Background: The inadequate early detection strategies makes hepatocellular carcinoma (HCC) patients with poor prognisis. Therefore, more effective detection methods are urgently needed for early detection and early intervention of HCC.Methods: 17 cases of suspected HCC patients and 11 cases of HBV-related decompensated cirrhosis (HBV-DeCi) patients were enrolled. For each patient, 5 ml blood sample was separated into circulating tumor cells (CTCs) and plasma, CTCs were stained with Diff staining for counting. Plasma was used for extracting cell free DNA (cfDNA) and then analyzed by qMSP assay. Ct values were recorded for GNB4 and Riplet as target genes and β-actin as an endogenous reference gene. Finally, clinical efficacy of CTC count combined with GNB4/Riplet methylation detection for early diagnosis of HCC was analyzed.Results: The CTC of HCC patients has pleomorphic characteristics, but it is difficult to distinguish from other blood cells with non-obviously pleomorphic of CTC. Although a small number of CTCs can also be detected in HBV-DeCi patients (control group), the number is significantly lower than that in HCC patients, the sensitivity and specificity of CTC for HCC detection were 70.6% and 90.9% (AUC = 0.81). The Ct values of GNB4 and Riplet methylation were significantly different between HCC patients and control group patients. When CTC combined with two genes, the AUC value was significantly increased to 0.98, the sensitivity was 88.2%, and the specificity was 100%.Conclusion: Our study has developed a novel test that CTC count combined with GNB4/Riplet methylation detection and showed its high performance for early diagnosis of HCC.
Skin wounds may cause severe financial and social burden due to the difficulties in wound healing. Original inert dressings cannot meet multiple needs in the process of wound healing. Therefore, the development of materials to accelerate healing progress is essential and urgent. In the previous study, we found that the homogeneously synthesized hydroxybutyl chitosan (HBCS) had an effective performance in promoting wound healing. Proteomic analysis of the same specimen suggested that matrix metalloproteinase 23 (MMP23) may play a key role in HBCS expediting the progress of wound healing. In this work, we aim to reveal the underlying mechanism of MMP23 in the dynamic process of cutaneous proliferation and repair period. In order to regulate the expression level of MMP23 in the local wound area, we leaded in adeno-associated virus (AAV) to specifically decreased expression quantity of MMP23 in rat skin. In contrast to the negative control groups, we found that the wound closed faster and the collagen fibers and neovascularization were significantly increased in AAV groups. These findings highlighted that MMP23 was involved in wound healing after traumatic injury, and managing the expression of MMP23 could be a potential intervention target to accelerate wound healing.
Reliable tumor biomarkers for risk assessment, screening, detection, diagnosis, and prognosis remain an unmet need for patients with AIDS-Related Non-Hodgkin’s Lymphoma (AIDS-NHL) and its high risk population–HIV/AIDS patients. In this study, we generated spontaneously immortalized B lymphocyte cell (SIBC) lines by culturing peripheral blood mononuclear cells (PBMCs) derived from AIDS-NHL and HIV/AIDS patients, then evaluated their clinical significance for detection, diagnosis, and prognosis. From 34 AIDS-NHL and 71 HIV/AIDS patients, we generated 14 AIDS-NHL-SIBC and 6 HIV-SIBC lines, respectively. Among 14 AIDS-NHL-SIBC lines, 12 SIBCs were derived from patients with poor prognoses. All SIBCs presented main markers typical of memory B-cells (CD3−CD20+CD27+) and the majority of cells expressed NHL related immunologic proteins (BCL-2, MUM-1. Ki67, etc.). AIDS-NHL-SIBCs exhibited the typical biological characteristics of tumor cells, including monoclonal Ig gene rearrangement, abnormal chromosome, and growth of xenograft tumors in NOD/SCID mice, while HIV-SIBCs possessed partial tumor cell properties, but no xenograft tumors. These findings suggest that the AIDS-NHL-SIBC lines are representative of the malignant B-lymphocytes circulating in AIDS-NHL patients (CTC), while HIV-SIBC might be a CTC precursor in HIV/AIDS patients. These data provide evidence of a potentially valuable diagnostic and prognostic biomarker for AIDS-NHL patients, and present a basis for early screening of NHL among HIV/AIDS patients.
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