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Yang R, Jia L, Cui J. Mechanism and clinical progression of solid tumors bone marrow metastasis. Front Pharmacol 2024; 15:1390361. [PMID: 38770000 PMCID: PMC11102981 DOI: 10.3389/fphar.2024.1390361] [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: 02/23/2024] [Accepted: 04/22/2024] [Indexed: 05/22/2024] Open
Abstract
The rich blood supply of the bone marrow provides favorable conditions for tumor cell proliferation and growth. In the disease's early stages, circulating tumor cells can escape to the bone marrow and form imperceptible micro metastases. These tumor cells may be reactivated to regain the ability to grow aggressively and eventually develop into visible metastases. Symptomatic bone marrow metastases with abnormal hematopoiesis solid tumor metastases are rare and have poor prognoses. Treatment options are carefully chosen because of the suppression of bone marrow function. In this review, we summarized the mechanisms involved in developing bone marrow metastases from tumor cells and the clinical features, treatment options, and prognosis of patients with symptomatic bone marrow metastases from different solid tumors reported in the literature.
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Zhang L, Chen F, Xu L, Li N, Zhuo Q, Guo Y, Wang X, Wen M, Zhao Z, Li M. Comprehensive review of solid tumor bone marrow metastasis. Crit Rev Oncol Hematol 2024; 194:104248. [PMID: 38145832 DOI: 10.1016/j.critrevonc.2023.104248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 12/03/2023] [Accepted: 12/20/2023] [Indexed: 12/27/2023] Open
Abstract
Bone marrow metastasis (BMM) of solid tumors refers to a group of diseases that originate from non-hematopoietic malignant tumor cells invading the bone marrow (BM) through complex metastatic patterns. If BMM identification is delayed, the disease will rapidly develop into disseminated carcinogenesis of the BM, which manifests as a series of hematological disorders and microangiopathic hemolytic anemia, leading to serious life-threatening conditions. Although the study of solid tumor BMM is receiving increasing attention, study remains limited, and most descriptions are derived from case reports. Currently, clinicians have insufficient understanding of BMM, and BMM occurrence is often not recognized early or treated effectively, resulting in high mortality rates. In this article, we review the epidemiology, molecular mechanisms, clinical diagnosis, treatment, and prognosis of solid tumor BMM.
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Affiliation(s)
- Lanxin Zhang
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Fengxi Chen
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Lingzhi Xu
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Ning Li
- Dalian Medical University, Dalian, Liaoning, China
| | - Qiping Zhuo
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yijin Guo
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xueqing Wang
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Meijie Wen
- Department of Anesthesia & Operating Theater, China-Japan Friendship Hospital, Beijing, China
| | - Zuowei Zhao
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China; Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China.
| | - Man Li
- Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China.
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Jiang F, Lai J, Zhuo X, Liu L, Yang Y, Zhang J, Zhao J, Xu W, Wang J, Wang C, Fu G. HER2-positive breast cancer progresses rapidly after pyrotinib resistance: acquired RET gene fusion and TP53 gene mutation are potential reasons. Anticancer Drugs 2023; 34:1196-1201. [PMID: 36689646 DOI: 10.1097/cad.0000000000001506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Approximately 15-20% of the patients with breast cancer overexpress human epidermal growth factor receptor 2 ( HER2 ). HER2 -positive breast cancer is highly aggressive and has a high relapse rate, suggesting that it is prone to and progresses rapidly after drug resistance. Pyrotinib resistance and changes in patients' conditions after drug resistance are challenging clinical issues and require medical attention. Recently, there are few clinical reports on changes in patients' conditions after pyrotinib resistance. We report a case of a 46-year-old patient with HER2 -positive breast cancer who developed resistance to pyrotinib and rapidly progressed to uncontrolled liver failure in less than a week. To elucidate the cause of the rapid progression, we collected samples of the patient's ascites and performed next-generation sequencing (NGS). On the basis of the NGS results, we speculated that the rapid progression after pyrotinib resistance might be due to RET gene fusion and TP53 gene mutations. Therefore, this case report aims to alert oncologists that patients with HER2 -positive breast cancer, who are resistant to pyrotinib or other targeted drugs, could experience rapid or even flare-up progression and that RET gene fusion and TP53 gene mutations might be potential causes.
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Affiliation(s)
- Fengxian Jiang
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- The Second Clinical Medical College, Shandong University of Traditional Chinese Medicine
| | - Jingjiang Lai
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- The Second Clinical Medical College, Shandong University of Traditional Chinese Medicine
| | - Xiaoli Zhuo
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- The Clinical Medical College, Shandong First Medical University (Shandong Academy of Medicine)
| | - Lei Liu
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- The Clinical Medical College, Shandong First Medical University (Shandong Academy of Medicine)
| | - Yucheng Yang
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
| | | | - Jing Zhao
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- The Clinical Medical College, Shandong First Medical University (Shandong Academy of Medicine)
| | - Wei Xu
- Department of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, People's Republic of China
| | - Jingliang Wang
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- The Second Clinical Medical College, Shandong University of Traditional Chinese Medicine
| | - Cuiyan Wang
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
| | - Guobin Fu
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
- Department of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, People's Republic of China
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Pevner JL, Tanvetyanon T. Targeted therapy for lung cancer with paraneoplastic disseminated intravascular coagulation: A case report and pooled analysis. Clin Lung Cancer 2022; 23:e540-e544. [PMID: 36253272 DOI: 10.1016/j.cllc.2022.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/07/2022] [Accepted: 09/18/2022] [Indexed: 01/27/2023]
Affiliation(s)
- Justin L Pevner
- University of South Florida, Morsani College of Medicine, Tampa, FL
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5
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Efficacy Evaluation of Zoledronic Acid Combined with Chemotherapy in the Treatment of Lung Cancer Spinal Metastases on Computed Tomography Images on Intelligent Algorithms. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6431852. [PMID: 35572820 PMCID: PMC9106519 DOI: 10.1155/2022/6431852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 11/23/2022]
Abstract
To analyze the effectiveness and safety of zoledronic acid combined with chemotherapy for lung cancer spinal metastases, 96 patients with lung cancer spinal metastases were averagely classified into the experimental group (gemcitabine, cisplatin, and zoledronic acid) and the control group (gemcitabine and cisplatin). An optimized noise variance estimation algorithm (OMAPB) was proposed based on the maximum a posteriori Bayesian method (MAPB), and the algorithm was applied to the patient's computed tomography (CT) scan. The results indicated that in terms of curative effect, the number of complete remission (CR), partial remission (PR) cases, effective rate, and clinical benefit rate of the test group was significantly higher than those of the control group. The number of progress disease (PD) cases was significantly lower than that of the control group (P < 0.05). The disease progression time of the test group patients was 6.2 months, and the disease progression time of the control group patients was 3.7 months (P < 0.05). The test group patients had 8 cases of bone marrow suppression and gastrointestinal reactions after treatment. In the test group, there were 8 cases of bone marrow suppression, 9 cases of gastrointestinal reaction, 3 cases of fever, 4 cases of pain, and 2 cases of hair loss. The patients in the control group were complicated with bone marrow suppression in 14 cases, gastrointestinal reaction in 17 cases, fever in 5 cases, pain in 4 cases, and hair loss in 6 cases. The difference was statistically significant (P < 0.05). It showed that zoledronic acid combined with chemotherapy could effectively improve the treatment efficiency and clinical benefit rate of patients with lung cancer spinal metastases, prolong the progression of the disease, reduce the degree of bone tissue damage, and would not increase chemotherapy adverse events.
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Wang N, Li L, Xiong Y, Chi J, Liu X, Zhong C, Wang F, Gu Y. Case Report: Significant Efficacy of Pyrotinib in the Treatment of Extensive Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer Cutaneous Metastases: A Report of Five Cases. Front Oncol 2022; 11:729212. [PMID: 34976791 PMCID: PMC8716402 DOI: 10.3389/fonc.2021.729212] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 11/23/2021] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Breast cancer (BC) is the most common tumor to develop cutaneous metastases. Most BCs with cutaneous metastasis are human epidermal growth factor receptor 2 (HER2)-positive subtypes. Although the molecular mechanisms of breast cancer metastasis to different sites and the corresponding treatment methods are areas of in-depth research, there are few studies on cutaneous metastasis. CASE PRESENTATION Five HER2-positive BC patients with extensive cutaneous metastases were treated with a regimen containing pyrotinib, a novel small-molecule tyrosine kinase inhibitor that irreversibly blocks epidermal growth factor receptor (EGFR), HER2, and human epidermal growth factor receptor 4 (HER4), then their cutaneous metastases quickly resolved at an astonishing speed and their condition was well controlled during the follow-up period. CONCLUSIONS This case series reports the significant therapeutic effect of pyrotinib on cutaneous metastases of HER2-positive BC for the first time. Based on this, we recommend that pyrotinib can be used as a supplement to trastuzumab for HER2-positive BC patients with cutaneous metastases. In addition, we should consider that the pan-inhibitory effect of pyrotinib on EGFR, HER2, and HER4 may provide a dual therapeutic effect against HER2 and mucin 1.
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Affiliation(s)
- Nan Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lin Li
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Youyi Xiong
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiangrui Chi
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinwei Liu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chaochao Zhong
- Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuanting Gu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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7
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She K, Yang W, Li M, Xiong W, Zhou M. FAIM2 Promotes Non-Small Cell Lung Cancer Cell Growth and Bone Metastasis by Activating the Wnt/β-Catenin Pathway. Front Oncol 2021; 11:690142. [PMID: 34568020 PMCID: PMC8459617 DOI: 10.3389/fonc.2021.690142] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022] Open
Abstract
Aim Bone metastasis is the major reason for the poor prognosis and high mortality rate of non-small cell lung cancer (NSCLC) patients. This study explored the function and underlying mechanism of Fas apoptotic inhibitory molecule 2 (FAIM2) in the bone metastasis of NSCLC. Methods Samples of normal lung tissue and NSCLC tissue (with or without bone metastasis) were collected and analyzed for FAIM2 expression. HARA cells with FAIM2 overexpression and HARA-B4 cells with FAIM2 knockdown were tested for proliferation, migration, invasion, anoikis, and their ability to adhere to osteoblasts. Next, whether FAIM2 facilitates bone metastasis by regulating the epithelial mesenchymal transformation (EMT) process and Wnt/β-catenin signaling pathway were investigated. Finally, an in vivo model of NSCLC bone metastasis was established and used to further examine the influence of FAIM2 on bone metastasis. Results FAIM2 was highly expressed in NSCLC tissues and NSCLC tissues with bone metastasis. FAIM2 expression was positively associated with the tumor stage, lymph node metastasis, bone metastasis, and poor prognosis of NSCLC. FAIM2 upregulation promoted HARA cell proliferation, migration, and invasion, but inhibited cell apoptosis. FAIM2 knockdown in HARA-B4 cells produced the opposite effects. HARA-B4 cells showed a stronger adhesive ability to osteocytes than did HARA cells. FAIM2 was found to be related to the adhesive ability of HARA and HARA-B4 cells to osteocytes. FAIM2 facilitated bone metastasis by regulating the EMT process and Wnt/β-catenin signaling pathway. Finally, FAIM2 was found to participate in regulating NSCLC bone metastasis in vivo. Conclusions FAIM2 promoted NSCLC cell growth and bone metastasis by regulating the EMT process and Wnt/β-catenin signaling pathway. FAIM2 might be useful for diagnosing and treating NSCLC bone metastases.
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Affiliation(s)
- Kelin She
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Central South University, Changsha, China.,Department of Thoracic Surgery, The Affiliated Shaoyang Hospital, Hengyang Medical School, University of South China, Shaoyang, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Wensheng Yang
- Department of Thoracic Surgery, The Affiliated Shaoyang Hospital, Hengyang Medical School, University of South China, Shaoyang, China
| | - Mengna Li
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Wei Xiong
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Ming Zhou
- National Health Commission (NHC) Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
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8
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Liu Y, Zhang Q, Lu C, Hu W. Multiple Administrations of Itraconazole Increase Plasma Exposure to Pyrotinib in Chinese Healthy Adults. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:2485-2493. [PMID: 34140765 PMCID: PMC8203185 DOI: 10.2147/dddt.s312310] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/26/2021] [Indexed: 01/25/2023]
Abstract
Purpose Pyrotinib, an irreversible human epidermal growth factor receptor 2 (HER2), is a epidermal growth factor receptor double-target tyrosine kinase inhibitor used for treating HER2-positive breast cancer. This study aimed to evaluate the impact of the strong CYP3A4 inhibitor itraconazole on the safety and pharmacokinetics of pyrotinib in Chinese healthy adults. Patients and Methods This was an open-label, randomized, self-control study. Eighteen healthy adults were included in this trial. They received a single 80 mg dose of pyrotinib orally on days 1 and 9, and a 200 mg once-daily dose of itraconazole on days 6 through 22. Blood samples were obtained, and the drug concentration was detected using liquid chromatography/tandem mass spectrometry. Results Compared with pyrotinib alone, the exposure to pyrotinib co-administered with itraconazole substantially increased, and the Cmax and AUC0-t increased by 2.78- and 10.8-fold, respectively. No serious adverse events were reported in this trial, and no participant dropped out of the trial because of adverse events. Conclusion The exposure to pyrotinib was substantially affected by the action of itraconazole. The concomitant use of pyrotinib with itraconazole might require dose modification of pyrotinib. All treatments were well tolerated in healthy participants. Clinical Trial Registry http://www.chinadrugtrials.org.cn/clinicaltrials.prosearch.dhtml, CTR20191866.
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Affiliation(s)
- Yueyue Liu
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, 230601, People's Republic of China
| | - Qian Zhang
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, 230601, People's Republic of China
| | - Chao Lu
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, 230601, People's Republic of China
| | - Wei Hu
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, 230601, People's Republic of China
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Wu R, Yuan B, Li C, Wang Z, Song Y, Liu H. A narrative review of advances in treatment and survival prognosis of HER2-positive malignant lung cancers. J Thorac Dis 2021; 13:3708-3720. [PMID: 34277062 PMCID: PMC8264687 DOI: 10.21037/jtd-20-3265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/14/2021] [Indexed: 12/15/2022]
Abstract
Human epidermal growth factor receptor 2 (HER2), as a receptor tyrosine kinase of EGF receptor family, whose mutation is often associated with even if less frequency but poor prognosis and shorter survival in pulmonary malignant tumor. HER2 status include mutation, overexpression, amplification and also some rare genotypes, detected by next generation sequencing (NGS), immunohistochemistry (IHC), and also fluorescence in situ hybridization (FISH). Different genotypes represent different therapeutic targets and indicate different clinical prognosis concluded by previous studies. Unfortunately, no standard guidelines for first-line treatment are widely recognized, and current therapeutic schedules include chemotherapy, radiotherapy, targeted therapy, and immunotherapy. Especially for patients with advanced metastasis, chemotherapy is based as a systemic therapy using studies of breast cancer or EGFR-positive lung adenocarcinoma as a template. Studies already explored treatment including EGFR tyrosine kinase inhibitors (TKIs) such as gefitinib and afatinib, and also trastuzumab and its conjugation like HER2-targeted antibody-drug conjugate trastuzumab emtansine (T-DM1) and conjugate trastuzumab deruxtecan (T-DXd). Also, he researches explored combination therapy with chemotherapy and TKIs or monoclonal antibodies. This review describes commonly used therapies for HER2-positive/HER2-overexpression patients and general relationship between genotypes of HER2, drug selection and final prognosis in order to provide suggestions for future diagnosis and treatment.
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Affiliation(s)
- Ranpu Wu
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Southeast University of Medicine, Nanjing, China
| | - Bingxiao Yuan
- Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, China
| | - Chuling Li
- Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, China
| | - Zimu Wang
- Department of Respiratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Yong Song
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Southeast University of Medicine, Nanjing, China.,Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, China
| | - Hongbing Liu
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Southeast University of Medicine, Nanjing, China.,Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, China
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Tang Z, Lin F, Xiao J, Du X, Zhang J, Li S, Tang G, Chen C, Li J. Case Report: Efficacy of Pyrotinib in ERBB2 Amplification Pulmonary Adenoid Cystic Carcinoma. Front Oncol 2021; 11:605658. [PMID: 33816237 PMCID: PMC8012760 DOI: 10.3389/fonc.2021.605658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 02/24/2021] [Indexed: 02/05/2023] Open
Abstract
Primary pulmonary adenoid cystic carcinomas are salivary tumors that are low-grade malignant and prone to recurrence and metastasis. Surgery is currently the main treatment, but there is no standard with regard to postoperative adjuvant therapy. Adenoid cystic carcinoma is more sensitive to radiotherapy and patients benefit less from chemotherapy, but few studies have focused on targeted therapy, and their conclusions are inconsistent. With respect to primary pulmonary adenoid cystic carcinoma, large-scale studies cannot be conducted due to its low incidence, and studies on the targeted therapy of it are very scarce. A few case reports indicate that targeted therapy can be effective however, suggesting that it may be a good option. The current report is the first on the occurrence of human epidermal growth factor receptor 2 amplification in pulmonary adenoid cystic carcinoma. The patient was treated with pyrotinib for 6 months and achieved stable disease.
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Affiliation(s)
- Zhongben Tang
- Department of Thoracic, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Feng Lin
- Department of Thoracic, West China Hospital of Sichuan University, Chengdu, China
| | - Jiarong Xiao
- Department of Thoracic, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xiaojun Du
- Department of Thoracic, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jian Zhang
- Department of Thoracic, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Sini Li
- Department of Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences Peking Union Medical College, Beijing, China
| | - Gongshun Tang
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Chen Chen
- Department of Thoracic, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jian Li
- Department of Thoracic, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
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