NSCLC survival, we performed this meta-analysis that included eligible studies. The combined hazard ratios and their corresponding 95% confidence intervals were calculated in terms of overall survival. RESULTS A total of 17 studies with 2235 patients were evaluable for this meta-analysis. The studies were categorized by histology, disease stage and patient race. Our results suggested that TTF-1 overexpression had a favorable impact on survival of patients with NSCLC, the HR (95% CI) was 0.49 (0.42 to 0.55) overall, 0.46 (0.38-0.54) in Asian patients, 0.52 (0.42-0.63) in non-Asian patients, 0.45 (0.38-0.52) in adenocarcinoma, 0.63 (0.39-0.86) in stage I NSCLC, and 0.43 (0.33-0.53) in stage IIIb-IV NSCLC. The data collected were not sufficient to determine the prognostic value of VEGF in patients with squamous cell lung carcinomas. But there was a high heterogeneity between the studies. CONCLUSION TTF-1 overexpression indicates a favorable prognosis for patients with NSCLC, this effect appears also significant when the analysis is restricted in lung AC patients, stage I and stage IIIb-IV NSCLC.
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Affiliation(s)
- Hai-hua Qian
- Anorectal Branch, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Tian-shu Xu
- Department of Traditional Chinese Medicine, Drum Tower Hospital, Medical School of Nanjing University, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China.
| | - Xiao-qin Cai
- Anorectal Branch, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Tian-li Ji
- Anorectal Branch, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Hai-xia Guo
- Anorectal Branch, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, PR China
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Potential therapeutic benefit of combining gefitinib and tamoxifen for treating advanced lung adenocarcinoma. BIOMED RESEARCH INTERNATIONAL 2015; 2015:642041. [PMID: 25692143 PMCID: PMC4321093 DOI: 10.1155/2015/642041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 12/25/2014] [Accepted: 12/25/2014] [Indexed: 12/15/2022]
Abstract
Introduction. Epidermal growth factor receptor (EGFR) mutations are known as oncogene driver mutations and with EGFR mutations exhibit good response to the EGFR tyrosine kinase inhibitor Gefitinib. Some studies have shown that activation of estrogen and estrogen receptor α or β (ERα/β) promote adenocarcinoma. We evaluated the relationship between the two receptors and the potential therapeutic benefit with Gefitinib and Tamoxifen. Methods. We assessed the association between EGFR mutations as well as ERα/β expression/location and overall survival in a cohort of 55 patients with LAC from a single hospital. PC9 (EGFR exon 19 deletion mutant; Gefitinib-vulnerable cells) and A549 (EGFR wild type; Gefitinib-resistant cells) cancer cells were used to evaluate the in vitro therapeutic benefits of combining Gefitinib and Tamoxifen. Results. We found that the cytosolic but not the nuclear expression of ERβ was associated with better OS in LAC tumors but not associated with EGFR mutation. The in vitro study showed that combined Gefitinib and Tamoxifen resulted in increased apoptosis and cytosolic expression of ERβ. In addition, combining both medications resulted in reduced cell growth and increased the cytotoxic effect of Gefitinib. Conclusion. Tamoxifen enhanced advanced LAC cytotoxic effect induced by Gefitinib by arresting ERβ in cytosol.
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Associations between TS, TTF-1, FR-α, FPGS, and overall survival in patients with advanced non-small-cell lung cancer receiving pemetrexed plus carboplatin or gemcitabine plus carboplatin as first-line chemotherapy. J Thorac Oncol 2014; 8:1255-64. [PMID: 24457236 DOI: 10.1097/jto.0b013e3182a406a3] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Pemetrexed is effective in the treatment of non-small-cell lung cancer, mainly in nonsquamous cell carcinomas. Inhibition of thymidylate synthase (TS) is considered the key mechanism of action. Folate receptor-α facilitates uptake of pemetrexed. Polyglutamation by folylpolyglutamate synthetase enhances activity and prolongs cellular retention of pemetrexed. Thyroid transcription factor-1 (TTF-1) is mainly positive in nonsquamous cell carcinoma and has been proposed as a marker for sensitivity to pemetrexed. The aim was to investigate associations between these biomarkers and survival in patients who participated in a phase III trial comparing pemetrexed plus carboplatin with gemcitabine plus carboplatin as first-line chemotherapy in advanced non-small-cell lung cancer (n = 436). In this study, there was no difference in overall survival between the two regimens. METHODS Formalin-fixed, paraffin-embedded biopsies were collected. Percentages of tumor cells positive and highly positive for the biomarkers were assessed using immunohistochemistry (IHC) and an IHC score was calculated (range, 0-200). RESULTS Two hundred thirty-six biopsies were analyzed (pemetrexed plus carboplatin: n = 114, gemcitabine plus carboplatin: n = 122). There was a significant difference in overall survival between those with TTF-1-positive and -negative tumors (10.4 versus 6.0 months; p < 0.001) and those with a low and a high TS IHC score (9.7 versus 6.2 months; p < 0.001). Folate receptor-α and folylpolyglutamate synthetase were not significant prognostic factors. In multivariate analyses adjusting for established prognostic characteristics, TS (p = 0.002) and TTF-1 (p = 0.003) remained significant. There were no differences in survival between the treatment arms depending on biomarker scores. CONCLUSIONS TTF-1 positivity and low TS level were associated with prolonged survival. The associations between the biomarkers and overall survival were similar for both chemotherapy regimens.
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Keam B, Kim DW, Park JH, Lee JO, Kim TM, Lee SH, Chung DH, Heo DS. Nomogram Predicting Clinical Outcomes in Non-small Cell Lung Cancer Patients Treated with Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors. Cancer Res Treat 2014; 46:323-30. [PMID: 25036571 PMCID: PMC4206063 DOI: 10.4143/crt.2013.120] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 10/01/2013] [Indexed: 01/21/2023] Open
Abstract
Purpose The aim of this study was to develop a pragmatic nomogram for prediction of progressionfree survival (PFS) for the epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) in EGFR mutant non-small cell lung cancer (NSCLC). Materials and Methods A total of 306 recurred or metastatic NSCLC patients with EGFR mutation, who received EGFR TKIs, were enrolled in this study. We developed the nomogram, using a Cox proportional hazard regression model for PFS. Results The median PFS was 11.2 months. Response rate to EGFR TKI was 71.9%. Multivariate Cox model identified disease status, performance status, chemotherapy line, response to EGFR TKI, and bone metastasis as independent prognostic factors, and the nomogram for PFS was developed, based on these covariates. The concordance index for a nomogram was 0.708, and the calibration was also good. Conclusion We developed a nomogram, based on clinical characteristics, for prediction of the PFS to EGFR TKI in NSCLC patients with EGFR mutation.
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Affiliation(s)
- Bhumsuk Keam
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Dong-Wan Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Hyun Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jeong-Ok Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Tae Min Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Se-Hoon Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Doo Hyun Chung
- Department of Pathology, Seoul National University Hospital, Seoul, Korea
| | - Dae Seog Heo
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Sample Features Associated with Success Rates in Population-Based EGFR Mutation Testing. J Thorac Oncol 2014; 9:947-956. [DOI: 10.1097/jto.0000000000000196] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Lin MW, Wu CT, Shih JY, Chang YL, Yang PC. Clinicopathologic characteristics and prognostic significance of EGFR
and p53
mutations in surgically resected lung adenocarcinomas ≤2 cm in maximal dimension. J Surg Oncol 2014; 110:99-106. [DOI: 10.1002/jso.23628] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 02/27/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Mong-Wei Lin
- Department of Surgery; National Taiwan University Hospital Hsin-Chu Branch; Hsinchu City Taiwan
- Graduate Institute of Pathology; College of Medicine; National Taiwan University; Taipei Taiwan
| | - Chen-Tu Wu
- Graduate Institute of Pathology; College of Medicine; National Taiwan University; Taipei Taiwan
- Department of Pathology; National Taiwan University Hospital and National Taiwan University College of Medicine; Taipei Taiwan
| | - Jin-Yuan Shih
- Department of Internal Medicine; National Taiwan University Hospital and National Taiwan University College of Medicine; Taipei Taiwan
| | - Yih-Leong Chang
- Graduate Institute of Pathology; College of Medicine; National Taiwan University; Taipei Taiwan
- Department of Pathology; National Taiwan University Hospital and National Taiwan University College of Medicine; Taipei Taiwan
| | - Pan-Chyr Yang
- Graduate Institute of Pathology; College of Medicine; National Taiwan University; Taipei Taiwan
- Department of Internal Medicine; National Taiwan University Hospital and National Taiwan University College of Medicine; Taipei Taiwan
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Pilotto S, Peretti U, Novello S, Rossi G, Milella M, Giaj Levra M, Ciuffreda L, Massari F, Brunelli M, Tortora G, Bria E. PROFILing non-small-cell lung cancer patients for treatment with crizotinib according to anaplastic lymphoma kinase abnormalities: translating science into medicine. Expert Opin Pharmacother 2013; 14:597-608. [PMID: 23472711 DOI: 10.1517/14656566.2013.778828] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION In the recent years, the growing attention to the molecular background of non-small-cell lung cancer (NSCLC) led to the identification of different molecular subtypes according to genetic abnormalities driving the disease development and progression. Whereas the addicted pathways were successfully inhibited (such as the mutant epidermal growth factor receptor), clinicians have witnessed a dramatic survival improvement. In this regard, the molecular portrait of adenocarcinoma was recently enriched by the identification of a specific patients' subgroup characterized by abnormalities in the anaplastic lymphoma kinase (ALK), with unclear prognostic features but impressive response to specific inhibitors. AREAS COVERED In this article, updated data derived from the development and the use of crizotinib (the most advanced in development among tyrosine kinase ALK inhibitors) in comparison with standard second-line chemotherapy for patients affected by ALK-altered NSCLC are reviewed. EXPERT OPINION Taking into account the available data, pretreated NSCLC patients carrying the ALK-translocation require a selected targeted therapy which significantly improves activity, efficacy and symptoms control versus chemotherapy. In this context, the identification of this disease entity and the availability of such impressive therapeutic targeting represent a further step toward the understanding of the molecular complexity behind the adenocarcinoma of the lung.
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Affiliation(s)
- Sara Pilotto
- University of Verona, Azienda Ospedaliera Universitaria Integrata, G.B. Rossi Academic Hospital, Medical Oncology, P.zza L.A. Scuro 10, 37124, Verona, Italy
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Negative NKX2-1 (TTF-1) as temporary surrogate marker for treatment selection during EGFR-mutation analysis in patients with non-small-cell lung cancer. J Thorac Oncol 2013; 7:1522-7. [PMID: 22982653 DOI: 10.1097/jto.0b013e3182635a91] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION In the past decade, major progress has been made toward personalized medical treatment of non-small-cell lung cancer (NSCLC) through the discovery of epithelial growth factor receptor (EGFR) mutations. However, mutation analysis takes extra time and additional costs in the diagnostic evaluation of lung cancer patients. It has been hypothesized that EGFR mutations are restricted to terminal respiratory unit -type adenocarcinoma expressing thyroid transcription factor-1 (official symbol NKX2-1) as determined by immunohistochemistry. The aim of the current study is to evaluate the potential of NKX2-1 immunohistochemistry as a prescreening test for EGFR mutation analysis. METHODS From 2004 to December 2010, 810 consecutive NSCLC tumor specimens were tested for EGFR mutations in a routine diagnostic procedure. Immunohistochemistry for NKX2-1 was performed (clone 8G7G3/1 [Dako]) and the results were compared with tumor EGFR-mutation status and clinicopathological characteristics. RESULTS EGFR mutations were detected in 114 specimens (14%). NKX2-1 expression was present in 68%. In the cases with EGFR mutation, NKX2-1 staining was positive in 92%. NKX2-1 immunohistochemical (IHC) staining was significantly associated with the presence of EGFR mutations (p = 5.3×10). NKX2-1 increased the negative predictive value in NSCLC to more than 95%. CONCLUSIONS In case of a negative NKX2-1 IHC staining, and only if clinically urgent, the high negative predictive value of more than 95% for EGFR mutations is a suitable temporary surrogate marker for the choice of starting with chemotherapy. In case of positive NKX2-1 IHC, the best strategy is to wait for the outcome of EGFR-mutation analysis and then choose the appropriate treatment.
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Kadota K, Nitadori JI, Sarkaria IS, Sima CS, Jia X, Yoshizawa A, Rusch VW, Travis WD, Adusumilli PS. Thyroid transcription factor-1 expression is an independent predictor of recurrence and correlates with the IASLC/ATS/ERS histologic classification in patients with stage I lung adenocarcinoma. Cancer 2012; 119:931-8. [PMID: 23096929 DOI: 10.1002/cncr.27863] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 09/17/2012] [Accepted: 09/19/2012] [Indexed: 01/15/2023]
Abstract
BACKGROUND In the current study, the authors investigated whether thyroid transcription factor-1 (TTF-1) expression is correlated with the International Association for the Study of Lung Cancer (IASLC)/American Thoracic Society (ATS)/European Respiratory Society (ERS) classification and whether it stratifies patients with stage I lung adenocarcinoma with respect to disease recurrence. METHODS Patients with stage I lung adenocarcinoma were classified according to the IASLC/ATS/ERS classification. Tissue microarrays were constructed and immunostaining for TTF-1 was performed. A total of 452 cases were available for analysis. Tumors were dichotomized based on the intensity of nuclear TTF-1 expression as negative (score of 0) or positive (score of 1-3). The cumulative incidence of recurrence (CIR) was used to estimate disease recurrence probabilities. RESULTS TTF-1 expression was identified in 92% of patients, including 100% of patients with minimally invasive or lepidic-predominant adenocarcinoma, 94% of patients with acinar-predominant adenocarcinoma, 98% of patients with papillary-predominant adenocarcinoma, 93% of patients with micropapillary-predominant adenocarcinoma, 86% of patients with solid-predominant adenocarcinoma, 67% of patients with colloid-predominant adenocarcinoma, and 47% of patients with invasive mucinous carcinoma. The CIR for patients with negative TTF-1 expression (n = 34 patients; 5-year CIR, 40%) was significantly higher than that for patients with positive TTF-1 expression (n = 418 patients; 5-year CIR, 15%) (P < .001). Among the patients with intermediate-grade tumors, the CIR for patients with negative TTF-1 expression (n = 16 patients; 5-year CIR, 45%) was significantly higher than that for patients with positive TTF-1 expression (n = 313 patients; 5-year CIR, 14%) (P < .001). On multivariate analysis, negative TTF-1 expression was found to be significantly correlated with an increased risk of disease recurrence (hazards ratio, 2.55; P = .009). CONCLUSIONS TTF-1 expression was found to be an independent predictor of disease recurrence, stratifying intermediate-grade tumors into 2 prognostic subsets, and it correlates with the IASLC/ATS/ERS classification.
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Affiliation(s)
- Kyuichi Kadota
- Division of Thoracic Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
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