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Inflammation’s impact on inflammatory bowel diseases is mostly due to altered non-coding RNA expression. This study aimed to explore the rs2107425 polymorphism in the long non-coding RNA gene H19 (lncRNA H-19) and emphasize the involvement of miR-200a and lncRNA H-19 expression in ulcerative colitis (UC) and Crohn’s disease (CD). One hundred and ten participants, ranging in age from 22 to 58 years, participated in the current investigation study. Study participants were classified into forty healthy participants, thirty-four patients with UC, and thirty-six patients with CD. Participants with ulcerative colitis and Crohn’s disease experienced a considerable elevation in C-reactive protein, total leucocyte count (TLC), platelets, and erythrocyte sedimentation rate (ESR), whereas a noticeable decrease in hemoglobin. Additionally, ulcerative colitis and Crohn’s disease both have markedly increased expression of lncRNA H-19 and miR-200a. The frequency of the CT + TT genotype of the rs2170425 lncRNAH-19 SNP was linked to susceptibility to IBDs. lncRNA H-19 and miR-200a can be used as non-invasive diagnostic biomarkers for follow-up patients with ulcerative colitis and Crohn’s disease.

Breast cancer (BC) is the most common neoplasm among women in most developed countries, including Egypt. Elevated levels of certain proteins in human BC are associated with unfavorable prognosis and progressive stages of the disease. The aim of our study was to evaluate the protein expression profile and prognostic significance of cyclooxygenase-2 (COX-2), matrix metalloproteinase-2 (MMP-2), MMP-9 and membrane type 1-MMP (MT1-MMP) and their interaction in operable BC patients. The protein expression of COX-2, MMP-2 and MT1-MMP were evaluated by western blot technique, whereas enzymatic activity of MMP-2 and MMP-9 was determined by zymography in 47 breast cancer patients as well as normal adjacent tissues. Also, the correlation between these proteins and age, tumor size, LN stage, TNM stage, estrogen receptor, progesterone receptor, disease-free survival, and overall survival (OS) has been investigated. As compared to adjacent normal tissues, COX-2, MMP-2 and MT1-MMP were over-expressed in 43, 64, and 60 % of tumor tissues, respectively. In the same pattern, the activity of MMP-2 (62 %) and MMP-9 (45 %) was elevated in BC tissues. Multivariate analysis showed a positive correlation between the protein expression of COX-2, MMP-2, and MT1-MMP and the activity of MMP-2 and MMP-9 in BC patients. However, the enzymatic activity showed no correlation with clinicopathological features. This study confirms the preclinical evidence that COX-2 increased the expression of MT1-MMP, which in turn activates MMP-2. The lack of correlation with clinicopathological features, OS or disease-free survival ascertains the complexity of tumor progression and metastasis with many pro- and counter regulatory factors.