Comprehensive Analysis of miRNA-Mediated Regulatory Network and Identification of Prognosis Biomarkers in Rectal Cancer

Influence of humanistic care-based operating room nursing on safety, recovery, and satisfaction after radical surgery for colorectal carcinoma

BACKGROUND

Radical surgery is a preferred treatment for colorectal carcinoma, wherein nursing intervention is essential for postoperative recovery and prevention of complications. Recently, the application of humanistic care in medical care has attracted attention. Humanistic care emphasizes comprehensive care, with importance attached to patients' physical needs as well as psychological and emotional support to provide more humane and personalized care services. However, no clinical reports have examined the use of humanistic care in patients undergoing radical surgery for colorectal carcinoma.

AIM

To investigate the influence of humanistic care-based operating room nursing on the safety, postoperative recovery, and nursing satisfaction of patients who have undergone radical surgery for colorectal carcinoma.

METHODS

In total, 120 patients with rectal cancer who underwent surgery in Zhongnan Hospital of Wuhan University between August 2023 and March 2024 were selected and grouped based on the nursing methods employed. Of these patients, 55 were treated with routine nursing intervention (control group) and 65 were provided humanistic care-based operating room nursing (research group). The patients' vital signs were recorded, including systolic/diastolic blood pressure (SBP/DBP) and heart beats per minute (BPM), as well as serum stress indices, including norepinephrine (NE), adrenal hormone (AD), and cortisol (Cor). Postoperative recovery and complications were also recorded. Patients' negative emotions, life hope, and nursing satisfaction were evaluated using the Self-rating Depression/Anxiety Scale (SDS/SAS), Herth Hope Index (HHI), and self-developed nursing satisfaction questionnaire, respectively.

RESULTS

During emergence from anesthesia, SBP, DBP, and BPM levels were found to be lower in the research group than those in the control group, also serum Cor, AD, and NE levels were lower. In addition, the research group had shorter operative, awakening, anal exhaust, first postoperative ambulation, drainage tube removal, intestinal recovery, and hospital times. The total complication rate and the SDS and SAS scores were lower in the research group than those in the control group. The HHI and nursing satisfaction scores were higher in the research group.

CONCLUSION

Humanistic care-based operating room nursing can mitigate physiological stress responses, reduce postoperative complications, promote postoperative recovery, relieve adverse psychological emotions, and enhance life hope and nursing satisfaction in patients undergoing radical surgery for colorectal carcinoma, which can be popularized in clinical practice.

Identification of a glycolysis-related miRNA Signature for Predicting Breast cancer Survival

Breast cancer (BC) is a common type of cancer and has a poor prognosis. In this study, we collected the mRNA and miRNA expression profiles of BC patients were obtained from The Cancer Genome Atlas (TCGA) to explore a novel prognostic strategy for BC patients using bioinformatics tools. We found that six glycolysis-related miRNAs (GRmiRs, including hsa-mir-1247, hsa-mir148b, hsa-mir-133a-2, has-mir-1307, hsa-mir-195 and hsa-mir-1258) were correlated with prognosis of BC samples. The risk score model was established based on 6 prognosis-associated GRmiRs. The outcome of high risk group was significantly poorer. Cox regression analysis showed that risk score was an independent prognostic factor. Differentially expressed genes identified between high and low risk groups were mainly enriched in inflammation and immune-related signaling pathways. The proportion of infiltration of 12 kinds of immune cells in high and low risk groups were significantly different. Risk score was closely associated with many immune indexes. Multiple DEGRGs and miRNAs were associated with drugs. In conclusion, glycolysis-related miRNA signature effectively predicts BC prognosis.

Identification of miRNAs and target genes associated with lymph node metastasis in cervical cancer using bioinformatics analysis

This study was designed to identify the differentially expressed miRNAs (DEMs) and genes (DEGs) in metastatic cervical cancer using bioinformatic tools. In this study, fifty-seven DEMs (48 downregulated and 9 upregulated) were identified, among which miR-4459 and miR-3195 expression was negatively associated with overall survival of cervical cancer patients. Then, 476 target DEGs were determined, and protein-protein interaction (PPI) network was constructed. Seventeen hub genes (LONRF2, CCNE2, AURKA, SYT1, NEGR1, PPP1R12B, GABRP, RAD51, CDK1, FBLN5, PRKG1, CDC6, CACNA1C, MEOX2, ANLN, MYLK, and EDNRB) were finally selected to construct the miRNA-hub gene network. Overall, our study discovered the key miRNAs and mRNAs related to lymph node metastasis (LNM) in cervical cancer, which helps discover candidate therapeutic targets for cervical cancer.

hsa-mir-133a-2 promotes the proliferation and invasion of cervical cancer cells by targeting the LAMB3-mediated PI3K/ATK pathway

OBJECTIVE

Cervical cancer, one of the common types of malignant tumors progressed in women, is on the rise in developing countries. Numerous previous studies have demonstrated that hsa-mir-133a-2 miRNA is abnormally expressed in cervical cancer cells. However, its fundamental mechanism in cervical cancer needs to be further clarified. Our study set out to investigate the effect of hsa-mir-133a-2 on the phenotypes of cervical cancer cells as well as any potential molecular processes involved in the proliferation and invasion of cervical cancer cells.

METHODS

The Cancer Genome Atlas-cervical squamous cell carcinoma and endocervical adenocarcinoma(TCGA-CESC) was adopted in order to verify the expression of hsa-mir-133a-2 in cervical cancer tissues and to identify its potential targets. The interaction between Laminin subunit beta-3(LAMB3) and hsa-mir-133a-2 was verified by TargetScan database as well as Luciferase reporter assay. The Cell Counting Kit-8 (CCK8) and transwell methods were utilized to assess the influence of hsa-mir-133a-2 on the proliferation and invasion characteristics of cervical cancer cells. We studied the role that hsa-mir-133a-2 plays in cervical cancer progression through Kyoto Encyclopedia of Genes and Genomes(KEGG) analysis as well as Western Blot (WB) experiment.

RESULTS

Down-regulation of hsa-mir-133a-2 was detected in cervical cancer tissues. It directly targeted LAMB3 and negatively regulated LAMB3 expression. The overexpression of hsa-mir-133a-2 has a significant inhibiting effect on cervical cancer cell proliferation and invasion. The overexpression of hsa-mir-133a-2 significantly inhibits the proliferation and invasion of cervical cancer cells. Moreover, the LAMB3 was able to up-regulate the phosphorylation levels of AKT and phosphatidylinositol 3-kinase (PI3K) protein in cervical cancer cells. hsa-mir-133a-2 could also modulate the PI3K/AKT signaling pathway by targeting LAMB3.

CONCLUSION

hsa-mir-133a-2 inhibits cervical cancer cell proliferation and invasion by indirectly regulating the PI3K/AKT signaling pathway, providing us with a new clinical treatment strategy for cervical cancer.