The impact of CYP19A1 variants and haplotypes on breast cancer risk, clinicopathological features and prognosis

Genetic architecture of mammographic density as a risk factor for breast cancer: a systematic review

BACKGROUND

Mammography Density (MD) is a potential risk marker that is influenced by genetic polymorphisms and can subsequently modulate the risk of breast cancer. This qualitative systematic review summarizes the genes and biological pathways involved in breast density and discusses the potential clinical implications in view of the genetic risk profile for breast density.

METHODS

The terms related to "Common genetic variations" and "Breast density" were searched in Scopus, PubMed, and Web of Science databases. Gene pathways analysis and assessment of protein interactions were also performed.

RESULTS

Eighty-six studies including 111 genes, reported a significant association between mammographic density in different populations. ESR1, IGF1, IGFBP3, and ZNF365 were the most prevalent genes. Moreover, estrogen metabolism, signal transduction, and prolactin signaling pathways were significantly related to the associated genes. Mammography density was an associated phenotype, and eight out of 111 genes, including COMT, CYP19A1, CYP1B1, ESR1, IGF1, IGFBP1, IGFBP3, and LSP1, were modifiers of this trait.

CONCLUSION

Genes involved in developmental processes and the evolution of secondary sexual traits play an important role in determining mammographic density. Due to the effect of breast tissue density on the risk of breast cancer, these genes may also be associated with breast cancer risk.

In Vivo Growth Inhibition of Human Caucasian Prostate Adenocarcinoma in Nude Mice Induced by Amygdalin with Metabolic Enzyme Combinations

Cancer of the prostate is an indicated type that is often recorded as a kind of cancer in men and the second critical cause of mortality through cancer cases. Many pharmacological investigations have shown that numerous herbal substances possess anticancer action. Amygdalin (AMD) has antitumour capabilities and works as an antioxidant, antibacterial, anti-inflammatory, and immune-regulating characteristics. The anticancer effects of amygdalin and its metabolizing enzymes, rhodanese (RHD) and betaglucosidase (BGD), were examined in vivo, as well as their antitumour processes. Novel, effective combination agents are necessary to increase existing cancer treatment rates. This research was aimed at determining the anticarcinogenic impact of amygdalin (AMD) in vivo. This research was aimed at determining the RHD and BGD on the anticarcinogenic impact of AMD in vivo. Subcutaneously, PC3 prostate cancer cell lines were implanted into nude mice. Mice were treated every day with 0.5 ml of 50 mg/ml (AMD), AMD+ (RHD 0.1 mg/ml), AMD+(BGD 0.1 mg/ml), and doxorubicin (DOX 50 mg/ml). Mice were normalized for negative control with untreated mice. In in vivo, morphopathological alterations in the tumour tissue were analyzed by histopathological staining methods. After 35 days of therapy, tumour growth and size inhibition were evident, indicating a function for the metabolic enzymes BGD and RHD in regulating AMD's anticancer effect in vivo. We concluded the critical role of metabolic enzymes BGD and RHD in elevating the antigrowth of PC3 cancer cell lines in Balb/c nude mice treated with AMD.