1
|
Wrzeszcz K, Kwiatkowska K, Rhone P, Formanowicz D, Kruszewski S, Ruszkowska-Ciastek B. Traditional Clinicopathological Biomarkers Still Determine Disease-Free and Overall Survival in Invasive Breast Cancer Patients: A Pilot Study. J Clin Med 2024; 13:2021. [PMID: 38610786 PMCID: PMC11012512 DOI: 10.3390/jcm13072021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/20/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Background: Molecular classification, tumor diameter, Ki67 expression, and brachytherapy administration still act as the most potent potential predictors of breast cancer recurrence and overall survival. Methods: Over the period of 23 months, we included in the study 92 invasive breast cancer (IBrC) patients initially diagnosed at the Clinical Ward of Breast Cancer and Reconstructive Surgery, Oncology Center in Bydgoszcz, Poland. The probability of disease-free survival (DFS) and overall survival (OS) in relation to potential prognostic factors for the patients were determined using a Kaplan-Meier analysis, and univariate and multivariate Cox regression analyses evaluated the predictive factors of IBrC patients. The investigation of the potential prognostic model's accuracy was analyzed using the ROC curve. Results: Patients with tumor size < 2 cm, Ki67 expression < 20%, luminal-A molecular subtype, and extra-dose brachytherapy boost administration displayed the most favorable prognosis according to breast cancer disease-free survival and overall survival. The estimated 5 year probability of DFS and OS rates in women with tumor diameter < 2 cm were 89% and 90%, respectively. In tumor diameter > 2 cm, the estimated 5 year probability of DFS was 73% and OS was 76%. Interestingly, the tumor diameter of 1.6 cm with a specificity of 60.5% and a sensitivity of 75% occurred as the best threshold point to differentiate patients with cancer recurrence from those without cancer progression. Conclusions: Our study provides essential information on the clinicopathological profile and future outcomes of early stage IBrC patients. Furthermore, the tumor diameter cut-off value of 1.6 cm discriminating between disease recurrence and those without disease progression patients represents an innovative direction for further research.
Collapse
Affiliation(s)
- Katarzyna Wrzeszcz
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-094 Bydgoszcz, Poland;
| | - Katarzyna Kwiatkowska
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-094 Bydgoszcz, Poland;
| | - Piotr Rhone
- Clinical Ward of Breast Cancer and Reconstructive Surgery, Oncology Centre Prof. F. Łukaszczyk Memorial Hospital, 85-796 Bydgoszcz, Poland;
| | - Dorota Formanowicz
- Poznan University of Medical Sciences, Department of Medical Chemistry and Laboratory Medicine, 60-806 Poznan, Poland;
| | - Stefan Kruszewski
- Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, 85-067 Bydgoszcz, Poland;
| | - Barbara Ruszkowska-Ciastek
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-094 Bydgoszcz, Poland;
| |
Collapse
|
2
|
Dosh ZN, Muslim LM, Hasan MMSM, Al Janabi A. CORRELATION BETWEEN PRIMARY TUMOR SIZES WITH PROGNOSTIC MARKERS IN BREAST CARCINOMA IN IRAQI WOMEN: IMMUNOHISTOCHEMICAL STUDY. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:2771-2778. [PMID: 36591767 DOI: 10.36740/wlek202211210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE The aim: The study aimed assessment of immunohistochemical expression of ER, PR, Ki-67 and HER2 in breast carcinoma, studied the relation between size of primary tumor and these markers and distribution of molecular subtypes between both study groups. PATIENTS AND METHODS Materials and methods: The study was implemented immunohistochemistry laboratories of Al-Sadder Teaching Medical City in Al Najaf during the period from September 2020-september2021, forty four women with breast carcinoma who undergone modified radical mastectomy were involved in this study, aged between 29 -81 years, mean age being 47.3 yr. we divided study group into two categories; depending on tumor size, with cutoff point of 2 cm. Envision technique applied for evaluation of expression of ER, PR, Ki-67 and HER2. RESULTS Results: Among all patients, ER expressed in 70.45%, PR in 68.18%, HER2/neu in 18.18%, High ki-67 index in 52.27%. CONCLUSION Conclusions: Molecular subtype luminal A tend to occur in smaller tumor size compared to basal subtype which tend to occur in larger size of tumors. Breast carcinoma tumor size showed no significant correlation regarding histological grade, immunohistochemical expression of ER, PR, HER2, and Ki-67 labeling index.
Collapse
Affiliation(s)
- Zainab Nassir Dosh
- DEPARTMENT OF PATHOLOGY AND FORENSIC MEDICINE, FACULTY OF MEDICINE, UNIVERSITY OF KUFA, NAJAF, IRAQ
| | | | | | - Asaad Al Janabi
- DEPARTMENT OF PATHOLOGY AND FORENSIC MEDICINE, FACULTY OF MEDICINE, UNIVERSITY OF KUFA, NAJAF, IRAQ
| |
Collapse
|
3
|
Zhao F, Cai C, Liu M, Xiao J. Identification of the lymph node metastasis-related automated breast volume scanning features for predicting axillary lymph node tumor burden of invasive breast cancer via a clinical prediction model. Front Endocrinol (Lausanne) 2022; 13:881761. [PMID: 35992122 PMCID: PMC9388849 DOI: 10.3389/fendo.2022.881761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Breast cancer has become the malignant tumor with the highest incidence in women. Axillary lymph node dissection (ALND) is an effective method of maintaining regional control; however, it is associated with a significant risk of complications. Meanwhile, whether the patients need ALND or not is according to sentinel lymph node biopsy (SLNB). However, the false-negative results of SLNB had been reported. Automated breast volume scanning (ABVS) is a routine examination in breast cancer. A real-world cohort consisting of 245 breast cancer patients who underwent ABVS examination were enrolled, including 251 tumor lesions. The ABVS manifestations were analyzed with the SLNB results, and the ALND results for selecting the lymph node metastasis were related to ABVS features. Finally, a nomogram was used to construct a breast cancer axillary lymph node tumor burden prediction model. Breast cancer patients with a molecular subtype of luminal B type, a maximum lesion diameter of ≥5 cm, tumor invasion of the Cooper's ligament, and tumor invasion of the nipple had heavy lymph node tumor burden. Molecular classification, tumor size, and Cooper's ligament status were used to construct a clinical prediction model of axillary lymph node tumor burden. The consistency indexes (or AUC) of the training cohort and the validation cohort were 0.743 and 0.711, respectively, which was close to SLNB (0.768). The best cutoff value of the ABVS nomogram was 81.146 points. After combination with ABVS features and SLNB, the AUC of the prediction model was 0.889, and the best cutoff value was 178.965 points. The calibration curve showed that the constructed nomogram clinical prediction model and the real results were highly consistent. The clinical prediction model constructed using molecular classification, tumor size, and Cooper's ligament status can effectively predict the probability of heavy axillary lymph node tumor burden, which can be the significant supplement to the SLNB. Therefore, this model may be used for individual decision-making in the diagnosis and treatments of breast cancer.
Collapse
Affiliation(s)
- Feng Zhao
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Ultrasound, Third Xiangya Hospital, Central South University, Changsha, China
| | - Changjing Cai
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Menghan Liu
- Department of Ultrasound, Third Xiangya Hospital, Central South University, Changsha, China
| | - Jidong Xiao
- Department of Ultrasound, Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Jidong Xiao,
| |
Collapse
|
4
|
PI3K/AKT Signaling in Breast Cancer Molecular Subtyping and Lymph Node Involvement. DISEASE MARKERS 2019; 2019:7832376. [PMID: 31781306 PMCID: PMC6875411 DOI: 10.1155/2019/7832376] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 07/25/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022]
Abstract
Lymph node metastatic involvement persists to be among the most important predictors of recurrence and survival in breast carcinoma (BC). This study is aimed at investigating possible gene expression differences in primary BC between patients with or without lymph node involvement at the time of diagnosis. In a retrospective study, we investigated the potential prognostic role of 9 candidate biomarkers at the mRNA level in a cohort of 305 breast cancer patients, 151 lymph node-negative (LN-) and 154 lymph node-positive (LN+) individuals. The analyzed genes belonged to the RAS pathway (RAF1, ERBB2, PIK3CB, AKT1, AKT2, and AKT3), RB pathway (RB1 and CDK2), and cellular differentiation (KRT8). Their expression profiles were investigated by RT-qPCR and were correlated to immunohistochemically based molecular subtypes and BC clinical and pathological features. The differential expression of several genes in the primary tumor tissue was related to the LN involvement. Some of those genes, including PIK3CB, RB1, and AKT3, were more expressed in LN- BC patients, while some others, notably ERBB2 and AKT1, in LN+ ones. Among the candidate biomarkers, the expression levels of AKT isoforms influenced also patients' survival rates. In detail, higher expression levels of AKT1 and AKT2 negatively influenced overall patients' survival, and in particular, AKT2 expression levels defined a group of luminal B BC patients with shorter cancer-specific survival. On the contrary, longer cancer-specific survival was recorded in luminal A BC patients with higher expression levels of AKT3. That finding was also confirmed by Cox multivariate analysis. The same AKT3 resulted to be a possible candidate predictive biomarker for Tamoxifen response. In conclusion, our study highlighted the complex regulation of the PI3K/AKT pathway in BC and its differences in BC patients with and without lymph node involvement.
Collapse
|
5
|
Bonin S, Parascandolo A, Aversa C, Barbazza R, Tsuchida N, Castellone MD, Stanta G, Vecchio G. Reduced expression of α-L-Fucosidase-1 (FUCA-1) predicts recurrence and shorter cancer specific survival in luminal B LN+ breast cancer patients. Oncotarget 2018; 9:15228-15238. [PMID: 29632639 PMCID: PMC5880599 DOI: 10.18632/oncotarget.24445] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 02/01/2018] [Indexed: 01/11/2023] Open
Abstract
Background The lysosomal enzyme α-L-Fucosidase-1 (FUCA-1) catalyzes the hydrolytic cleavage of terminal fucose residues. FUCA-1 gene is down-regulated in highly aggressive and metastatic human tumors as its inactivation perturbs the fucosylation of proteins involved in cell adhesion, migration and metastases. Results Negativity to FUCA-1 was significantly related to the development of later recurrences in breast cancer patients with lymph node involvement at diagnosis. Cancer specific survival of luminal B LN+ patients was influenced by FUCA-1 expression as luminal B LN+ patients with positive expression had a longer cancer specific survival. FUCA-1 mRNA expression was inversely related to cancer stage and lymph node involvement. WB and qPCR analysis of FUCA-1 expression in breast cancer-derived cell lines confirmed an inverse relationship with tumor aggressiveness. Conclusions This study shows that, within LN+ breast cancer patients, FUCA-1 is able to identify a sub-set of non recurrent patients characterized by the positive expression of FUCA-1 and that, within luminal B LN+ patients, the expression of FUCA-1 predicts longer cancer specific survival. Methods We have analyzed FUCA-1 in 305 breast cancer patients by Immunohistochemistry (IHC), and by qPCR in breast cancer patients and in breast cancer cell lines.
Collapse
Affiliation(s)
- Serena Bonin
- Dipartimento di Scienze Mediche, Università di Trieste-Cattinara, Trieste, Italy
| | | | - Cinzia Aversa
- Dipartimento di Scienze Mediche, Università di Trieste-Cattinara, Trieste, Italy
| | - Renzo Barbazza
- Dipartimento di Scienze Mediche, Università di Trieste-Cattinara, Trieste, Italy
| | - Nobuo Tsuchida
- Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Giorgio Stanta
- Dipartimento di Scienze Mediche, Università di Trieste-Cattinara, Trieste, Italy
| | - Giancarlo Vecchio
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy.,Istituto Superiore di Oncologia, Naples, Italy.,Istituto Superiore di Oncologia, Genoa, Italy
| |
Collapse
|
6
|
Cen D, Xu L, Li N, Chen Z, Wang L, Zhou S, Xu B, Liu CL, Liu Z, Luo T. BI-RADS 3-5 microcalcifications can preoperatively predict breast cancer HER2 and Luminal a molecular subtype. Oncotarget 2017; 8:13855-13862. [PMID: 28099938 PMCID: PMC5355144 DOI: 10.18632/oncotarget.14655] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 01/07/2017] [Indexed: 12/31/2022] Open
Abstract
Purpose To investigate associations between breast cancer molecular subtype and the patterns of mammographically detected calcifications. Results Identified were 93 (19.1%) Luminal A, 242 (49.9%) Luminal B, 108 (22.2%) HER2 and 42 (8.7%) basal subtypes. In univariate analysis, the clinicopathological parameters and BI-RADS 3–5 microcalcifications, which consisted 9 selected features was significantly associated with breast cancer molecular subtype (all P < 0.05). Among subtypes, multivariate analysis showed that calcification >2 cm in range (OR: 1.878, 95% CI: 1.150 to 3.067) and calcification > 0.5 mm in diameter (OR:2.206, 95% CI: 1.235 to 3.323) was independently predictive of HER2 subtype. The model showed good discrimination for predicting HER2 subtype, with a C-index of 0.704. In addition, multivariate analysis showed that calcification morphology (amorphour or coarse heterogenous calcifications OR: 2.847, 95% CI: 1.526 to 5.312) was independently predictive of Luminal A subtype. The model showed good discrimination for predicting Luminal A subtype, with a C-index of 0.74. And we demonstrated that amorphour or coarse heterogenous calcifications were associated with a higher incidence of Luminal A subtype than pleomorphic or fine linear or branching calcifications. There was no significant difference between breast cancer subtypes (Luminal B vs. other; Basal vs. other) and the patterns of mammographically detected calcifications. Materials and Methods Mammographic images of 485 female patients were included. The correlation between mammographic imaging features and breast cancer subtype was analyzed using Chi-square test, univariate and binary logistic regression analysis. Conclusions This study shows that BI-RADS 3–5 microcalcifications can be conveniently used to facilitate the preoperative prediction of HER2 and Luminal A molecular subtype in patients with infiltrating ductal carcinoma.
Collapse
Affiliation(s)
- DongZhi Cen
- Department of Radiation Oncology and Department of Nuclear Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong Province, People's Republic of China
| | - Li Xu
- Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong Province 510120, P.R. China
| | - Ningna Li
- Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong Province 510120, P.R. China
| | - Zhiguang Chen
- Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong Province 510120, P.R. China
| | - Lu Wang
- Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong Province 510120, P.R. China
| | - Shuqin Zhou
- Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong Province 510120, P.R. China
| | - Biao Xu
- Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong Province 510120, P.R. China
| | - Chun Ling Liu
- Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province 510080, People's Republic of China
| | - Zaiyi Liu
- Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province 510080, People's Republic of China
| | - Tingting Luo
- Department of Ultrasound, The Third People's Hospital of Shenzhen, Guangdong Shenzhen 518112, China
| |
Collapse
|
7
|
Zhang X, Song W, Zhou Y, Mao F, Lin Y, Guan J, Sun Q. Expression and function of MutT homolog 1 in distinct subtypes of breast cancer. Oncol Lett 2017; 13:2161-2168. [PMID: 28454376 PMCID: PMC5403462 DOI: 10.3892/ol.2017.5726] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 12/09/2016] [Indexed: 12/15/2022] Open
Abstract
Human MutT homolog 1 (MTH1) detoxifies the oxidized DNA precursor 8-oxo-2′-deoxyguanosine-5′-triphosphate and serves a tumor suppressive role in distinct types of cancer. In the present study, the expression of MTH1 was examined in various subtypes of breast cancer, and the effect of its suppression on breast cancer growth was characterized in vitro and in vivo. MTH1 mRNA and protein levels were assessed using the reverse transcription-quantitative polymerase chain reaction and immunohistochemistry. The effect of MTH1 expression on the proliferation of breast cancer cells was investigated in vitro using Cell Counting Kit-8 and colony formation assays, and in vivo using breast cancer cell line xenografts in mice. The toxicity of the MTH1 inhibitor TH588 was investigated in nude mice. A marked increase in MTH1 protein and mRNA levels was demonstrated in breast cancer tissues compared with the non-cancerous control. However, no apparent differences in MTH1 expression were observed between distinct molecular subtypes of breast cancer. MTH1 overexpression was demonstrated to be independent of patient age, tumor size and lymph node metastasis. Inhibition of MTH1 decreased cancer cell viability and the clonogenic potential of cancer cells in a dose-dependent manner. These results were confirmed by decreased in vivo proliferation of MCF7, MDA-MB-231 and MDA-MB-453 cancer cell lines, representing distinct subtypes of breast cancer. Although inhibition of MTH1 activity decreased xenograft growth in mice, no major adverse effects of TH588 were detected on the basis of blood biochemistry, and liver and kidney function. The results of the present study suggested that MTH1 is overexpressed in the majority of breast cancers, independent of the molecular identity and clinicopathological features of the tumor, including patient age, tumor size and lymph node metastasis. Inhibition of MTH1 activity suppressed the growth of three subtypes of breast cancer, including luminal, basal-like and human epidermal growth factor receptor 2-positive, in vitro and in vivo. Treatment with the MTH1 inhibitor appears to be safe; however, further studies are required prior to the clinical use of MTH1 inhibitors.
Collapse
Affiliation(s)
- Xiaohui Zhang
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| | - Wei Song
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| | - Yidong Zhou
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| | - Feng Mao
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| | - Yan Lin
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| | - Jinghong Guan
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| | - Qiang Sun
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, P.R. China
| |
Collapse
|
8
|
Bonin S, Pracella D, Barbazza R, Sulfaro S, Stanta G. In stage II/III lymph node-positive breast cancer patients less than 55 years of age, keratin 8 expression in lymph node metastases but not in the primary tumour is an indicator of better survival. Virchows Arch 2015; 466:571-80. [PMID: 25724181 DOI: 10.1007/s00428-015-1748-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 01/20/2015] [Accepted: 02/19/2015] [Indexed: 12/31/2022]
Abstract
Axillary lymph node status is one of the most important prognostic variables for breast cancer (BC). To investigate and understand the clinical, histopathological and biological factors that affect prognosis in node-positive young breast cancer patients, we compared the phenotype of 100 primary tumours with their corresponding loco-regional lymph node (LN) metastases using conventional immunohistochemistry (IHC) markers currently in use for molecular classification of breast cancer. By comparing the expression of ER, PR, HER-2, Ki67, K8, K5/6 and vimentin, we found that expression of HER-2, Ki67, K8 and vimentin is frequently lost in lymph node metastases. Between the primary tumour and corresponding lymph node metastases, expression of keratins K8 and K5/6 significantly changed. Expression of K8 in lymph node metastases, but not in primary tumours, segregates patients in two sub-groups with different outcomes. Survival of patients with K8-positive LN metastases at 5 years in comparison with patients with K8-negative LN metastases was 75 vs 48 %, at 10 years 62 vs 22 % and at 20 years 53 vs 14 % (p < 0.001). K8 immunostaining of tissue from the lymph node metastasis allows defining a sub-group of lymph node-positive BC patients with a highly unfavourable outcome, for whom therapeutic options might have to be reconsidered.
Collapse
Affiliation(s)
- Serena Bonin
- Department of Medical Sciences, University of Trieste, Cattinara Hospital, Strada di Fiume 447, Trieste, Italy
| | | | | | | | | |
Collapse
|
9
|
Mao Y, Zhang Y, Qu Q, Zhao M, Lou Y, Liu J, huang O, Chen X, Wu J, Shen K. Cancer-associated fibroblasts induce trastuzumab resistance in HER2 positive breast cancer cells. MOLECULAR BIOSYSTEMS 2015; 11:1029-40. [PMID: 25648538 DOI: 10.1039/c4mb00710g] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CAFs isolated from HER2+ patients secreted higher levels of IL6 which expanded cancer stem cells and activated multiple pathways, then induced trastuzumab resistance in HER2 positive breast cancer cells.
Collapse
|