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Oshi M, Yamada A, Gandhi S, Wu R, Sasamoto M, Yamamoto S, Narui K, Ishikawa T, Takabe K, Endo I. Breast cancer in adolescents and young adults has a specific biology and poor patient outcome compared with older patients. ESMO Open 2024; 9:103737. [PMID: 39405895 PMCID: PMC11525141 DOI: 10.1016/j.esmoop.2024.103737] [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: 04/25/2024] [Revised: 08/28/2024] [Accepted: 09/02/2024] [Indexed: 11/03/2024] Open
Abstract
BACKGROUND We aimed to clarify the features of adolescents and young adults (AYA: younger than 40 years old) breast cancer (BC) compared with other age groups in estrogen receptor (ER)-positive/human epidermal growth factor receptor 2 (HER2)-negative BC, given the effects of age-related hormonal status. METHODS The cohorts analyzed were divided into AYA (15-39 years old), perimenopausal (40-54 years old), menopausal (55-64 years old), and old (65+ years old). Clinicopathological and biological features were analyzed using gene set variation analysis and xCell algorithm using transcriptome profiles from large public databases of ER-positive/HER2-negative BC (METABRIC; n = 1353, SCAN-B; n = 2381). RESULTS In the ER-positive/HER2-negative subtype, pathological lymph node positivity, and Nottingham grade 3 were higher among AYA (all P < 0.001). AYA patients had a trend toward worse disease-specific and overall survival, particularly compared with the perimenopausal group. Estrogen response late signaling decreased with age (all P ≤ 0.001 in both METABRIC and SCAN-B cohorts). AYA was associated with significantly higher BRCAness and DNA repair than the other groups (all P < 0.05 in both cohorts). AYA significantly enriched cell proliferation-related and procancerous gene sets [mTORC1, unfolded protein response, and phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) signaling] when compared with the others (all P < 0.03 in both cohorts). Interestingly, these features have also been observed in tumors <2 cm. Infiltration of CD8+, regulatory, T helper type 2 cells, and M1 macrophages was higher, while M2 macrophages were lower in AYA (all P < 0.03 in both cohorts). Finally, ER-positive/HER2-negative BC in AYA patients has different features of gene mutations, including AHNAK2, GATA3, HERC2, and TG, which were observed at a higher rate in AYA, and KMT2C, which was observed at a lower rate in AYA, compared with other age groups. CONCLUSIONS ER-positive/HER2-negative BC in AYA was highly proliferative with high immune cell infiltration compared with the other age groups.
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Affiliation(s)
- M Oshi
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan; Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, USA
| | - A Yamada
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - S Gandhi
- Department of Medical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, USA
| | - R Wu
- Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo
| | - M Sasamoto
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - S Yamamoto
- Department of Breast and Thyroid Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - K Narui
- Department of Breast and Thyroid Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - T Ishikawa
- Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo
| | - K Takabe
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan; Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, USA
| | - I Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Long D, Fang X, Yuan P, Cheng L, Li H, Qu L. Lidocaine promotes apoptosis in breast cancer cells by affecting VDAC1 expression. BMC Anesthesiol 2022; 22:273. [PMID: 36042412 PMCID: PMC9426218 DOI: 10.1186/s12871-022-01818-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 08/24/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To investigate the effect of lidocaine on the expression of voltage-dependent anion channel 1 (VDAC1) in breast invasive carcinoma (BRCA) and its impact on the apoptosis of breast cancer cells. METHODS We collected clinical data from patients with invasive breast cancer from 2010 to 2020 in the First affiliated hospital of Nanchang University, evaluated the prognostic value of VDAC1 gene expression in breast cancer, and detected the expression of VDAC1 protein in breast cancer tissues and paracancerous tissues by immunohistochemical staining of paraffin sections. Also, we cultured breast cancer cells (MCF-7) to observe the effect of lidocaine on the apoptosis of MCF-7 cells. RESULTS Analysis of clinical data and gene expression data of BRCA patients showed VDAC1 was a differentially expressed gene in BRCA, VDAC1 may be of great significance for the diagnosis and prognosis of BRCA patients. Administration of lidocaine 3 mM significantly decreased VDAC1 expression, the expression of protein Bcl-2 was significantly decreased (p < 0.05), and the expression of p53 increased significantly (p < 0.05). Lidocaine inhibited the proliferation of MCF-7 breast cancer cells, increased the percentage of G2 / M phase cells and apoptosis. CONCLUSION Lidocaine may inhibit the activity of breast cancer cells by inhibiting the expression of VDAC1, increasing the apoptosis in breast cancer cells.
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Affiliation(s)
- Dingde Long
- grid.412604.50000 0004 1758 4073Department of Anesthesiology, Medical Center of Anesthesiology and Pain, Jiangxi Province, the First Affiliated Hospital of Nanchang University, No. 17, Yong Wai Zheng Road, Donghu district, 330000 Nanchang, P. R. China
| | - Xingjun Fang
- grid.412604.50000 0004 1758 4073Department of Anesthesiology, Medical Center of Anesthesiology and Pain, Jiangxi Province, the First Affiliated Hospital of Nanchang University, No. 17, Yong Wai Zheng Road, Donghu district, 330000 Nanchang, P. R. China
| | - Peihua Yuan
- grid.412604.50000 0004 1758 4073Department of Anesthesiology, Medical Center of Anesthesiology and Pain, Jiangxi Province, the First Affiliated Hospital of Nanchang University, No. 17, Yong Wai Zheng Road, Donghu district, 330000 Nanchang, P. R. China
| | - Liqin Cheng
- grid.412604.50000 0004 1758 4073Department of Anesthesiology, Medical Center of Anesthesiology and Pain, Jiangxi Province, the First Affiliated Hospital of Nanchang University, No. 17, Yong Wai Zheng Road, Donghu district, 330000 Nanchang, P. R. China
| | - Hongtao Li
- grid.224260.00000 0004 0458 8737Department of Physiology and Biophysics, School of Medicine, Virginia Commonwealth University, Richmond, VA USA
| | - LiangChao Qu
- grid.412604.50000 0004 1758 4073Department of Anesthesiology, Medical Center of Anesthesiology and Pain, Jiangxi Province, the First Affiliated Hospital of Nanchang University, No. 17, Yong Wai Zheng Road, Donghu district, 330000 Nanchang, P. R. China
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Iyer P, Radhakrishnan V, Krishnamurthy A, Dhanushkodi M, V. S, Ananthi B, Selvaluxmy G. Real-World Experience of Treating Young Adult Patients with Breast Cancer from a Single Center in Southern India. South Asian J Cancer 2022; 11:105-111. [DOI: 10.1055/s-0041-1735481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Background Breast cancer in young adults is rare and accounts for 5 to 6% of all cancers in this age group. We conducted the present study to look at the demographic features, clinical presentation, and outcomes in this group of patients treated at our center.
Patients and Methods The study included breast cancer patients between the age of 15 and 30 years treated at our institute from January 2009 to December 2016. Data were analyzed retrospectively from case records. Event-free survival (EFS) and overall survival (OS) were calculated using the Kaplan–Meier method.
Results Young adult breast cancers were reported in 145 out of 6,000 patients (2.41%) diagnosed with breast cancer in the study period. The median age of the patients was 29 years (range: 21–30 years). Stage I, II, III, and IV was observed in 3.4, 33.7, 46.2, and 16.5% of patients, respectively. The median follow-up was 45 months (range: 1.7–128.1 months). The 5-year EFS and OS for stage I, II, III, and IV was 100, 74.5, 47.9, and 0% and 100, 90.8, 55.1, and 0%, respectively. On univariate analysis, stage of the disease and pregnancy-associated breast cancers were found to have a significant association with decreased EFS and OS (p < 0.001, p = 0.008 and p < 0.001, p = 0.001, respectively). On multivariate analysis, stage of disease and pregnancy-associated breast cancers remained significant predictors of EFS and OS.
Conclusion Breast cancers in young adults are rare but need to be diagnosed at an early stage to improve survival. Pregnancy-associated breast cancers need to be managed optimally without delay owing to their aggressive tumor biology.
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Affiliation(s)
- Priya Iyer
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
| | - Venkatraman Radhakrishnan
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
| | - Arvind Krishnamurthy
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
| | - Manikandan Dhanushkodi
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
| | - Sridevi V.
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
| | - Balasubramanian Ananthi
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
| | - Ganeshraja Selvaluxmy
- Departments of Radiation Oncology, Medical Oncology and Surgical Oncology, Cancer Institute (WIA, Chennai, Tamil Nadu, India
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Futamura M, Yoshida K. Current status of AYA-generation breast cancer: trends worldwide and in Japan. Int J Clin Oncol 2021; 27:16-24. [PMID: 34921319 DOI: 10.1007/s10147-021-02087-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/11/2021] [Indexed: 11/28/2022]
Abstract
Breast cancer (BC) is the most common cancer worldwide among women. In Japan, the incidence of BC gradually increased. The recent number of adolescent and young adult (AYA)-BC patients is approximately 4,000-5,000 every year, accounting for 5% of all BC cases. BC in young people has been attracting attention since Japan's third basic plan to promote cancer control programs incorporated cancer control measures for pediatric (age ≤ 14 years) and adolescent and young adult (AYA)-generation (age 15-39 years) cancers in 2018. Attention is needed to detect AYA-BC because of the presence of dense breasts. AYA-BC patients are clinically characterized by larger tumor size, more lymph node metastases, advanced stages, and a higher rate of aggressive phenotypes, such as triple-negative or HER2-positive subtypes, and are strongly associated with family history and genetic germline alterations, including hereditary breast and ovarian cancers. Given that AYA-BC patients show a poorer prognosis than older BC patients, they often require intensive therapies, including surgery, radiation, chemotherapy, and endocrine therapy. We must solve many survivorship-associated problems in AYA-BC patients, including fertility preservation, comorbidity after treatment, and long-term follow-up. Under these circumstances, national and local governments and various academic societies have started addressing these problems by formulating laws and guidelines, establishing medical systems, and offering financial support to conquer cancer and maintain a better quality of life. This review summarizes the current trends of AYA-BC worldwide and in Japan. Further Japan-specific data on AYA-BC are required to clarify its characteristics and improve prognosis and survivorship.
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Affiliation(s)
- Manabu Futamura
- Breast Surgery, Department of Surgery, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
| | - Kazuhiro Yoshida
- Gastroenterological Surgery, Department of Surgery, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan
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Urbina-Jara LK, Martinez-Ledesma E, Rojas-Martinez A, Rodriguez-Recio FR, Ortiz-Lopez R. DNA Repair Genes as Drug Candidates for Early Breast Cancer Onset in Latin America: A Systematic Review. Int J Mol Sci 2021; 22:13030. [PMID: 34884835 PMCID: PMC8657579 DOI: 10.3390/ijms222313030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 12/24/2022] Open
Abstract
The prevalence of breast cancer in young women (YWBC) has increased alarmingly. Significant efforts are being made to elucidate the biological mechanisms concerning the development, prognosis, and pathological response in early-onset breast cancer (BC) patients. Dysfunctional DNA repair proteins are implied in BC predisposition, progression, and therapy response, underscoring the need for further analyses on DNA repair genes. Public databases of large patient datasets such as METABRIC, TCGA, COSMIC, and cancer cell lines allow the identification of variants in DNA repair genes and possible precision drug candidates. This study aimed at identifying variants and drug candidates that may benefit Latin American (LA) YWBC. We analyzed pathogenic variants in 90 genes involved in DNA repair in public BC datasets from METABRIC, TCGA, COSMIC, CCLE, and COSMIC Cell Lines Project. Results showed that reported DNA repair germline variants in the LA dataset are underrepresented in large databases, in contrast to other populations. Additionally, only six gene repair variants in women under 50 years old from the study population were reported in BC cell lines. Therefore, there is a need for new approaches to study DNA repair variants reported in young women from LA.
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Affiliation(s)
| | | | | | | | - Rocio Ortiz-Lopez
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Mexico; (L.K.U.-J.); (E.M.-L.); (A.R.-M.); (F.R.R.-R.)
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Abo Al-Shiekh SS, Ibrahim MA, Alajerami YS. Breast Cancer Knowledge and Practice of Breast Self-Examination among Female University Students, Gaza. ScientificWorldJournal 2021; 2021:6640324. [PMID: 34007246 PMCID: PMC8100409 DOI: 10.1155/2021/6640324] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 04/03/2021] [Accepted: 04/09/2021] [Indexed: 01/22/2023] Open
Abstract
Breast cancer is the highest public detected cancer among female population in the majority of countries worldwide. Breast self-examination (BSE) is a useful screening tool to empower women and raise awareness about their breast tissues and help detect any breast abnormalities when they occur. This study aimed to assess the level of female university students' knowledge and practice of BSE. A self-administered questionnaire was used to assess the knowledge about breast cancer and related items, and an observation checklist was used to test practicing BSE using a breast simulator. Eighty-six students participated in the study, 58.1% studying nursing and 41.9% studying clinical nutrition in the third (40.7%) or the fourth level (59.3%). Of them, 24.4% had previous family history of breast cancer. The majority of the students (80.2%) had previous information about breast cancer acquired from different sources, university studies (57%), the Internet (45%), and social media (41%). Findings showed good scores (≥70%) regarding signs and symptoms and risk factors of breast cancer; however, low knowledge scores (<70%) were detected regarding general knowledge about breast cancer disease, methods of early detection and management, and applying steps of practicing BSE. Roughly all the students (96.5%) have heard about BSE, and 69.8% knew the time to do BSE; however, only 31.4% practice it regularly. Three barriers to practice were dominant among students who do not have a breast problem (39.7%), do not know how to do it (37.9%), and being busy 31%. On the other hand, breast cancer early detection purpose and the presence of family history of breast cancer were considered facilitators to regular practice BSE. A statistically significant relationship existed between knowledge about the steps of applying the BSE and regular practicing. A training program should be implemented to increase the level of awareness about BC and practicing BSE.
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Affiliation(s)
| | - Mohamed Awadelkarim Ibrahim
- Department of Public Health, Faculty of Applied Medical Sciences, ALBaha University, KSA, Al Bahah, Saudi Arabia
| | - Yasser S. Alajerami
- Department of Medical Imaging, Al-Azhar University, Gaza, State of Palestine
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7
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Suelmann BBM, van Dooijeweert C, van der Wall E, Linn S, van Diest PJ. Pregnancy-associated breast cancer: nationwide Dutch study confirms a discriminatory aggressive histopathologic profile. Breast Cancer Res Treat 2021; 186:699-704. [PMID: 33635448 PMCID: PMC8019425 DOI: 10.1007/s10549-021-06130-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 02/05/2021] [Indexed: 11/10/2022]
Abstract
Purpose Breast cancer is the most common type of malignancy in pregnant women, occurring approximately once in every 3000 pregnancies. Pregnancy-associated breast cancer (PABC) is commonly defined as breast cancer diagnosed during or within one year after pregnancy, and it accounts for up to 6.9% of all breast cancers in women younger than 45 years old. Whether these cancers arise before or during pregnancy, and whether they are stimulated by the high hormonal environment of pregnancy, is currently unknown. This study assesses the histopathological profile of PABC in a large Dutch population-based cohort. Methods We identified 744 patients with PABC (in this cohort defined as breast cancer diagnosed during or within 6 months after pregnancy) diagnosed between 1988 and 2019, in the nationwide Dutch Pathology Registry (PALGA). An age-matched PALGA cohort of unselected breast cancer patients (≤ 45 years), diagnosed between 2013 and 2016, was used as a control. Histopathologic features of both cohorts were compared. Results The median age of PABC patients was 34.3 years old (range 19–45 years) and most breast cancers were diagnosed during pregnancy (74.2%). As compared to age-matched controls, PABC patients had tumors of higher Bloom–Richardson grade (grade I: 1.5% vs. 12.4%, grade II: 16.9% vs. 31.3%, grade III: 80.3% vs. 39.5%, p < 0.0001). Furthermore, estrogen (ER)- and progesterone (PR)-receptor expression was less frequently reported positive (ER: 38.9% vs. 68.2% and PR: 33.9% vs. 59.0%, p < 0.0001), while a higher percentage of PABC tumors overexpressed HER2 (20.0% vs. 10.0%, p < 0.0001). The most observed intrinsic subtype in PABC was triple-negative breast cancer (38.3% vs. 22.0%, p < 0.0001), whereas hormone-driven cancers were significantly less diagnosed (37.9% vs. 67.3%, p < 0.0001). Conclusion This study, based on a large population-based cohort of 744 PABC Dutch patients, underlines the more aggressive histopathologic profile compared to age-matched breast cancer patients ≤ 45 years. Further in-depth genetic analysis will be performed to unravel the origin of this discriminating phenotype. It definitely calls for timely detection and optimal treatment of this small but delicate subgroup of breast cancer patients. Supplementary Information The online version of this article (10.1007/s10549-021-06130-w) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- B B M Suelmann
- Department of Medical Oncology, University Medical Center Utrecht, PO Box 85500, Utrecht, GA, 3508, The Netherlands.
| | - C van Dooijeweert
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - E van der Wall
- Department of Medical Oncology, University Medical Center Utrecht, PO Box 85500, Utrecht, GA, 3508, The Netherlands
| | - S Linn
- Department of Medical Oncology, Netherlands Cancer Institute (AVL-NKI), Amsterdam, The Netherlands
| | - P J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
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8
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Presentation and characteristics of breast cancer in young women under age 40. Breast Cancer Res Treat 2020; 186:209-217. [PMID: 33136248 DOI: 10.1007/s10549-020-06000-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Although uncommon, breast cancer is the leading cause of cancer death in young women. There are limited studies on the presentation and characteristics of breast cancer in women under age 40. METHODS This is a retrospective study investigating patient demographics, clinical presentations, imaging findings, and cancer characteristics of a cohort of 145 women under age 40 with breast cancer. RESULTS Our cohort had more aggressive cancer subtypes than reported in older women; 33.1% triple negative, 80% high Ki-67, and 21.3% with stage 3+ disease. Most were referred from primary care or obstetrician/gynecologist, though 5.5% initially presented from the emergency department and another 2.1% were incidental findings. 16.6% of patients presented while pregnant or breastfeeding. Most patients presented with breast related symptoms. Of the 9.1% of patients diagnosed through our high-risk screening program, 84.6% of the cancers were identified on mammography or simultaneously with mammography and MRI. Most breast cancers presented with typically worrisome imaging (82.6%), though several cancers presented with findings that were typically benign. CONCLUSIONS We recommend prompt breast imaging for young women presenting with breast-related symptoms or an incidental breast finding, as younger patients have more aggressive cancer subtypes and are of a higher grade at presentation compared to older women. We also recommend vigilance when distinguishing suspicious symptoms from pregnancy-related breast changes to minimize delays in diagnosis. Additionally, it is important to identify patients who qualify for high risk screening, since cancers in screening patients were found at a lower grade than those presenting with symptoms.
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Hironaka-Mitsuhashi A, Otsuka K, Gailhouste L, Sanchez Calle A, Kumazaki M, Yamamoto Y, Fujiwara Y, Ochiya T. MiR-1285-5p/TMEM194A axis affects cell proliferation in breast cancer. Cancer Sci 2020; 111:395-405. [PMID: 31854049 PMCID: PMC7004531 DOI: 10.1111/cas.14287] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 12/10/2019] [Accepted: 12/12/2019] [Indexed: 02/03/2023] Open
Abstract
The onset of breast cancer among young patients is a major issue in cancer etiology. Our previous study has shown that poor prognosis in young women with breast cancer is associated with lower expression of the microRNA miR‐1285‐5p. In this study, we showed that the expression of miR‐1285‐5p is lower in tumor tissues than in normal tissues. Accumulating evidence suggests that miR‐1285‐5p plays critical roles in various types of cancers. However, the functional role of miR‐1285‐5p in breast cancer remains to be elucidated. Here, we showed the tumor‐suppressive role of miR‐1285‐5p and detailed its mechanism of action in breast cancer. Overexpression of miR‐1285‐5p significantly inhibited cell proliferation in breast cancer cells regardless of the tumor subtype. Among the target genes of miR‐1285‐5p, we found that transmembrane protein 194A (TMEM194A) was directly regulated by miR‐1285‐5p. Notably, separation of centrosomes from the nuclear envelope was observed upon knockdown of TMEM194A or overexpression of miR‐1285‐5p. In conclusion, our findings show that miR‐1285‐5p is a tumor suppressor via TMEM194A inhibition in breast cancer.
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Affiliation(s)
- Ai Hironaka-Mitsuhashi
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Kurataka Otsuka
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,R&D Division, Kewpie Corporation Sengawa Kewport, Tokyo, Japan
| | - Luc Gailhouste
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Liver Cancer Prevention Research Unit, RIKEN Cluster for Pioneering Research, Wako, Japan
| | - Anna Sanchez Calle
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Minami Kumazaki
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Yusuke Yamamoto
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Yasuhiro Fujiwara
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
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10
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Abdel-Razeq H, Almasri H, Abdel Rahman F, Abdulelah H, Abu Nasser M, Salam M, Al-Dairi A, Natour O, Rimawi D. Clinicopathological Characteristics And Treatment Outcomes Of Breast Cancer Among Adolescents And Young Adults In A Developing Country. Cancer Manag Res 2019; 11:9891-9897. [PMID: 31819626 PMCID: PMC6878996 DOI: 10.2147/cmar.s229337] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 10/18/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose Compared to Western societies, breast cancer diagnosis in our region is usually made at a younger age and at a more advanced stage. Breast cancer in younger patients tends to be more aggressive, and may result in a higher likelihood of long-term treatment-related toxicity and unique psychosocial problems. This study highlights the clinicopathological features and treatment outcomes in this age-group in a developing country like ours. Methods Consecutive patients aged 40 years or younger with a pathologically confirmed diagnosis of breast cancer treated and followed up at our institution were included. Medical records and hospital databases were searched for patients' characteristics and treatment outcomes. Results A total of 417 patients were enrolled. Median age at diagnosis was 35 (21-40) years. On presentation, 63 (15.1%) patients had metastatic disease, 50 (79.4%) with visceral metastasis. Patients with nonmetastatic disease had poor pathological features, including node-positivity (66.9%), grade III (51.4%), lymphovascular invasion (48.6%) and positive HER2 (31.5%). Breast-conserving surgery was performed on 32.9%, and only 36.5% of women had breast-reconstruction surgery. At a median follow-up of 59 months, 5-year overall survival for the whole group was 72%: 84% for nonmetastatic and 13% for those with metastatic disease. On Cox regression, nodal metastasis (adjusted HR 3.46, 95% CI 1.48-8.10; p=0.004) and grade III disease (HR 1.97, 95% CI 1.14-3.39; p=0.015) were associated with poor outcome. Conclusion Adolescents and young Jordanian adults with breast cancer present with more advanced-stage disease and more aggressive pathological features that reflect poorly on treatment outcomes.
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Affiliation(s)
- Hikmat Abdel-Razeq
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan.,School of Medicine, University of Jordan, Amman, Jordan
| | - Hanan Almasri
- Department of Radiation Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Fadwa Abdel Rahman
- Department of Radiation Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Hazem Abdulelah
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Mahmoud Abu Nasser
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Mourad Salam
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Ammer Al-Dairi
- Department of Radiation Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Osama Natour
- Department of Surgery, King Hussein Cancer Center, Amman, Jordan
| | - Dalia Rimawi
- Office of Scientific Affairs and Research, King Hussein Cancer Center, Amman, Jordan
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