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Domínguez F, Maycotte P, Acosta-Casique A, Rodríguez-Rodríguez S, Moreno DA, Ferreres F, Flores-Alonso JC, Delgado-López MG, Pérez-Santos M, Anaya-Ruiz M. Bursera copallifera Extracts Have Cytotoxic and Migration-Inhibitory Effects in Breast Cancer Cell Lines. Integr Cancer Ther 2018; 17:654-664. [PMID: 29652200 PMCID: PMC6142086 DOI: 10.1177/1534735418766416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/09/2018] [Accepted: 02/12/2018] [Indexed: 11/16/2022] Open
Abstract
Plants from the Bursera genus are widely distributed in the tropical dry forests of Mexico. In traditional medicine, extracts from different species of Bursera have been used for a wide range of biological activities, including the treatment of cancer-related symptoms. Compounds present in the Bursera genus include lignans, flavonoids, steroids, short-chain aliphatic alkanes, acetates, alcohols, ketones, and terpenoids. In some instances, secondary metabolites of these classes of compounds may induce cytotoxicity, and therefore we sought to investigate the effects of B. copallifera leaf extracts in breast cancer cell lines to evaluate their potential therapeutic value for the treatment of breast cancer, one of the most prevalent types of cancer in women worldwide. Two B. copallifera leaf extracts exerted cytotoxic effects on both the MCF7 and MDA-MB-231 breast cancer cell line models. The cytotoxic effect was more evident in the MDA-MB-231 triple negative cell line inhibiting also the migration of these cells. We identified hydroxycinnamic acid and flavonol derivatives as major phenolic components of the extracts. Our results strongly suggest a potential use of the Bursera leaf extracts rich in phenolic compounds, their individual phenolic compounds, or their combinations for the treatment of breast cancer.
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Affiliation(s)
| | - Paola Maycotte
- Instituto Mexicano del Seguro Social,
Atlixco, Puebla, Mexico
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Rivera-Franco MM, Leon-Rodriguez E. Delays in Breast Cancer Detection and Treatment in Developing Countries. BREAST CANCER-BASIC AND CLINICAL RESEARCH 2018; 12:1178223417752677. [PMID: 29434475 PMCID: PMC5802601 DOI: 10.1177/1178223417752677] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/18/2017] [Indexed: 01/07/2023]
Abstract
Breast cancer is the most common cancer in women in both developed and developing countries and the second most common cancer in the world. Developing countries are increasingly adopting a Western lifestyle, such as changes in diet and delayed first childbirth, lower parity, and shorter periods of breastfeeding, which are important determinants of a higher incidence of breast cancer among those regions. Low- and middle-income countries (LMICs) represent most of the countries with the highest mortality rates, ranging from 40% to 60%. Furthermore, developing countries account for scarce survival data, and the few data available coincide with the observed incidence and mortality differences. Five-year survival rates for breast cancer are much worse for LMICs countries such as Brazil, India, and Algeria in comparison with the United States and Sweden. Paucity of early detection programs explain these poor survival rates, which results in a high proportion of women presenting with late-stage disease, along with lack of adequate diagnosis and treatment facilities. Emphasis is urgently needed on health education, to promote early diagnosis of breast cancer, highlighting the importance of creating more public facilities that provide treatment, which are key components for the improvement in breast cancer care in developing countries.
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Affiliation(s)
- Monica M Rivera-Franco
- Department of Hematology and Oncology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico
| | - Eucario Leon-Rodriguez
- Department of Hematology and Oncology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico
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Alternative Splicing in Breast Cancer and the Potential Development of Therapeutic Tools. Genes (Basel) 2017; 8:genes8100217. [PMID: 28981467 PMCID: PMC5664086 DOI: 10.3390/genes8100217] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/22/2017] [Accepted: 08/22/2017] [Indexed: 12/19/2022] Open
Abstract
Alternative splicing is a key molecular mechanism now considered as a hallmark of cancer that has been associated with the expression of distinct isoforms during the onset and progression of the disease. The leading cause of cancer-related deaths in women worldwide is breast cancer, and even when the role of alternative splicing in this type of cancer has been established, the function of this mechanism in breast cancer biology is not completely decoded. In order to gain a comprehensive view of the role of alternative splicing in breast cancer biology and development, we summarize here recent findings regarding alternative splicing events that have been well documented for breast cancer evolution, considering its prognostic and therapeutic value. Moreover, we analyze how the response to endocrine and chemical therapies could be affected due to alternative splicing and differential expression of variant isoforms. With all this knowledge, it becomes clear that targeting alternative splicing represents an innovative approach for breast cancer therapeutics and the information derived from current studies could guide clinical decisions with a direct impact in the clinical advances for breast cancer patients nowadays.
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Carioli G, La Vecchia C, Bertuccio P, Rodriguez T, Levi F, Boffetta P, Negri E, Malvezzi M. Cancer mortality predictions for 2017 in Latin America. Ann Oncol 2017; 28:2286-2297. [DOI: 10.1093/annonc/mdx301] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Lara-Padilla E, Miliar-Garcia A, Gomez-Lopez M, Romero-Morelos P, Bazan-Mendez C, Alfaro-Rodriguez A, Anaya-Ruiz M, Callender K, Carlos A, Bandala C. Neural Transdifferentiation: MAPTau Gene Expression in Breast Cancer Cells. Asian Pac J Cancer Prev 2016; 17:1967-71. [PMID: 27221882 DOI: 10.7314/apjcp.2016.17.4.1967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In tumor cells, aberrant differentiation programs have been described. Several neuronal proteins have been found associated with morphological neuronal-glial changes in breast cancer (BCa). These neuronal proteins have been related to mechanisms that are involved in carcinogenesis; however, this regulation is not well understood. Microtubule-associated protein-tau (MAP-Tau) has been describing in BCa but not its variants. This finding could partly explain the neuronal-glial morphology of BCa cells. Our aim was to determine mRNA expression of MAP-tau variants 2, 4 and 6 in breast cancer cell lines. MATERIALS AND METHODS Cultured cell lines MCF-10A, MDA-MB-231, SKBR3 and T47D were observed under phase-contrast microscopy for neural morphology and analyzed for gene expression of MAP-Tau transcript variants 2, 4 and 6 by real-time PCR. RESULTS Regarding morphology like neural/glial cells, T47D line shown more cells with these features than MDA-MB-231 and SKBR. In another hand, we found much greater mRNA expression of MAP-Tau transcript variants 2, and to a lesser extent 4 and 6, in T47D cells than the other lines. In conclusion, regulation of MAP- Tau could bring about changes in cytoskeleton, cell morphology and motility; these findings cast further light on neuronal transdifferentiation in BCa.
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Affiliation(s)
- E Lara-Padilla
- Laboratory of Molecular Oncology and Oxidative Stress, Mexico City, Mexico, E-mail :
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Bandala C, De la Garza-Montano P, Cortes-Algara A, Cruz-Lopez J, Dominguez-Rubio R, Gonzalez-Lopez NJ, Cardenas-Rodriguez N, Alfaro-Rodriguez A, Salcedo M, Floriano-Sanchez E, Lara-Padilla E. Association of Histopathological Markers with Clinico-Pathological Factors in Mexican Women with Breast Cancer. Asian Pac J Cancer Prev 2016; 16:8397-403. [DOI: 10.7314/apjcp.2015.16.18.8397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Leon-Hernandez SR, Padilla EL, Algara AC, Rodriguez NC, Sanchez EF, Cruz JL, Mejia Barradas CM, Bandala C. Relation of alcohol/tobacco use with metastasis, hormonal (estrogen and progesterone) receptor status and c-erbB2 protein in mammary ductal carcinoma. Asian Pac J Cancer Prev 2015; 15:5709-14. [PMID: 25081690 DOI: 10.7314/apjcp.2014.15.14.5709] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND An association between alcohol/tobacco use and risk of metastasis in breast cancer has been clearly shown. MATERIALS AND METHODS The present study explored, in 48 samples of tissue from mammary ductal carcinoma (taken from Mexican women with an average age of 58.2±10.9 years), the association of risk of metastasis with the status of hormonal receptors and the c-erbB2 protein (by immunohistochemistry) as well as clinical, histopathological and sociodemographic factors. RESULTS Of 48 patients, 41.6% (20/48) presented with metastasis, 43.8% were positive for the estrogen receptor (RE+), 31.3% for the progesterone receptor (RP+) and 47.7% for c-erbB2 (c-erbB2+). The following combinations were found: RE+/RP+/c-erbB2+ 8.3%, RE+/RP+ 22.9%, RE+/RP- 20.8%, RE-/RP+ 8.3%, RE-/RP-/c-erbB2- 22.9% and RE-/RP- 47.8%. There were 12 patients who used alcohol/tobacco, of which 91.6% did not present metastasis and 81.9% were RE-/RP-. Compared to the RE-/RP-/c-erbB2+, the RE+/RP+/c-erbB2+ group had a 15-fold greater risk for metastasis (95%CI, 0.9-228.8, p=0.05). The carriers of the double negative hormonal receptors had a 4.7 fold greater probability of being (or having been) smokers or drinkers (95%CI, 1.0-20.4, p = 0.03). CONCLUSIONS There was a clear protective effect of using alcohol and/or tobacco, in the cases included in the present study of mammary ductal carcinoma, associated with double negative hormonal receptors. However, this association could be due to a protective factor not measured (Neyman bias) or to a bias inherent in the rate of hospitalization (Berkson fallacy). This question should be explored in a broad prospective longitudinal study.
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Anaya-Ruiz M, Perez-Santos M. Innovation Status of Gene Therapy for Breast Cancer. Asian Pac J Cancer Prev 2015; 16:4133-6. [DOI: 10.7314/apjcp.2015.16.9.4133] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Yan JH, Pan L, Zhang XM, Sun CX, Cui GH. Lack of efficacy of Tai Chi in improving quality of life in breast cancer survivors: a systematic review and meta-analysis. Asian Pac J Cancer Prev 2015; 15:3715-20. [PMID: 24870782 DOI: 10.7314/apjcp.2014.15.8.3715] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND It is controversial whether Tai Chi (TC) benefits breast cancer survivors (BCS) on quality of life (QoL). We therefore undertook a meta-analysis to assess this question. MATERIALS AND METHODS A computerized search through electronic databases was performed to identify relevant randomized controlled trials (RCTs). The primary outcome was QoL, while secondary outcomes included body mass index (BMI), bone mineral density (BMD), and muscle strength. RESULTS Five RCTs involving 407 patients were included in the meta-analysis. The pooled standardized mean differences were 0.10 (95% confidence interval (CI): -0.35-0.54) for physical well- being, 0.03 (95%CI: -0.18-0.25) for social/family well-being, 0.24 (95%CI: 0.02-0.45) for emotional well-being, 0.23 (95%CI: -0.03-0.49) for functional well-being, and 0.09 (95%CI: -0.19-0.36) for additional concerns. TC failed to improve BMI, BMD, and muscle strength. CONCLUSIONS There is currently lack of sufficient evidence to support TC improving QoL and other important clinical endpoints.
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Affiliation(s)
- Jun-Hong Yan
- Department of Clinical Medical Technology, Affiliated Hospital of Binzhou Medical College, Binzhou, China E-mail :
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Zeichner SB, Cavalcante L, Suciu GP, Ruiz AL, Hirzel A, Krill-Jackson E. Long-term survival of women with locally advanced breast cancer with ≥ 10 involved lymph nodes at diagnosis. Asian Pac J Cancer Prev 2015; 15:3435-41. [PMID: 24870735 DOI: 10.7314/apjcp.2014.15.8.3435] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Axillary lymph node status at diagnosis remains the strongest predictor of long-term survival in breast cancer. Patients with more than ten axillary lymph nodes at diagnosis have a poor long-term survival. In this single institutional study, we set out to evaluate the prognosis of this high-risk group in the era of multimodality therapy. MATERIALS AND METHODS In this retrospective study, we looked at all breast cancer patients with greater than ten axillary lymph nodes diagnosed at Mount Sinai Medical Center (MSMC) from January 1st 1990 to December 31st 2007 (n=161). In the univariate analysis, descriptive frequencies, median survival, and 5- and 10-year survival rates were estimated for common prognostic factors. A multivariate prognostic analysis for time-to-event data, using the extended Cox regression model was carried out. RESULTS With a median and mean follow-up of 70 and 89.9 months, respectively, the overall median survival was estimated to be 99 months. The five-year disease-free survival (DFS) was 59.3% and the ten-year DFS was 37.9%, whereas the five- and ten-year overall survival (OS) was 66.6% and 43.9%, respectively. Multivariate analysis revealed a significant improvement in DFS among black patients compared to whites (p=0.05), improved DFS and OS among young patients (ages 21-45) compared to elderly patients (age greater than 70) (p=0.00176, p=0.0034, respectively), and improved DFS and OS among patients whose tumors were ER positive (p=0.049, p=0.0034). CONCLUSIONS In this single institution study of patients with greater than 10 positive axillary nodes, black patients had a significantly improved DFS compared with white patients. Young age and ER tumor positivity was associated with improved outcomes. Using multivariate analysis, there were no other variables associated with statistically significant improvements in DFS or OS including date of diagnosis. Further work is needed to improve breast cancer survival in this subgroup of patients.
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Karami K, Cheraghi M, Amori N, Pedram M, Sobhani A. Common Cancers in Khuzestan Province, South West of Iran, during 2005-2011. Asian Pac J Cancer Prev 2014; 15:9475-8. [DOI: 10.7314/apjcp.2014.15.21.9475] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Malehi AS. Diagnostic Classification Scheme in Iranian Breast Cancer Patients using a Decision Tree. Asian Pac J Cancer Prev 2014; 15:5593-6. [DOI: 10.7314/apjcp.2014.15.14.5593] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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