Background: Leukemia stem cells (LSCs) are found to be one of the main factors contributing to poor therapeutic effects in acute myeloid leukemia (AML), as they are protected by the bone marrow microenvironment (BMM) against conventional therapies. Gossypol acetic acid (GAA), which is extracted from the seeds of cotton plants, exerts anti-tumor roles in several types of cancer and has been reported to induce apoptosis of LSCs by inhibiting Bcl2.
Aim: To investigate the exact roles of GAA in regulating LSCs under different microenvironments and the exact mechanism.
Colorectal cancer (CRC) is the third most prevalent cancer in the world. The PD-1/PD-L1 pathway plays a crucial role in modulating immune response to cancer, and PD-L1 expression has been observed in tumor and immune cells within the tumor microenvironment of CRC. Thus, immunotherapy drugs, specifically checkpoint inhibitors, have been developed to target the PD-1/PD-L1 signaling pathway, thereby inhibiting the interaction between PD-1 and PD-L1 and restoring T-cell function in cancer cells.
View Article and Find Full Text PDFColorectal cancer (CRC) is the third leading cause of cancer-related death in men and women worldwide. As early detection is associated with lower mortality, novel biomarkers are urgently needed for timely diagnosis and appropriate management of patients to achieve the best therapeutic response. Long noncoding RNAs (lncRNAs) have been reported to play essential roles in CRC progression.
View Article and Find Full Text PDFEarly onset and progression of liver diseases can be driven by aberrant transcriptional regulation. Different transcriptional regulation processes, such as RNA/DNA methylation, histone modification, and ncRNA-mediated targeting, can regulate biological processes in healthy cells, as well also under various pathological conditions, especially liver disease. Numerous studies over the past decades have demonstrated that liver disease has a strong epigenetic component.
View Article and Find Full Text PDFThis study aimed to develop a predictive model based on the risk of locoregional recurrence (LRR) in epidermal growth factor receptor ()-mutant stage III-pN2 lung adenocarcinoma after complete resection. A total of 11,020 patients with lung surgery were screened to determine completely resected -mutant stage III-pN2 lung adenocarcinoma. Patients were excluded if they received preoperative therapy or postoperative radiation therapy (PORT).
View Article and Find Full Text PDFShenqi Fuzheng injection (SFI) has been confirmed to be able to alleviate brain injury in mice. This study examined the brain-protective effect of SFI on patients after cranial radiation. Lung cancer patients with brain metastasis were randomly assigned to two groups.
View Article and Find Full Text PDFZhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
August 2015
Objective: To identify the genotypes of Toxoplasma gondii that infects HIV-positive people in Dali of Yunnan Province through analyzing the genetic loci of the surface antigens SAG1 and SAG3.
Methods: A total of 291 blood samples from HIV-positive cases were collected from the HIV/AIDS Prevention and Control Institution in Yunnan. Nested PCR was used to amplify SAGI and SAG3 genes in the blood samples.
Aim: Radiation-induced brain injury (RIBI) is the most common and severe adverse effect induced by cranial radiation therapy (CRT). In the present study, we examined the effects of the traditional Chinese medicine Shenqi Fuzheng Injection (SFI) on RIBI in mice, and explored the underlying mechanisms.
Methods: C57BL/6J mice were subjected to a single dose of 20-Gy CRT.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
February 2015
Objective: To preliminarily understand the genotype characteristics of Toxoplasma gondii in blood of HIV-positive persons in Lincang City, Yunnan Province.
Method: Two segments of SAG2 gene of T. gondii from blood samples of HIV-positive persons in Lincang City were extracted and amplified by using the nested PCR method and the genotype was identified and compared with the standard strain (Type I) of Toxoplasma gondii.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
August 2014
Objective: To comparatively analyze Toxoplasma gondii separated from HIV-positive people and RH strain GRA6 gene.
Methods: By using the nested PCR, the amplification of Dali HIV-positive blood samples and RH strains of Toxoplasma GRA6 genome was performed. The GRA6 gene amplification positive product was selected and the electrophoresis imaging was performed by being digested with the Mse I endonuclease, and the gene sequences were measured and analyzed.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
October 2013
One hundred and fifty serum samples of HIV positive patients were collected in western Yunnan Province from September 2011 to December 2012. Toxoplasma gondii B1 gene was amplified by nested PCR. Genotyping of T.
View Article and Find Full Text PDFZhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
April 2013
Toxoplasma gondii is a nucleated cell obligate parasite, and can cause severe toxoplasmosis. The genetypes of Toxoplasma gondii isolates of different host infections have significant differences, and the pathogenicity and sensitivity to drugs of different genotypes of Toxoplasma gondii isolates are also significantly different. At present, the analysis of Toxoplasma gondii genotypes is performed by using PCR-RFLP, PCR of highly repetitive sequences, multiple PCR and nested PCR techniques, and the multiple loci of amplification are usually B1, SAG2, HSP70, GRA6 and other genetic markers.
View Article and Find Full Text PDFRecombinant human endostatin (rh-endostatin), a potential antiangiogenic agent, is used in non-small cell lung carcinoma treatment and represses vascular endothelial cell growth factor (VEGF) levels in tumor cell. However, precise affection of rh-endostatin on the proangiogenic VEGF isoforms (VEGF(165)) or antiangiogenic VEGF isoforms (VEGF(165)b) is not clear. We therefore tested the hypothesis that rh-endostatin could alter expression of these isoforms to regulate tumor growth.
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