1
|
Abudureheiyimu N, Wu Y, Li Q, Zhang P, Ma F, Yuan P, Luo Y, Fan Y, Chen S, Cai R, Li Q, Han Y, Xu H, Wang Y, Wang J, Xu B. Docetaxel plus S-1 versus docetaxel plus capecitabine as first-line treatment for advanced breast cancer patients: a prospective randomized phase II study. JOURNAL OF THE NATIONAL CANCER CENTER 2023; 3:115-120. [PMID: 39035725 PMCID: PMC11256714 DOI: 10.1016/j.jncc.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 04/24/2023] [Accepted: 05/17/2023] [Indexed: 07/23/2024] Open
Abstract
Background This study was conducted to evaluate the efficacy and safety of docetaxel/S-1 (TS) compared with docetaxel/capecitabine (TX) as a first-line treatment for advanced breast cancer. Methods Patients with advanced metastatic breast cancer were randomly divided into the TS group (n = 54) and the TX group (n = 57) for first-line chemotherapy from August 2015 to April 2019 (ClinicalTrials.org registration no. NCT02947061). Following the completion of combination therapy, patients without progression received S-1 or capecitabine maintenance treatment. The primary end point was progression-free survival (PFS). Results Among 111 enrolled patients, the median PFS did not differ significantly between the TS group and the TX group (TS vs. TX, 9.0 vs. 7.4 months, P = 0.365, 95% confidence interval [CI]: 0.50-1.11, hazard ratio [HR]: 0.75). There was also no statistically significant difference in median overall survival (OS) between the two groups (TS vs. TX, 40.2 vs. 41.3 months, P = 0.976). In addition, visceral metastasis and metastasis sites, such as the liver or lung, did not lead to a significant effect on PFS and OS. The two regimens showed no significant difference in adverse events, except hand-foot syndrome, which predominated in the TX group (38.6% vs. 7.4%, P = 0.001), and diarrhea (24.1% vs. 3.6%, P = 0.003) and elevation of aspartate aminotransferase (AST)/alanine aminotransferase (ALT) levels (14.8% vs. 3.5%, P = 0.049), which were more frequent in the TS group. Conclusions The TS and TX regimens demonstrated similar efficacy and safety for the first-line treatment of advanced breast cancer. The TS regimen had fewer cases of severe hand-foot syndrome than the TX regimen, representing an effective alternative option to the TX regimen. Further studies are warranted to define the efficacy and safety of this strategy in real-world settings.
Collapse
Affiliation(s)
- Nilupai Abudureheiyimu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yun Wu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qing Li
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Pin Zhang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fei Ma
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Yuan
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yang Luo
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Fan
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shanshan Chen
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruigang Cai
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiao Li
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiqun Han
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hangcheng Xu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yan Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiayu Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Binghe Xu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
2
|
Orrantia-Borunda E, Anchondo-Nuñez P, Acuña-Aguilar LE, Gómez-Valles FO, Ramírez-Valdespino CA. Subtypes of Breast Cancer. Breast Cancer 2022. [DOI: 10.36255/exon-publications-breast-cancer-subtypes] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
3
|
Li X, Fliegel L. Permissive role of Na +/H + exchanger isoform 1 in migration and invasion of triple-negative basal-like breast cancer cells. Mol Cell Biochem 2022; 477:1207-1216. [PMID: 35084672 DOI: 10.1007/s11010-022-04370-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/20/2022] [Indexed: 12/14/2022]
Abstract
In breast cancer, it is the resulting metastasis that is the primary cause of fatality. pH regulatory proteins and the tumor microenvironment play an important role in metastasis of cancer cells and acid-extruding proteins are critical in this process. There are several types of breast cancer and triple-negative breast cancer tends to be more metastatic and invasive and is itself is composed of several types. MDA-MB-468 are a triple-negative breast cancer cell line and are classified as basal-like and basal tumors account for up to 15% of breast cancers. Here we examined the effect of removal of the acid-extruding protein, the Na+/H+ exchanger isoform one, from MDA-MB-468 cells. NHE1 was deleted from these cells using the CRISPR/Cas9 system. Western blotting and measurement of activity confirmed the absence of the protein. In wounding/cell migration experiments, deletion of NHE1 reduced the rate of cell migration in the presence of low- or high-serum concentrations. Anchorage-dependent colony formation was also greatly reduced by deletion of the NHE1 protein. Cell proliferation was not affected by knockout of NHE1. The results demonstrate that NHE1 has an important role in migration and invasion of basal-like triple-negative breast cancer cells.
Collapse
Affiliation(s)
- Xiuju Li
- Department of Biochemistry, Faculty of Medicine, University Alberta, Edmonton, AB, T6G 2H7, Canada
| | - Larry Fliegel
- Department of Biochemistry, Faculty of Medicine, University Alberta, Edmonton, AB, T6G 2H7, Canada.
| |
Collapse
|
4
|
Li L, Zhan Q, Yi K, Chen N, Li X, Yang S, Hou X, Zhao J, Yuan X, Kang C. Engineering Lipusu by lysophosphatidylcholine for improved tumor cellular uptake and anticancer efficacy. J Mater Chem B 2022; 10:1833-1842. [DOI: 10.1039/d1tb02823e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Liposomes have been developed as drug delivery carriers to enhance the antitumor efficiency of the therapeutic agents. Lipusu® (Lip), a paclitaxel (PTX) liposome, has been widely used in the treatment...
Collapse
|
5
|
Wu Y, Han Y, Yu P, Ouyang Q, Yan M, Wang X, Hu X, Jiang Z, Huang T, Tong Z, Wang S, Yin Y, Li H, Yang R, Yang H, Teng Y, Sun T, Cai L, Li H, Chen X, He J, Liu X, Yang S, Qiao Y, Fan J, Wang J, Xu B. Endocrine Therapy for Hormone Receptor-Positive Advanced Breast Cancer: A Nation-Wide Multicenter Epidemiological Study in China. Front Oncol 2021; 10:599604. [PMID: 33643905 PMCID: PMC7905089 DOI: 10.3389/fonc.2020.599604] [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: 08/27/2020] [Accepted: 12/29/2020] [Indexed: 01/07/2023] Open
Abstract
Background Clinical guidelines generally recommend endocrine therapy (ET) as first-line treatment of hormone receptor-positive advanced breast cancer (HR+ ABC) whereas chemotherapy (CT) should be considered in the presence of life-threatening disease or limited clinical benefit after three sequential ET regimens. However, it is unclear if real-world clinical practice is in accordance with the current guidelines. This study was to present the real-world treatment patterns and ET regimens among HR+ ABC patients in China. Methods Using data from the Nation-wide Multicenter Retrospective Clinical Epidemiology Study of Female Advanced Breast Cancer in China (ClinicalTrials.gov identifier: NCT03047889), we investigated the clinicopathological characteristics, clinical profiles, and treatment patterns of HR+ ABC patients from January 2012 to December 2014. Results A total of 2,342 patients with HR+ ABC were included in this study. Our findings revealed that, in comparisons with those receiving initial CT (n = 1445), patients initiated ET (n =402) were significantly older, later recurrent after adjuvant treatment, with a lower rate of visceral involvement and a decreasing quantity of metastatic sites. A total of 1,308 patients received palliative ET while only 18.9% patients (n = 247) reached three lines of ET. Among patients completing more than one line of ET, the median treatment duration was 8 months for the first line, 6 months for the second line, and 3 months for the third line for patients receiving ET. In the advanced setting, the choices of palliative ET regimens were diverse, yet aromatase inhibitor (AI) monotherapy was still the overall mainstay of ET; in contrast, patients were less accessible to everolimus plus AI regimen in this population. Conclusions Less than one quarter of patients initiated palliative ET for HR+ ABC in routine clinical practice. Patients who received multi-lines of ET experienced successive shorter durations following each line of therapy. This real-life data provides a solid overview of ET for HR+ ABC from China, indicating unmet need for treatment options that improve the effectiveness of endocrine therapy.
Collapse
Affiliation(s)
- Yun Wu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiqun Han
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Pei Yu
- Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Quchang Ouyang
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital, Changsha, China
| | - Min Yan
- Department of Breast Disease, Henan Breast Cancer Center, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China
| | - Xiaojia Wang
- Department of Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Xichun Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Zefei Jiang
- Department of Breast Cancer, The Fifth Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Tao Huang
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhongsheng Tong
- Department of Breast Oncology, Key Laboratory of Breast Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Shusen Wang
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yongmei Yin
- Department of Medical Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hui Li
- Department of Breast Surgery, Sichuan Province Tumor Hospital, Chengdu, China
| | - Runxiang Yang
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, China
| | - Huawei Yang
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Guangxi, China
| | - Yuee Teng
- Department of Medical Oncology and Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Tao Sun
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Key Laboratory of Liaoning Breast Cancer Research, Shenyang, China
| | - Li Cai
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Hongyuan Li
- Department of the Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China
| | - Xi Chen
- Department of Medicine Oncology, 900 Hospital of the Joint Logistics Team, Fuzhou, China
| | - Jianjun He
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xinlan Liu
- Department of Oncology, General Hospital of Ningxia Medical University, Ningxia, China
| | - Shune Yang
- Department of Breast Cancer and Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
| | - Youlin Qiao
- Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jinhu Fan
- Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiayu Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Binghe Xu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
6
|
Zhao T, Zhou H, Wu W, Song X, Gong T. A multistage oral delivery system of PTX for improving oral bioavailability and enhancing anticancer efficacy. Drug Dev Ind Pharm 2021; 47:259-267. [PMID: 33501858 DOI: 10.1080/03639045.2021.1879831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE Bromotetrandrine (W198) was reported as a P-glycoprotein (P-gp) inhibitor. We aimed to prepare oral W198 micelles following by paclitaxel (PTX) micelles (W198/PTX micelles) to improve the clinical application of PTX. SIGNIFICANCE The poor water solubility, intestinal permeability, and multidrug resistance (MDR) of PTX can be improved in the multistage oral delivery system. METHODS The novel W198/PTX oral micelles were developed by water-bath ultrasound method and were evaluated in vivo and in vitro in 4T1 orthotopic tumor-bearing mice model. RESULTS PTX micelles and W198 micelles were prepared to be round and uniform. W198 micelles pre-administrated group showed higher cellular uptake efficiency of PTX on Caco-2 cells and more prominent cytotoxicity compared with W198-untreated group on 4T1 cells. The oral bioavailability of W198/PTX micelles group was nearly 5.7-folds higher than the PTX micelles only group. In addition, W198/PTX micelles showed enhanced anticancer efficacy. CONCLUSIONS We established a multistage oral delivery system to improve oral bioavailability and anticancer efficacy of PTX.
Collapse
Affiliation(s)
- Ting Zhao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, P. R. China
| | - Hongli Zhou
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, P. R. China
| | - Wanyan Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, P. R. China
| | - Xu Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, P. R. China.,Institute of Regulatory Science for Medical Devices, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, P. R. China
| | - Tao Gong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, P. R. China
| |
Collapse
|
7
|
Gupta G, Lee CD, Guye ML, Van Sciver RE, Lee MP, Lafever AC, Pang A, Tang-Tan AM, Winston JS, Samli B, Jansen RJ, Hoefer RA, Tang AH. Unmet Clinical Need: Developing Prognostic Biomarkers and Precision Medicine to Forecast Early Tumor Relapse, Detect Chemo-Resistance and Improve Overall Survival in High-Risk Breast Cancer. ACTA ACUST UNITED AC 2020; 4:48-57. [PMID: 32542231 PMCID: PMC7295150 DOI: 10.36959/739/525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chemo-resistant breast cancer is a major barrier to curative treatment for a significant number of women with breast cancer. Neoadjuvant chemotherapy (NACT) is standard first- line treatment for most women diagnosed with high-risk TNBC, HER2+, and locally advanced ER+ breast cancer. Current clinical prognostic tools evaluate four clinicopathological factors: Tumor size, LN status, pathological stage, and tumor molecular subtype. However, many similarly treated patients with identical residual cancer burden (RCB) following NACT experience distinctly different tumor relapse rates, clinical outcomes and survival. This problem is particularly apparent for incomplete responders with a high-risk RCB classification following NACT. Therefore, there is a pressing need to identify new prognostic and predictive biomarkers, and develop novel curative therapies to augment current standard of care (SOC) treatment regimens to save more lives. Here, we will discuss these unmet needs and clinical challenges that stand in the way of precision medicine and personalized cancer therapy.
Collapse
Affiliation(s)
- Gagan Gupta
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Caroline Dasom Lee
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Mary L Guye
- Sentara Surgery Specialists, Sentara CarePlex Hospital, USA.,Sentara Cancer Network, Sentara Hospital Systems, USA
| | - Robert E Van Sciver
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Michael P Lee
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Alex C Lafever
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Anthony Pang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Angela M Tang-Tan
- Department of Molecular and Cell Biology, University of California, USA
| | - Janet S Winston
- Department of Pathology, Pathology Sciences Medical Group, Sentara Norfolk General Hospital, USA
| | - Billur Samli
- Department of Pathology, Pathology Sciences Medical Group, Sentara Norfolk General Hospital, USA
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, USA
| | - Richard A Hoefer
- Sentara Cancer Network, Sentara Hospital Systems, USA.,Dorothy G. Hoefer Foundation, Sentara CarePlex Hospital, USA
| | - Amy H Tang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| |
Collapse
|
8
|
Verma AK, Fatima K, Dudi RK, Tabassum M, Iqbal H, Kumar Y, Luqman S, Mondhe D, Chanda D, Khan F, Shanker K, Negi AS. Antiproliferative activity of diarylnaphthylpyrrolidine derivative via dual target inhibition. Eur J Med Chem 2020; 188:111986. [DOI: 10.1016/j.ejmech.2019.111986] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/05/2019] [Accepted: 12/17/2019] [Indexed: 11/27/2022]
|
9
|
Chen S, Yang J, Liu Y, You H, Dong Y, Lyu J. Prognostic factors and survival outcomes according to tumor subtype in patients with breast cancer lung metastases. PeerJ 2019; 7:e8298. [PMID: 31871847 PMCID: PMC6924336 DOI: 10.7717/peerj.8298] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 11/26/2019] [Indexed: 12/31/2022] Open
Abstract
Background Reports on the incidence and prognoses of lung metastases when diagnosing breast cancer patients with different subtypes are limited. Our study investigated the effect of molecular sub-typing stratification on the prognoses of lung metastatic breast caner patients. Methods Patients with breast cancer and lung metastases were identified from Surveillance, Epidemiology and End Results population-based data between 2010 and 2015. Univariate and multivariate Cox regression analyses were performed to identify risk factors and prognoses, overall survival (OS) and breast cancer-specific survival for patients with breast cancer lung metastases. Results We identified 6,516 patients with lung metastatic breast cancer, representing 1.7% of the entire cohort and 30.4% of the subset with metastatic disease. This included 2,940 hormone receptor (HR)+/HER2- patients, 852 HR+/HER2+ patients, 547 HR-/HER2+ patients and 983 triple-negative patients. The median OS for all lung metastatic patients was 13 months. Multivariate analysis revealed that those lung metastatic breast cancer patients of older age (>80), black race, with poorly differentiated tumors, carcinoma histology, triple-negative subtype, more metastatic sites and no surgery, and no chemotherapy showed significantly poor survival, both overall and breast cancer-specific. Conclusions Our findings show that molecular sub-type and more metastatic sites might have significant influence on the incidence and prognosis of breast cancer lung metastases. We also identified several prognostic factors that could guide therapy selection in the treatment of lung metastatic patients.
Collapse
Affiliation(s)
- Siying Chen
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jin Yang
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Yang Liu
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Haisheng You
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yalin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jun Lyu
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| |
Collapse
|
10
|
Khatravath M, Mallurwar NK, Konda S, Gaddam J, Rao P, Iqbal J, Arya P. Synthesis of C1–C11 eribulin fragment and its diastereomeric analogues. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Huang S, Chi Y, Chi W, Guo R, Su Y, Xue J, Zhou S, Wang J, Yang Z, Nie J, Shao Z, Chen D, Wu J. LINC00309 is associated with short disease-free survival in breast cancer. Cancer Cell Int 2019; 19:210. [PMID: 31406486 PMCID: PMC6686222 DOI: 10.1186/s12935-019-0887-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/19/2019] [Indexed: 02/07/2023] Open
Abstract
Background Long non-coding RNAs play an important role in breast cancer. Even with adjuvant hormone therapy, patients with estrogen receptor positive breast cancer can present with recurrences and distant metastases. We investigated whether the expression of a novel long non-coding RNA LINC00309 can predict the outcome of breast cancer, especially for hormone-receptor positive patients. Methods This retrospective study collected 290 breast cancer patients including 161 patients with hormone-positive. qPCR was performed to detect the expression of LINC00309. Kaplan–Meier and Cox risk proportion model were applied to disclose the function of LINC00309 for breast cancer prognosis. Results LINC00309 high expression was an independent predictor for worse disease-free survival (HR = 2.127; 95% CI 1.074–4.212; p = 0.030) and associated with a shorter disease-free survival (p = 0.027), especially in hormone-positive breast cancer patients (p = 0.001). Also LINC00309 high expression was associated with a shorter disease-free survival both in selective estrogen receptor modulator related hormone therapy (p = 0.025) and aromatase inhibitors related hormone therapy (p = 0.048). Moreover, LINC00309 was an independent predictor of worse disease-free survival in hormone-receptor positive breast cancer patients on univariate (HR = 4.505; 95% CI 1.722–11.785; p = 0.002) and multivariate (HR = 4.159; 95% CI 1.537–11.251; p = 0.005) analyses. Conclusion In breast cancer, Linc00309 is significantly associated with poor prognosis and may represent a new marker of prognosis. Electronic supplementary material The online version of this article (10.1186/s12935-019-0887-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Sheng Huang
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,The 2nd Department of Breast Surgery, Breast Cancer Center of the Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Building 3, No. 519 Kunzhou Road, Kunming, 650118 China
| | - Yayun Chi
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Weiru Chi
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Rong Guo
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yonghui Su
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jingyan Xue
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shaoqiang Zhou
- The 2nd Department of Breast Surgery, Breast Cancer Center of the Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Building 3, No. 519 Kunzhou Road, Kunming, 650118 China
| | - Jiankui Wang
- The 2nd Department of Breast Surgery, Breast Cancer Center of the Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Building 3, No. 519 Kunzhou Road, Kunming, 650118 China
| | - Zhuangqing Yang
- The 2nd Department of Breast Surgery, Breast Cancer Center of the Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Building 3, No. 519 Kunzhou Road, Kunming, 650118 China
| | - Jianyun Nie
- The 2nd Department of Breast Surgery, Breast Cancer Center of the Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Building 3, No. 519 Kunzhou Road, Kunming, 650118 China
| | - Zhimin Shao
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Dedian Chen
- The 2nd Department of Breast Surgery, Breast Cancer Center of the Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Building 3, No. 519 Kunzhou Road, Kunming, 650118 China
| | - Jiong Wu
- 1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Building 2, No. 270 Dong An Road, Shanghai, 200032 China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| |
Collapse
|
12
|
Ditsatham C, Chitapanarux I, Somwangprasert A, Watcharachan K, Wongmaneerung P, Charoentum C, Chewaskulyong B, Chakrabandhu S, Onchan W, Teeyasuntranonn A, Sripan P. Outcome of eribulin as a late treatment line for Thai metastatic breast cancer patients. Onco Targets Ther 2018; 11:4443-4447. [PMID: 30104885 PMCID: PMC6074808 DOI: 10.2147/ott.s166399] [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: 12/04/2022] Open
Abstract
Background We report the safety and efficacy of eribulin as a late treatment line in Thai metastatic breast cancer (MBC) patients. Patients and methods A total of 30 MBC patients treated with eribulin between January 2014 and January 2017 were retrospectively analyzed. The patients were scheduled to receive 1.4 mg/m2 of eribulin on day 1, day 8 and subsequently every 21 days. All patients had previously received at least three chemotherapy regimens including anthracycline and taxane. Response rate and progression-free survival (PFS) were analyzed. Results The median age was 56 years (range, 40–74 years), with a median follow-up time of 5.7 months (range, 0.2–25 months). The overall response rate was 30% (nine patients): four patients had triple-negative breast cancer, three patients had luminal B breast cancer and two patients had luminal A breast cancer. The median PFS was 2.9 months (range, 0.2–14 months). The median number of previous chemotherapy regimens was 4 (range, 3–9). Univariate analysis showed that the number of regimens (four or fewer) prior to eribulin was statistically associated with superior PFS (P = 0.009). Multivariate analysis also showed similar statistical association between number of prior regimens (four or fewer) and better PFS adjusted by age group (≥50 years; hazard ratio = 1.29; 95% CI: 1.0–1.65; P = 0.046). There were no toxic deaths or grade 4 toxicities. Nine (30%) patients had grade 3 anemia toxicities, and the other common toxicities were leukopenia and neutropenia. Four (13%) patients required dose reduction and 16 (53%) patients required dose delay because of toxicities. Conclusion Eribulin is an effective drug for heavily pretreated MBC patients with tolerable toxicities. The benefit was superior in patients who received fewer than four previous chemotherapy regimens.
Collapse
Affiliation(s)
| | - Imjai Chitapanarux
- Division of Radiation Oncology, .,Northern Thai Research Group of Radiation Oncology, .,Chiang Mai Cancer Registry, Maharaj Nakorn Chiang Mai Hospital,
| | | | | | | | | | | | | | | | - Anongnart Teeyasuntranonn
- Pharmacy Division, Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | |
Collapse
|
13
|
Zhang Q, Wang J, Zhang H, Liu D, Ming L, Liu L, Dong Y, Jian B, Cai D. The anticancer efficacy of paclitaxel liposomes modified with low-toxicity hydrophobic cell-penetrating peptides in breast cancer: an in vitro and in vivo evaluation. RSC Adv 2018; 8:24084-24093. [PMID: 35539172 PMCID: PMC9081855 DOI: 10.1039/c8ra03607a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/18/2018] [Indexed: 12/02/2022] Open
Abstract
In our recent study, hydrophobic cell-penetrating peptides (CPPs) were demonstrated as an effective method of improving cancer treatment. To provide more evidence and broaden the application range for this promising strategy of improving cancer treatment, novel hydrophobic CPP-modified (PFV-modified) nanoliposomes loaded with paclitaxel, termed PFV-Lip-PTX, were developed as a treatment for breast cancer. Physicochemical evaluations of PFV-Lip-PTX revealed spheroid-like regular vesicles of about 120 nm in diameter with negative charge. An in vitro release study indicated that PTX was released from the liposomes in a controlled and sustained manner. A cellular uptake study indicated that PFV-Lip-PTX exhibited higher internalization efficiency in MCF-7 cells than non-modified liposomes. It was also demonstrated that PFV modification improved the cytotoxicity of PTX via a hydrophobic interaction between the PFV-Lip and cell lipid membranes compared with non-modified liposomes. Moreover, in vivo studies demonstrated that the PFV-modified liposomes led to highly efficient targeting and accumulation in an MCF-7 xenograft tumor and improved the antitumor efficacy of PTX. Finally, PFV-Lip-PTX showed low systemic toxicity evidenced by fewer changes in the body weights of mice and no visible histological changes in major healthy organs. Therefore, our results indicate that PFV-Lip-PTX has great potential in tumor-targeting and effective antitumor treatment. Hydrophobic cell penetrating peptide PFVYLI-modified liposomes have been developed for the targeted delivery of PTX into tumors.![]()
Collapse
Affiliation(s)
- Qi Zhang
- Institute of Medicine and Drug Research
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| | - Jing Wang
- Institute of Medicine and Drug Research
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| | - Hao Zhang
- Institute of Medicine and Drug Research
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| | - Dan Liu
- Institute of Medicine and Drug Research
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| | - Linlin Ming
- The Third Affiliated Hospital
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| | - Lei Liu
- Institute of Medicine and Drug Research
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| | - Yan Dong
- College of Pharmacy
- Qiqihar Medical University
- Qiqihar
- P. R. China
| | - Baiyu Jian
- College of Pharmacy
- Qiqihar Medical University
- Qiqihar
- P. R. China
| | - Defu Cai
- Institute of Medicine and Drug Research
- Qiqihar Medical University
- Qiqihar 161006
- P. R. China
| |
Collapse
|
14
|
Savci-Heijink CD, Halfwerk H, Koster J, Van de Vijver MJ. Association between gene expression profile of the primary tumor and chemotherapy response of metastatic breast cancer. BMC Cancer 2017; 17:755. [PMID: 29132326 PMCID: PMC5683464 DOI: 10.1186/s12885-017-3691-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 10/16/2017] [Indexed: 12/31/2022] Open
Abstract
Background To better predict the likelihood of response to chemotherapy, we have conducted a study comparing the gene expression patterns of primary tumours with their corresponding response to systemic chemotherapy in the metastatic setting. Methods mRNA expression profiles of breast carcinomas of patients that later developed distant metastases were analyzed using supervised and non-supervised classification techniques to identify predictors of response to chemotherapy. The top differentially expressed genes between the responders and non-responders were identified and further explored. An independent dataset which was generated to predict response to neo-adjuvant CT was utilized for the purpose of validation. Response to chemotherapy was also correlated to the clinicopathologic characteristics, molecular subtypes, metastatic behavior and survival outcomes. Results Anthracycline containing regimens were the most common first line treatment (58.4%), followed by non-anthracycline/non-taxane containing (25.8%) and taxane containing (15.7%) regimens. Response was achieved in 41.6% of the patients to the first line CT and in 21.8% to second line CT. Response was not found to be significantly correlated to tumour type, grade, lymph node status, ER and PR status. Patients with HER2+ tumours showed better response to anthracycline containing therapy (p: 0.002). Response to first and second line chemotherapy did not differ among gene expression based molecular subtypes (p: 0.236 and p: 0.20). Using supervised classification, a 14 gene response classifier was identified. This 14-gene predictor could successfully predict the likelihood of better response to first and second line CT (p: <.0001 and p: 0.761, respectively) in the training set. However, the predictive value of this gene set in data of response to neoadjuvant chemotherapy could not be validated. Conclusions To our knowledge, this is the first study revealing the relation between gene expression profiles of the primary tumours and their chemotherapy responsiveness in the metastatic setting. In contrast to the findings for neoadjuvant chemotherapy treatment, there was no association of molecular subtype with response to chemotherapy in the metastatic setting. Using supervised classification, we identified a classifier of chemotherapy response; however, we could not validate this classifier using neoadjuvant response data. Trial registration Non applicable. Subjects were retrospectively registered. Electronic supplementary material The online version of this article (10.1186/s12885-017-3691-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | - Hans Halfwerk
- Department of Pathology, Academic Medical Center, Meibergdreef 9, 1105, Amsterdam, AZ, Netherlands
| | - Jan Koster
- Department of Oncogenomics, Academic Medical Center, Meibergdreef 9, 1105, Amsterdam, AZ, Netherlands
| | - Marc Joan Van de Vijver
- Department of Pathology, Academic Medical Center, Meibergdreef 9, 1105, Amsterdam, AZ, Netherlands.
| |
Collapse
|
15
|
In vivo validation of metastasis-regulating microRNA-766 in human triple-negative breast cancer cells. Lab Anim Res 2017; 33:256-263. [PMID: 29046702 PMCID: PMC5645605 DOI: 10.5625/lar.2017.33.3.256] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 01/01/2023] Open
Abstract
Breast cancer is the second most common cancer and the most frequent cancer in women worldwide. Recent improvements in early detection and effective adjuvant chemotherapies have improved the survival of breast cancer patients. Even with initial disease remission, one-third of all breast cancer patients will relapse with distant metastasis. Breast cancer metastasis is largely an incurable disease and the main cause of death among breast cancer patients. Cancer metastasis is comprised of complex processes that are usually not controllable by intervention of a single molecular target. As a single microRNA (miRNA) can affect the aggressiveness of breast cancer cells by concurrently modulating multiple pathway effectors, a metastasis-regulating miRNA would represent a good disease target candidate. In this study, we evaluated the functional capacity of a newly defined human metastasis-related miRNA, miR-766, which was previously identified by comparing a patient-derived xenograft primary tumor model and a metastasis model. Compared to vector-transfected control cells, miR-766-overexpressed triple-negative breast cancer cells exhibited similar primary tumor growth in the orthotopic xenograft model. In contrast, tumor sphere formation and Matrigel invasion were significantly decreased in miR-766-overexpressed breast cancer cells compared with control cancer cells. In addition, lung metastasis was dramatically reduced in miR-766-overexpressed breast cancer cells compared with control cells. Thus, miR-766 affected the distant metastasis process to a greater extent than cancer cell proliferation and primary tumor growth, and may represent a future therapeutic target to effectively control fatal breast cancer metastasis.
Collapse
|
16
|
白 秀, 杨 薇, 严 昆. 乳腺癌肝转移治疗现状及射频消融的应用及前景. Shijie Huaren Xiaohua Zazhi 2017; 25:1143-1149. [DOI: 10.11569/wcjd.v25.i13.1143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
乳腺癌是女性发病率和死亡率最高的恶性肿瘤. 乳腺癌晚期常发生转移, 好发转移部位依次为骨、肺、肝等. 近年来, 虽然乳腺癌肝转移(breast cancer liver metastases, BCLM)治疗成功率逐渐提高, 但是BCLM的预后仍然较差. 目前, BCLM的治疗方式尚未成熟, 主要以手术切除、化疗、射频消融(radiofrequency ablation, RFA)治疗、肝动脉栓塞灌注化疗等为主. 本文回顾分析了国内外有关治疗BCLM治疗的文献, 其中重点关注BCLM局部治疗中的RFA治疗, 分析RFA治疗BCLM的应用及前景.
Collapse
|
17
|
Oh K, Lee OY, Park Y, Seo MW, Lee DS. IL-1β induces IL-6 production and increases invasiveness and estrogen-independent growth in a TG2-dependent manner in human breast cancer cells. BMC Cancer 2016; 16:724. [PMID: 27609180 PMCID: PMC5017052 DOI: 10.1186/s12885-016-2746-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 08/25/2016] [Indexed: 12/20/2022] Open
Abstract
Background We previously reported that IL-6 and transglutaminase 2 (TG2) were expressed in more aggressive basal-like breast cancer cells, and TG2 and IL-6 expression gave these cells stem-cell-like phenotypes, increased invasive ability, and increased metastatic potential. In the present study, the underlying mechanism by which IL-6 production is induced in luminal-type breast cancer cells was evaluated, and TG2 overexpression, IL-1β stimulation, and IL-6 expression were found to give cancerous cells a hormone-independent phenotype. Methods Luminal-type breast cancer cells (MCF7 cells) were stably transfected with TG2. To evaluate the requirement for IL-6 neogenesis, MCF7 cells were stimulated with various cytokines. To evaluate tumorigenesis, cancer cells were grown in a three-dimensional culture system and grafted into the mammary fat pads of NOD/scid/IL-2Rγ−/− mice. Results IL-1β induced IL-6 production in TG2-expressing MCF7 cells through an NF-kB-, PI3K-, and JNK-dependent mechanism. IL-1β increased stem-cell-like phenotypes, invasiveness, survival in a three-dimensional culture model, and estrogen-independent tumor growth of TG2-expressing MCF7 cells, which was attenuated by either anti-IL-6 or anti-IL-1β antibody treatment. Conclusion Within the inflammatory tumor microenvironment, IL-1β increases luminal-type breast cancer cell aggressiveness by stimulating IL-6 production through a TG2-dependent mechanism. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2746-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Keunhee Oh
- Laboratory of Immunology and Cancer Biology, Department of Biomedical Sciences, Transplantation Research Institute, Seoul National University College of Medicine, 103 Daehak-ro Jongno-gu, Seoul, Korea. .,PharmAbcine, Inc., #461-8, DaejeonBioventure Town, Jeonmin-dong, Yusung-gu, Daejeon, Korea.
| | - Ok-Young Lee
- Laboratory of Immunology and Cancer Biology, Department of Biomedical Sciences, Transplantation Research Institute, Seoul National University College of Medicine, 103 Daehak-ro Jongno-gu, Seoul, Korea
| | - Yeonju Park
- Laboratory of Immunology and Cancer Biology, Department of Biomedical Sciences, Transplantation Research Institute, Seoul National University College of Medicine, 103 Daehak-ro Jongno-gu, Seoul, Korea
| | - Myung Won Seo
- Laboratory of Immunology and Cancer Biology, Department of Biomedical Sciences, Transplantation Research Institute, Seoul National University College of Medicine, 103 Daehak-ro Jongno-gu, Seoul, Korea
| | - Dong-Sup Lee
- Laboratory of Immunology and Cancer Biology, Department of Biomedical Sciences, Transplantation Research Institute, Seoul National University College of Medicine, 103 Daehak-ro Jongno-gu, Seoul, Korea.
| |
Collapse
|
18
|
van Reesema LLS, Zheleva V, Winston JS, Jansen RJ, O'Connor CF, Isbell AJ, Bian M, Qin R, Bassett PT, Hinson VJ, Dorsch KA, Kirby BW, Van Sciver RE, Tang-Tan AM, Harden EA, Chang DZ, Allen CA, Perry RR, Hoefer RA, Tang AH. SIAH and EGFR, Two RAS Pathway Biomarkers, are Highly Prognostic in Locally Advanced and Metastatic Breast Cancer. EBioMedicine 2016; 11:183-198. [PMID: 27569656 PMCID: PMC5049993 DOI: 10.1016/j.ebiom.2016.08.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 08/03/2016] [Accepted: 08/10/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Metastatic breast cancer exhibits diverse and rapidly evolving intra- and inter-tumor heterogeneity. Patients with similar clinical presentations often display distinct tumor responses to standard of care (SOC) therapies. Genome landscape studies indicate that EGFR/HER2/RAS "pathway" activation is highly prevalent in malignant breast cancers. The identification of therapy-responsive and prognostic biomarkers is paramount important to stratify patients and guide therapies in clinical oncology and personalized medicine. METHODS In this study, we analyzed matched pairs of tumor specimens collected from 182 patients who received neoadjuvant systemic therapies (NST). Statistical analyses were conducted to determine whether EGFR/HER2/RAS pathway biomarkers and clinicopathological predictors, alone and in combination, are prognostic in breast cancer. FINDINGS SIAH and EGFR outperform ER, PR, HER2 and Ki67 as two logical, sensitive and prognostic biomarkers in metastatic breast cancer. We found that increased SIAH and EGFR expression correlated with advanced pathological stage and aggressive molecular subtypes. Both SIAH expression post-NST and NST-induced changes in EGFR expression in invasive mammary tumors are associated with tumor regression and increased survival, whereas ER, PR, and HER2 were not. These results suggest that SIAH and EGFR are two prognostic biomarkers in breast cancer with lymph node metastases. INTERPRETATION The discovery of incorporating tumor heterogeneity-independent and growth-sensitive RAS pathway biomarkers, SIAH and EGFR, whose altered expression can be used to estimate therapeutic efficacy, detect emergence of resistant clones, forecast tumor regression, differentiate among partial responders, and predict patient survival in the neoadjuvant setting, has a clear clinical implication in personalizing breast cancer therapy. FUNDING This work was supported by the Dorothy G. Hoefer Foundation for Breast Cancer Research (A.H. Tang); Center for Innovative Technology (CIT)-Commonwealth Research Commercialization Fund (CRCF) (MF14S-009-LS to A.H. Tang), and National Cancer Institute (CA140550 to A.H. Tang).
Collapse
Affiliation(s)
- Lauren L Siewertsz van Reesema
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Vasilena Zheleva
- Department of Surgery, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Janet S Winston
- Sentara Pathology and Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), 600 Gresham Drive, Norfolk, VA 23507, United States
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND 58102, United States
| | - Carolyn F O'Connor
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Andrew J Isbell
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Minglei Bian
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Rui Qin
- Department of Health Sciences Research, Mayo Clinic Cancer Center, Mayo Clinic, Rochester, MN 55905, United States
| | - Patricia T Bassett
- Sentara Pathology and Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), 600 Gresham Drive, Norfolk, VA 23507, United States
| | - Virginia J Hinson
- Sentara Pathology and Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), 600 Gresham Drive, Norfolk, VA 23507, United States
| | - Kimberly A Dorsch
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Brad W Kirby
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Robert E Van Sciver
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Angela M Tang-Tan
- Princess Anne High School, International Baccalaureate (IB) Gifted and Talented Program, 4400 Virginia Beach Boulevard, Virginia Beach, VA 23462, United States
| | - Elizabeth A Harden
- Dorothy G. Hoefer Comprehensive Breast Center, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States; Virginia Oncology Associates, 1051 Loftis Blvd, Suite 100, Newport News, VA 23606, United States
| | - David Z Chang
- Virginia Oncology Associates, 1051 Loftis Blvd, Suite 100, Newport News, VA 23606, United States
| | - Cynthia A Allen
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Roger R Perry
- Department of Surgery, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Richard A Hoefer
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States; Dorothy G. Hoefer Comprehensive Breast Center, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States; Sentara CarePlex Hospital, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Amy H Tang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States.
| |
Collapse
|
19
|
Rizzi A, Aroldi F, Bertocchi P, Prochilo T, Mutti S, Savelli G, Fraccon AP, Zaniboni A. GEMOX: An Active Regimen for the Treatment of Luminal and Human Epidermal Growth Factor Receptor 2-Positive Metastatic Breast Cancer. Chemotherapy 2016; 62:30-33. [PMID: 27287263 DOI: 10.1159/000445936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/04/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Pretreated metastatic breast cancer (MBC) remains a formidable challenge with unmet needs both in terms of prolonged survival and quality-of-life-related issues. METHODS We collected data from 27 MBC patients treated with gemcitabine and oxaliplatin (GEMOX) at our institution between June 2009 and April 2015. The patients were heavily pretreated, and all had previously been exposed to anthracyclines and taxanes. RESULTS We achieved a complete response in 1 patient (4%), a partial response in 7 patients (26%) and stable disease in 12 patients (44%), while 6 patients (22%) experienced progressive disease. The response of 1 patient (4%) could not be evaluated because she interrupted her treatment during the first cycle due to a major reaction to oxaliplatin. We observed grade 4 hypertransaminasaemia in only 1 patient (4%) and grade 2 neuropathy in 16 patients (59%). Grade 3 leuconeutropenia was observed in 5 patients (18%). The median progression-free survival was 5.9 months and the median overall survival was 9.6 months. CONCLUSIONS GEMOX is an efficient and well-tolerated salvage regimen for MBC patients.
Collapse
Affiliation(s)
- Anna Rizzi
- Oncology Department, Fondazione Poliambulanza, Brescia, Italy
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Jerusalem G, Rorive A, Collignon J. Chemotherapy options for patients suffering from heavily pretreated metastatic breast cancer. Future Oncol 2016; 11:1775-89. [PMID: 26075446 DOI: 10.2217/fon.15.80] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The identification of additional chemotherapy agents for anthracycline- and taxane-pretreated advanced breast cancer (ABC) is an urgent medical need. Single agent chemotherapy is most times administered because combined therapy is only associated with modest, if any, improvement in median progression-free survival. Randomized trials failed to show overall survival benefit compared with single agent chemotherapy. We hope to modify the natural history of ABC by the consecutive use of treatments with documented activity in heavily pretreated patients. Quality of life remains an important end point as cure is in general not possible. We first review the activity of the approved and the most frequently used agents in heavily pretreated ABC. Thereafter, the potential role and safety profile of etirinotecan pegol is discussed given the results recently released of a Phase III trial comparing this agent to Treatment of Physician's Choice.
Collapse
Affiliation(s)
- Guy Jerusalem
- Medical Oncology CHU Sart Tilman Liege & Liege University, Domaine Universitaire du Sart Tilman, B35, 4000 Liege, Belgium
| | - Andrée Rorive
- Medical Oncology CHU Sart Tilman Liege, Domaine Universitaire du Sart Tilman, B35, 4000 Liege, Belgium
| | - Joëlle Collignon
- Medical Oncology CHU Sart Tilman Liege, Domaine Universitaire du Sart Tilman, B35, 4000 Liege, Belgium
| |
Collapse
|
21
|
Hyaluronic acid-coated liposomes for targeted delivery of paclitaxel, in-vitro characterization and in-vivo evaluation. J Control Release 2016; 229:10-22. [PMID: 26968799 DOI: 10.1016/j.jconrel.2016.03.012] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 12/13/2022]
Abstract
Breast cancer is the leading cause of cancer death in women. Chemotherapy is regarded as the most essential strategy in inhibiting the proliferation of tumor cells. Paclitaxel is a widely used taxane; however, the side effects of available Cremophor-based formulations and also the limitations of passive targeting uncovered an essential need to develop tumor-specific targeted nanocarriers. A hyaluronic acid targeted liposomal formulation of paclitaxel was prepared in which, hyaluronic acid was electrostatistically attracted to the surface of liposomes. Liposomes, had a particle size of 106.4±3.2nm, a weakly negative zeta potential of -9.7±0.8mV and an acceptable encapsulation efficiency of 92.1±1.7%. The release profile of liposomes in buffer showed that 95% of PTX was released during 40h. Confocal laser scanning microscopy and flow cytometry analysis showed the greater cellular internalization of coumarin-loaded liposomes compared to free coumarin. MTT assay on 4T1 and T47D cells demonstrated the stronger cytotoxic activity of liposomes in comparison to free paclitaxel. Cell cycle analysis showed that cells were mainly blocked at G2/M phases after 48h treatment with liposomes. In vivo real time imaging on 4T1 tumor-bearing mice revealed that the liposomal formulation mainly accumulated in the tumor area. Liposomes also had better antitumor efficacy against Cremophor-based formulation. In conclusion, hyaluronic acid targeted paclitaxel liposome can serve as a promising targeted formulation of paclitaxel for future cancer chemotherapy.
Collapse
|
22
|
Goodin S, Barbour S, Song J, Berrak E, Cox D. Safety and tolerability of eribulin mesylate in patients with pretreated metastatic breast cancer. Am J Health Syst Pharm 2015; 72:2150-6. [DOI: 10.2146/ajhp140773] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Susan Goodin
- Robert Wood Johnson Medical School, Rutgers Cancer Institute of New Jersey, New Brunswick
| | | | - James Song
- Oncology, Eisai Inc., Woodcliff Lakes, NJ
| | | | - David Cox
- Medical Affairs, Ipsen Biopharmaceuticals, Basking Ridge, NJ; at the time of writing he was Group Director, Oncology Medical Strategy, Eisai Inc
| |
Collapse
|
23
|
Bhoo-Pathy N, Verkooijen HM, Tan EY, Miao H, Taib NAM, Brand JS, Dent RA, See MH, Subramaniam S, Chan P, Lee SC, Hartman M, Yip CH. Trends in presentation, management and survival of patients with de novo metastatic breast cancer in a Southeast Asian setting. Sci Rep 2015; 5:16252. [PMID: 26536962 PMCID: PMC4633674 DOI: 10.1038/srep16252] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 10/12/2015] [Indexed: 01/18/2023] Open
Abstract
Up to 25% of breast cancer patients in Asia present with de novo metastatic disease. We examined the survival trends of Asian patients with metastatic breast cancer over fifteen years. The impact of changes in patient’s demography, tumor characteristics, tumor burden, and treatment on survival trend were examined. Patients with de novo metastatic breast cancer from three hospitals in Malaysia and Singapore (N = 856) were grouped by year of diagnosis: 1996–2000, 2001–2005 and 2006–2010. Step-wise multivariable Poisson regression was used to estimate the contribution of above-mentioned factors on the survival trend. Proportions of patients presenting with metastatic breast cancer were 10% in 1996–2000, 7% in 2001–2005, and 9% in 2006–2010. Patients in 2006–2010 were significantly older, appeared to have higher disease burden, and received more chemotherapy, endocrine therapy, and surgery of primary tumor. The three-year relative survival in the above periods were 20·6% (95% CI: 13·9%–28·2%), 28·8% (95% CI: 23·4%–34·2%), and 33·6% (95% CI: 28·8%–38·5%), respectively. Adjustment for treatment considerably attenuated the relative excess risk of mortality in recent years, compared to other factors. Substantial improvements in survival were observed in patients with de novo metastatic breast cancer in this study.
Collapse
Affiliation(s)
- Nirmala Bhoo-Pathy
- Julius Centre University of Malaya, Centre for Evidence Based Medicine and Clinical Epidemiology, Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, 50603 Lembah Pantai, Kuala Lumpur, Malaysia.,Julius Center for Health Sciences and Primary Care, University Medical Center, PO Box 85500, 3508 GA Utrecht, The Netherlands
| | - Helena Marieke Verkooijen
- Saw Swee Hock School of Public Health, National University of Singapore, MD3, 16 Medical Drive, Singapore 117597
| | - Ern-Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore
| | - Hui Miao
- Saw Swee Hock School of Public Health, National University of Singapore, MD3, 16 Medical Drive, Singapore 117597
| | - Nur Aishah Mohd Taib
- Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Lembah Pantai, Kuala Lumpur, Malaysia
| | - Judith S Brand
- Institution of Medical Epidemiology and Biostatistics, Karolinska Instituet, Nobels Väg 12A, 171 77 Stockholm, Sweden
| | - Rebecca A Dent
- National Cancer Centre Singapore, 11 Hospital Dr, Singapore 169610.,Duke-NUS Graduate Medical School Singapore, 8 College Road, Singapore 169857
| | - Mee-Hoong See
- Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Lembah Pantai, Kuala Lumpur, Malaysia
| | - ShriDevi Subramaniam
- National Clinical Research Centre, Level 3, Dermatology Block, Kuala Lumpur Hospital, 50586 Jalan Pahang, Kuala Lumpur, Malaysia
| | - Patrick Chan
- Department of General Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore
| | - Soo-Chin Lee
- Department of Hematology Oncology, National University Cancer Institute, National University Health System, Singapore 119228
| | - Mikael Hartman
- Saw Swee Hock School of Public Health, National University of Singapore, MD3, 16 Medical Drive, Singapore 117597
| | - Cheng-Har Yip
- Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Lembah Pantai, Kuala Lumpur, Malaysia
| |
Collapse
|
24
|
Segura-González M, Quintana-Quintana M. Systemic treatment with capecitabine as maintenance therapy in patients with recurring or metastatic breast cancer: experience in the Oncology Hospital, National Medical Center Siglo XXI, Mexican Social Security Institute. Med Oncol 2015; 32:93. [DOI: 10.1007/s12032-015-0533-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 02/13/2015] [Indexed: 11/30/2022]
|
25
|
Pattern of metastasis and outcome in patients with breast cancer. Clin Exp Metastasis 2015; 32:125-33. [PMID: 25630269 DOI: 10.1007/s10585-015-9697-2] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/19/2015] [Indexed: 12/23/2022]
Abstract
There is growing evidence about differences in metastatic spread among breast cancer (BC) biologic subtypes (BS). Aim of this study was to analyze the pattern of metastasization according to BS and to explore the corresponding prognosis. A series of 544 consecutive patients receiving anticancer therapy for metastatic BC from 2004 to 2013, was analyzed. BS were defined by immunohistochemistry according to St Gallen 2013 criteria. Association between BS and the different distant localizations was analyzed. Prognosis was described in terms of overall survival (OS), progression free survival (PFS) and post progression survival (PPS). Results were reported taking luminal A BC as reference. Triple negative BC showed a higher tropism for lung (OR 4.30 95% CI 1.41-13.1), while non luminal HER2 subtype was associated with a higher rate of liver metastases (OR 3.61 95% CI 1.36-9.58). All subtypes were associated with a lower risk of bone-only localization. Central nervous system (CNS) involvement was more common in HER2 positive BC (OR 6.3, 95% CI 1.08-36.66). Liver, lung and CNS involvement influenced negatively OS (HR 1.64, 95% CI 1.29-2.07; HR 1.49, 95% CI 1.18-1.90; HR 2.891, 95% CI 1.85-4.51, respectively) and PFS (HR 1.39, 95% CI 1.13-1.71; HR 1.26, 95% CI 1.02-1.55; HR 1.75, 95% CI 1.12-2.71, respectively). Multivariate analysis confirmed liver involvement as independent predictor of worse OS (HR 1.64, 95% CI 1.15-2.34). Stratification by metastatic pattern showed significant differences in terms of PPS but not in terms of PFS. The study suggests that BS may be characterized by typical patterns of metastatic spread and have different impact on clinical outcome.
Collapse
|
26
|
Acquisition of docetaxel resistance in breast cancer cells reveals upregulation of ABCB1 expression as a key mediator of resistance accompanied by discrete upregulation of other specific genes and pathways. Tumour Biol 2015; 36:4327-38. [DOI: 10.1007/s13277-015-3072-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 01/08/2015] [Indexed: 12/12/2022] Open
|
27
|
Gligorich KM, Vaden RM, Shelton DN, Wang G, Matsen CB, Looper RE, Sigman MS, Welm BE. Development of a screen to identify selective small molecules active against patient-derived metastatic and chemoresistant breast cancer cells. Breast Cancer Res 2014; 15:R58. [PMID: 23879992 PMCID: PMC4028696 DOI: 10.1186/bcr3452] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 04/19/2013] [Accepted: 07/23/2013] [Indexed: 12/13/2022] Open
Abstract
Introduction High failure rates of new investigational drugs have impaired the development of breast cancer therapies. One challenge is that excellent activity in preclinical models, such as established cancer cell lines, does not always translate into improved clinical outcomes for patients. New preclinical models, which better replicate clinically-relevant attributes of cancer, such as chemoresistance, metastasis and cellular heterogeneity, may identify novel anti-cancer mechanisms and increase the success of drug development. Methods Metastatic breast cancer cells were obtained from pleural effusions of consented patients whose disease had progressed. Normal primary human breast cells were collected from a reduction mammoplasty and immortalized with human telomerase. The patient-derived cells were characterized to determine their cellular heterogeneity and proliferation rate by flow cytometry, while dose response curves were performed for chemotherapies to assess resistance. A screen was developed to measure the differential activity of small molecules on the growth and survival of patient-derived normal breast and metastatic, chemoresistant tumor cells to identify selective anti-cancer compounds. Several hits were identified and validated in dose response assays. One compound, C-6, was further characterized for its effect on cell cycle and cell death in cancer cells. Results Patient-derived cells were found to be more heterogeneous, with reduced proliferation rates and enhanced resistance to chemotherapy compared to established cell lines. A screen was subsequently developed that utilized both tumor and normal patient-derived cells. Several compounds were identified, which selectively targeted tumor cells, but not normal cells. Compound C-6 was found to inhibit proliferation and induce cell death in tumor cells via a caspase-independent mechanism. Conclusions Short-term culture of patient-derived cells retained more clinically relevant features of breast cancer compared to established cell lines. The low proliferation rate and chemoresistance make patient-derived cells an excellent tool in preclinical drug development.
Collapse
|
28
|
Dalmau E, Armengol-Alonso A, Muñoz M, Seguí-Palmer MÁ. Current status of hormone therapy in patients with hormone receptor positive (HR+) advanced breast cancer. Breast 2014; 23:710-20. [PMID: 25311296 DOI: 10.1016/j.breast.2014.09.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 09/09/2014] [Accepted: 09/12/2014] [Indexed: 01/14/2023] Open
Abstract
The natural history of HR+ breast cancer tends to be different from hormone receptor-negative disease in terms of time to recurrence, site of recurrence and overall aggressiveness of the disease. The developmental strategies of hormone therapy for the treatment of breast cancer have led to the classes of selective estrogen receptor modulators, selective estrogen receptor downregulators, and aromatase inhibitors. These therapeutic options have improved breast cancer outcomes in the metastatic setting, thereby delaying the need for chemotherapy. However, a subset of hormone receptor-positive breast cancers do not benefit from endocrine therapy (intrinsic resistance), and all HR+ metastatic breast cancers ultimately develop resistance to hormonal therapies (acquired resistance). Considering the multiple pathways involved in the HR network, targeting other components of pathologically activated intracellular signaling in breast cancer may prove to be a new direction in clinical research. This review focuses on current and emerging treatments for HR+ metastatic breast cancer.
Collapse
Affiliation(s)
- Elsa Dalmau
- Oncology Department, Parc Taulí Sabadell, Hospital Universitari, Parc Taulí, 1, 08208 Sabadell, Barcelona, Spain.
| | - Alejandra Armengol-Alonso
- Hematology and Oncology Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga #15, CP 14000 México City, Mexico.
| | - Montserrat Muñoz
- Oncology Department, Hospital Clinic i Provincial, IDIBAPS, C/Villarroel, 170, 08036 Barcelona, Spain.
| | - Miguel Ángel Seguí-Palmer
- Oncology Department, Parc Taulí Sabadell, Hospital Universitari, Parc Taulí, 1, 08208 Sabadell, Barcelona, Spain.
| |
Collapse
|
29
|
Oh K, Lee OY, Shon SY, Nam O, Ryu PM, Seo MW, Lee DS. A mutual activation loop between breast cancer cells and myeloid-derived suppressor cells facilitates spontaneous metastasis through IL-6 trans-signaling in a murine model. Breast Cancer Res 2014; 15:R79. [PMID: 24021059 PMCID: PMC3979084 DOI: 10.1186/bcr3473] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 05/20/2013] [Accepted: 09/10/2013] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Tumor cell interactions with the microenvironment, especially those of bone-marrow-derived myeloid cells, are important in various aspects of tumor metastasis. Myeloid-derived suppressor cells (MDSCs) have been suggested to constitute tumor-favoring microenvironments. In this study, we elucidated a novel mechanism by which the MDSCs can mediate spontaneous distant metastasis of breast cancer cells. METHODS Murine breast cancer cells, 4T1 and EMT6, were orthotopically grafted into the mammary fat pads of syngeneic BALB/c mice. CD11b(+)Gr-1(+) MDSCs in the spleen, liver, lung and primary tumor mass were analyzed. To evaluate the role of MDSCs in the distant metastasis, MDSCs were depleted or reconstituted in tumor-bearing mice. To evaluate whether MDSCs in the metastasizing tumor microenvironment affect breast cancer cell behavior, MDSCs and cancer cells were co-cultivated. To investigate the role of MDSCs in in vivo metastasis, we blocked the interactions between MDSCs and cancer cells. RESULTS Using a murine breast cancer cell model, we showed that murine breast cancer cells with high IL-6 expression recruited more MDSCs and that the metastasizing capacity of cancer cells paralleled MDSC recruitment in tumor-bearing mice. Metastasizing, but not non-metastasizing, tumor-derived factors induced MDSCs to increase IL-6 production and full activation of recruited MDSCs occurred in the primary tumor site and metastatic organ in the vicinity of metastasizing cancer cells, but not in lymphoid organs. In addition, tumor-expanded MDSCs expressed Adam-family proteases, which facilitated shedding of IL-6 receptor, thereby contributing to breast cancer cell invasiveness and distant metastasis through IL-6 trans-signaling. The critical role of IL-6 trans-signaling was confirmed in both the afferent and efferent pathways of metastasis. CONCLUSION In this study, we showed that metastasizing cancer cells induced higher MDSCs infiltration and prompted them to secret exaggerated IL-6 as well as soluble IL-6Ra, which, in turn, triggered a persistent increase of pSTAT3 in tumor cells. This potential tumor-MDSC axis involving IL-6 trans-signaling directly affected breast cancer cell aggressiveness, leading to spontaneous metastasis.
Collapse
|
30
|
Jørgensen CLT, Nielsen TO, Bjerre KD, Liu S, Wallden B, Balslev E, Nielsen DL, Ejlertsen B. PAM50 breast cancer intrinsic subtypes and effect of gemcitabine in advanced breast cancer patients. Acta Oncol 2014; 53:776-87. [PMID: 24359601 DOI: 10.3109/0284186x.2013.865076] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND In vitro studies suggest basal breast cancers are more sensitive to gemcitabine relative to other intrinsic subtypes. The main objective of this study was to use specimens from a randomized clinical trial to evaluate whether the basal-like subtype identifies patients with advanced breast cancer who benefit from gemcitabine plus docetaxel (GD) compared to single agent docetaxel (D). MATERIAL AND METHODS From patients randomly assigned to GD or D, RNA was isolated from archival formalin-fixed, paraffin-embedded primary breast tumor tissue and used for PAM50 intrinsic subtyping by NanoString nCounter. Statistical analyses were prespecified as a formal prospective-retrospective clinical trial correlative study. Using time to progression (TTP) as primary endpoint, overall survival (OS) and response rate as secondary endpoints, relationships between subtypes and outcome after chemotherapy were analyzed by the Kaplan-Meier method, and Cox proportional hazards regression models. Data analysis was performed independently by the Danish Breast Cancer Cooperative Group (DBCG) statistical core and all statistical tests were two-sided. RESULTS RNA from 270 patients was evaluable; 84 patients (31%) were classified as luminal A, 97 (36%) luminal B, 43 (16%) basal-like, and 46 (17%) as HER2-enriched. PAM50 intrinsic subtype was a significant independent prognostic factor for both TTP (p=0.014) and OS (p=0.0003). Response rate was not different by subtype, and PAM50 was not a predictor of TTP by treatment arm. PAM50 was however a highly significant predictor of OS following GD compared to D (pinteraction=0.0016). Patients with a basal-like subtype had a significant reduction in OS events [hazard ratio (HR)=0.29, 95% confidence interval (CI)=0.15-0.57; pinteraction=0.0006]. CONCLUSION A significantly improved and clinically important prolongation of survival was seen from the addition of gemcitabine to docetaxel in advanced basal-like breast cancer patients.
Collapse
|
31
|
Jørgensen CLT, Bjerre C, Ejlertsen B, Bjerre KD, Balslev E, Bartels A, Brünner N, Nielsen DL. TIMP-1 and responsiveness to gemcitabine in advanced breast cancer; results from a randomized phase III trial from the Danish breast cancer cooperative group. BMC Cancer 2014; 14:360. [PMID: 24884504 PMCID: PMC4091674 DOI: 10.1186/1471-2407-14-360] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 05/16/2014] [Indexed: 01/11/2023] Open
Abstract
Background Tissue inhibitor of metalloproteinases-1 (TIMP-1) has anti-apoptotic functions, which may protect TIMP-1 positive cancer cells from the effects of chemotherapy such as docetaxel and gemcitabine. The purpose of the present study was to evaluate TIMP-1 immunoreactivity as a prognostic and predictive marker in advanced breast cancer patients receiving docetaxel (D) or gemcitabine plus docetaxel (GD). Methods Patients with locally advanced or metastatic breast cancer who were assigned to D or GD by participation in a randomized phase III trial were included in the study. Assessment of TIMP-1 status was performed retrospectively on primary tumor whole-tissue sections by immunohistochemistry and tumor samples were considered positive if epithelial breast cancer cells were stained by the anti-TIMP-1 monoclonal antibody VT7. Time to progression (TTP) was the primary endpoint. Overall survival (OS) and response rate (RR) were secondary endpoints. Associations between TIMP-1 status and outcome after chemotherapy were analyzed by Kaplan-Meier estimates and Cox proportional hazards regression models. Results TIMP-1 status was available from 264 of 337 patients and 210 (80%) of the tumors were classified as cancer cell TIMP-1 positive. No significant difference for TTP between TIMP-1 positive versus TIMP-1 negative patients was observed in multivariate analysis, and RR did not differ according to TIMP-1 status. However, patients with TIMP-1 positive tumors had a significant reduction in OS events (hazard ratio = 0.71, 95% confidence interval (CI) = 0.52-0.98, P = 0.03). Additionally, a borderline significant interaction for OS was observed between TIMP-1 status and benefit from GD compared to D (Pinteraction = 0.06) such that median OS increased by nine months for TIMP-1 negative patients receiving GD. Conclusions TIMP-1 status was an independent prognostic factor for OS but not TTP in patients with advanced breast cancer receiving either D or GD. There was no statistically significant interaction between TIMP-1 status and treatment, but a trend towards an incremental OS from the addition of gemcitabine to docetaxel in patients with TIMP-1 negative tumors suggests further investigation.
Collapse
|
32
|
Gamucci T, Michelotti A, Pizzuti L, Mentuccia L, Landucci E, Sperduti I, Di Lauro L, Fabi A, Tonini G, Sini V, Salesi N, Ferrarini I, Vaccaro A, Pavese I, Veltri E, Moscetti L, Marchetti P, Vici P. Eribulin mesylate in pretreated breast cancer patients: a multicenter retrospective observational study. J Cancer 2014; 5:320-7. [PMID: 24723974 PMCID: PMC3982178 DOI: 10.7150/jca.8748] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/26/2014] [Indexed: 02/05/2023] Open
Abstract
Background: Eribulin was recently approved in patients progressing after being treated with anthracyclines and taxanes and after two or more chemotherapy lines for advanced disease. Objectives: This multicenter observational retrospective study was performed in order to evaluate activity and tolerability of eribulin in real-world patient population. Methods: 133 advanced breast cancer patients pretreated with ≥ 2 chemotherapy lines for metastatic disease were retrospectively enrolled in the observational trial in 11 italian cancer centres. Results: A median of 5 cycles of eribulin (range, 1-15) were administered. Twenty-eight partial responses were observed, for an overall response rate of 21.1% (95%CI,14.1-28.0). A stable disease was recorded in 57 patients (42.8%), and a clinical benefit (response or stable disease lasting ≥ six months) was observed in 51 patients (38.3%, 95%CI, 30.1-46.6). The subgroup analysis showed that a significant improvement in term of partial response and clinical benefit was achieved when eribulin was administered in HER-2 negative tumors (p=0.01 and p=0.004, respectively) and when it is given as third-line (p=0.09 and p=0.02, respectively). Toxicity was manageable; fatigue is the most common side effect observed, usually of low-grade, and clearly cumulative-dose related. Conclusions: In this retrospective, observational analysis eribulin confirmed its efficacy and manageable tolerability even in real-world population and in heavily pretreated patients.
Collapse
Affiliation(s)
- Teresa Gamucci
- 1. Medical Oncology Unit ASL Frosinone, Frosinone, Italy
| | - Andrea Michelotti
- 2. Oncology Unit I, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Laura Pizzuti
- 3. Division of Medical Oncology B, Regina Elena National Cancer Institute, Rome, Italy
| | | | | | - Isabella Sperduti
- 4. Biostatistics Unit, Regina Elena National Cancer Institute, Rome, Italy
| | - Luigi Di Lauro
- 3. Division of Medical Oncology B, Regina Elena National Cancer Institute, Rome, Italy
| | - Alessandra Fabi
- 5. Division of Medical Oncology A, Regina Elena National Cancer Institute, Rome, Italy
| | - Giuseppe Tonini
- 6. Department of Medical Oncology, University Campus Bio-Medico, Rome, Italy
| | - Valentina Sini
- 7. Oncology Unit, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Nello Salesi
- 8. Medical Oncology, S.M. Goretti Hospital, Latina, Italy
| | - Ilaria Ferrarini
- 2. Oncology Unit I, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Angela Vaccaro
- 1. Medical Oncology Unit ASL Frosinone, Frosinone, Italy
| | - Ida Pavese
- 9. Medical Oncology, San Pietro Hospital, Rome, Italy
| | - Enzo Veltri
- 8. Medical Oncology, S.M. Goretti Hospital, Latina, Italy
| | - Luca Moscetti
- 10. Division of Medical Oncology, Department of Oncology, Belcolle Hospital, ASL Viterbo, Viterbo, Italy
| | - Paolo Marchetti
- 7. Oncology Unit, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Patrizia Vici
- 3. Division of Medical Oncology B, Regina Elena National Cancer Institute, Rome, Italy
| |
Collapse
|
33
|
Ng CH, Kong SM, Tiong YL, Maah MJ, Sukram N, Ahmad M, Khoo ASB. Selective anticancer copper(ii)-mixed ligand complexes: targeting of ROS and proteasomes. Metallomics 2014; 6:892-906. [DOI: 10.1039/c3mt00276d] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The ternary copper(ii) complexes 1–4 exhibited anticancer selectivity, as evidenced by MTT assay, % apoptosis, cell cycle arrest, ROS induction and DNA DSBs. Proteasome of cancer cells are also inhibited.
Collapse
Affiliation(s)
- Chew Hee Ng
- Department of Pharmaceutical Chemistry
- School of Pharmacy
- International Medical University
- 57000 Kuala Lumpur, Malaysia
| | - Siew Ming Kong
- Faculty of Science
- Universiti Tunku Abdul Rahman
- 31900 Kampar, Malaysia
| | - Yee Lian Tiong
- School of Postgraduate Studies and Research
- School of Medicine
- International Medical University
- 57000 Kuala Lumpur, Malaysia
| | - Mohd Jamil Maah
- Chemistry Department
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Nurhazwani Sukram
- Molecular Pathology Unit
- Cancer Research Centre
- Institute for Medical Research
- , Malaysia
| | - Munirah Ahmad
- Molecular Pathology Unit
- Cancer Research Centre
- Institute for Medical Research
- , Malaysia
| | - Alan Soo Beng Khoo
- Molecular Pathology Unit
- Cancer Research Centre
- Institute for Medical Research
- , Malaysia
| |
Collapse
|
34
|
Rolfo C, Raez LE, Russo A, Reguart N, Campelo RG, Bronte G, Papadimitriou K, Silvestris F. Molecular target therapy for bone metastasis: starting a new era with denosumab, a RANKL inhibitor. Expert Opin Biol Ther 2013; 14:15-26. [PMID: 24161019 DOI: 10.1517/14712598.2013.843667] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION The skeleton is generally the primary, and sometimes the only, site of metastasis in patients with advanced solid tumors. Bone metastases are the most frequent cause of cancer-related pain and the origin of severe morbidity in patients. Among the treatment options available for the prevention of skeletal-related events (SREs) associated with bone metastasis, zoledronic acid, an antiresorptive treatment from the group of bisphosphonates, is currently the standard of care in this setting. AREAS COVERED Zoledronic acid, together with denosumab (a monoclonal antibody against the receptor activator of nuclear factor kappa B ligand), is the most frequent approach for the prevention of cancer-related events in skeleton. This paper reviews several trials evaluating the efficacy of denosumab in comparison with zoledronic acid in patients with solid osteotropic tumors. In this setting of skeleton-invading cancers, denosumab was demonstrated to be superior to zoledronic acid in preventing or delaying SREs. In comparison with zoledronic acid, denosumab significantly delayed the time to first SRE by 17%. EXPERT OPINION Current research on denosumab is addressed to prove the immunomodulator effect of this agent in humans. Other avenue of research is focused on its antitumor activity observed in some Phase III trials.
Collapse
Affiliation(s)
- Christian Rolfo
- Professor, Head of Phase I-Early Clinical Trials Unit, Antwerp University Hospital UZA, Oncology Department , Wilrijkstraat 10, 2650 Edegem , Belgium +32 3 821 36 46 ;
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Ibrahim T, Mercatali L, Amadori D. A new emergency in oncology: Bone metastases in breast cancer patients (Review). Oncol Lett 2013; 6:306-310. [PMID: 24137321 PMCID: PMC3789111 DOI: 10.3892/ol.2013.1372] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 05/17/2013] [Indexed: 01/23/2023] Open
Abstract
Breast cancer (BC) is the most common tumour in females and as a result, the management of such patients is a major public health issue. A high percentage of BC patients develop bone metastases (BMs), occasionally even several years following the initial diagnosis. BMs are responsible for high morbidity and a reduced quality of life with the onset of various clinical complications defined as skeletal-related events (SREs), including pathological fractures, spinal cord compression, hypercalcaemia, bone marrow infiltration and severe bone pain, requiring palliative radiotherapy. Such complications reduce functional independence and quality of life, decrease survival rates and increase healthcare costs. The current treatment for metastatic BC aims to achieve meaningful clinical responses, an improved quality of life, long-term remission, prolonged survival and in a small percentage of cases, a complete cure. The treatment of this malignancy has become progressively complex, including well-known antitumour agents or bone-targeted molecules aimed at preventing bone complications and improving patient quality of life and the treatment outcome of a multidisciplinary programme. The importance of a multi disciplinary approach in the management of BMs is also widely accepted. The major complication of BMs are SREs which are responsible for reducing prognoses and patient quality of life and are correlated with high rates of hospitalisation with the subsequent social and economic consequences. For these reasons, it is crucial to prevent where possible or to identify and treat SREs promptly in an attempt to mitigate the ever-increasing clinical and economic burden.
Collapse
Affiliation(s)
- Toni Ibrahim
- Osteoncology and Rare Tumors Center, IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola I-47014, Italy
| | | | | |
Collapse
|
36
|
Abstract
The treatment of metastasized urothelial cancer has been evolving in recent years. In particular, in the second-line setting after the failure of platinum-containing therapy, options are few and besides vinflunine, the recently approved standard in Europe, well-designed highly selective clinical trials may be possible alternatives for patients in this palliative situation. However, targeted therapy approaches have not achieved the same results in urothelial cancer as for instance in renal cell carcinoma. Many of the new targeted drugs have been investigated as single agents in phase II clinical trials without convincing oncologic outcome. This review aims to highlight the most relevant clinical studies examining targeted agents in the second-line setting of metastasized transitional carcinoma of the urothelium.
Collapse
|
37
|
|
38
|
Belmondo L, Montana M, Curti C, Crozet M, Rathelot P, Penot-Ragon C, Vanelle P. [Targeted based therapies in metastatic breast cancer: future evolution]. Therapie 2012; 67:491-503. [PMID: 23249575 DOI: 10.2515/therapie/2012068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Accepted: 07/31/2012] [Indexed: 11/20/2022]
Abstract
Research on molecular alteration process mechanisms leading to cancerogenesis permitted the elaboration of many targeted therapies. Some therapeutic classes appeared recently and are currently being tested, including HER-2 dimerization inhibitors. However, most of these therapies are mostly ineffective with monotherapy. Clinical trials are ongoing, testing their efficiency in association with other molecules of the therapeutic arsenal which is available in oncology. Nevertheless, breast cancer remains a pathology life-threatening, most of the time. Within this review will be introduced the most efficient of these targeted therapies, including their eventual association with other cytotoxic molecules.
Collapse
Affiliation(s)
- Laure Belmondo
- Service de la Pharmacie à Usage Intérieur, Hôpital Sainte Marguerite, Marseille, France.
| | | | | | | | | | | | | |
Collapse
|
39
|
Ayoub JPM, Verma S, Verma S. Advances in the management of metastatic breast cancer: options beyond first-line chemotherapy. ACTA ACUST UNITED AC 2012; 19:91-105. [PMID: 22514495 DOI: 10.3747/co.19.1024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This article provides an overview of recent advances in chemotherapy that may be used for the treatment of patients with locally advanced or metastatic breast cancer (MBC). Key phase ii and iii trial data for eribulin mesylate, ixabepilone, and nab-paclitaxel, published since 2006, are discussed on the basis of recency, depth, and quality.Eribulin mesylate is the first monotherapy to significantly increase overall survival in patients with pretreated MBC, but nab-paclitaxel offers a novel and safer mode of delivery in comparison with standard taxanes. By contrast, the use of ixabepilone will be limited for now, until the associated neurotoxicity can be better managed. Alongside a brief overview of the other major chemotherapies currently in use, we have aimed to provide a Canadian context for how these novel agents may be integrated into clinical practice.
Collapse
Affiliation(s)
- J P M Ayoub
- Hematology-Oncology Service, Centre Hospitalier de l'Université de Montréal, Montreal, QC
| | | | | |
Collapse
|
40
|
Target therapy in elderly breast cancer patients. Crit Rev Oncol Hematol 2012; 83:422-31. [PMID: 22257652 DOI: 10.1016/j.critrevonc.2011.12.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 11/15/2011] [Accepted: 12/22/2011] [Indexed: 02/07/2023] Open
Abstract
Substantial progress has been made in the management of breast cancer by targeting HER2 and VEGF pathways. Although the efficacy and safety of target therapy in breast cancer have been established, no specific phase III trial has addressed these issues in the elderly population and the only data available derive from subanalyses or retrospective series. The aim of this review is to summarize the available evidence in this special population and to encourage further well designed studies in elderly breast cancer patients.
Collapse
|