Recent surveys have shown that African-American women develop highly aggressive breast tumors and experience about three-time higher mortality rates in comparison with other populations. Most African-American women have estrogen receptor negative (ER-), progesterone receptor negative (PR-) and human epidermal growth factor receptor-2 negative (HER-2-) tumors. Current Food and Drug Administration (FDA)-approved breast cancer therapies are geared toward the treatment of estrogen positive (ER+) breast tumors, which include Selective Estrogen Receptor Modulators (SERMs) and Aromatase inhibitors. Both SERMs and aromatase inhibitors serve to alleviate the estrogen effect upon the progression of ER+ breast cancers. Nevertheless, there is a lack of treatment for triple negative (ER-, PR- and HER-2- ) breast cancer which overwhelmingly affects African-American women. This proposal's emphasis is directed toward a natural occurring potential chemopreventive and/or chemotherapeutic agent, indole-3-carbinol, which has been found to display both preventive and therapeutic anti-breast cancer activities in various studies, lndole-3-carbinol is a product found in cruciferous vegetables, and it is being marketed in health food stores as a dietary supplement. The key metabolite of lndole-3-carbinol is its acid form which is converted to other intermediates, such as 3, 3'dlindolylmethane (DIM). Our hypothesis is that DIM induces apoptosis by the inhibition of phosphatidylinositol 3-kinase (PI3K)/serine-threonine kinase (Akt,) signaling pathway by antagonism at active site which is involved the stimulation of triple negative breast cancer growth by estradiol. This hypothesis has been substantiated by preliminary molecular modeling studies which indicate that there is similarity between the chemical structures of DIM analogues and estradiol. We will validate our hypothesis by the following specific aims: 1. Synthesis of hydroxlyated, benzofuran and benzothiophene DIM analogues. 2. Anti-proliferation Studies using MDA-MB-231, MDA-MB-435 and MDA-MB-435 estrogen receptor triple negative breast cancer cell lines, and Inhibition of Akt signal pathway using Immunoblot analysis, 3. Computational Studies for optimization of breast cancer growth inhibitory activity.
Our ultimate goal is to develop chemotherapeutic agents for the treatment of estrogen non responsive breast cancer patients because of the tremendous need. We hope to develop dmgs with enhanced efficiency by looking at analogs of a natural product which shows some activity against this particular type of breast cancer.
|Mazzio, Elizabeth A; Lewis, Charles A; Elhag, Rashid et al. (2018) Effects of Sepantronium Bromide (YM-155) on the Whole Transcriptome of MDA-MB-231 Cells: Highlight on Impaired ATR/ATM Fanconi Anemia DNA Damage Response. Cancer Genomics Proteomics 15:249-264|
|Miles, Jana S; Sojourner, Samantha J; Jaafar, Lahcen et al. (2018) THE ROLE OF PROTEIN CHAPERONES IN THE SURVIVAL FROM ANTHRACYCLINE-INDUCED OXIDATIVE STRESS IN SACCHAROMYCES CEREVISIAE. Int J Adv Res (Indore) 6:144-152|
|Mazzio, Elizabeth A; Soliman, Karam F A (2018) Whole-transcriptomic Profile of SK-MEL-3 Melanoma Cells Treated with the Histone Deacetylase Inhibitor: Trichostatin A. Cancer Genomics Proteomics 15:349-364|
|Cheriyan, Vino T; Alsaab, Hashem; Sekhar, Sreeja et al. (2018) A CARP-1 functional mimetic compound is synergistic with BRAF-targeting in non-small cell lung cancers. Oncotarget 9:29680-29697|
|Badisa, Ramesh B; Batton, Chyree S; Mazzio, Elizabeth et al. (2018) Identification of biochemical and cytotoxic markers in cocaine treated PC12 cells. Sci Rep 8:2710|
|Cobourne-Duval, Makini K; Taka, Equar; Mendonca, Patricia et al. (2018) Thymoquinone increases the expression of neuroprotective proteins while decreasing the expression of pro-inflammatory cytokines and the gene expression NF?B pathway signaling targets in LPS/IFN? -activated BV-2 microglia cells. J Neuroimmunol 320:87-97|
|Sojourner, Samantha J; Graham, Willie M; Whitmore, Aurellia M et al. (2018) The Role of HSP40 Conserved Motifs in the Response to Cytotoxic Stress. J Nat Sci 4:|
|Mazzio, E; Badisa, R; Eyunni, S et al. (2018) Bioactivity-Guided Isolation of Neuritogenic Factor from the Seeds of the Gac Plant (Momordica cochinchinensis). Evid Based Complement Alternat Med 2018:8953958|
|Mendonca, Patricia; Taka, Equar; Bauer, David et al. (2018) The attenuating effects of 1,2,3,4,6 penta-O-galloyl-?-d-glucose on pro-inflammatory responses of LPS/IFN?-activated BV-2 microglial cells through NF?B and MAPK signaling pathways. J Neuroimmunol 324:43-53|
|Kutlehria, Shallu; Behl, Gautam; Patel, Ketan et al. (2018) Cholecalciferol-PEG Conjugate Based Nanomicelles of Doxorubicin for Treatment of Triple-Negative Breast Cancer. AAPS PharmSciTech 19:792-802|
Showing the most recent 10 out of 106 publications