Oncotarget
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The implications of lncRNAs regarding fetal hemoglobin (HbF) induction in hemoglobin disorders remain poorly understood. In this study, microarray analysis was performed to profile lncRNAs, miRNAs and mRNAs in individuals with hereditary persistence of fetal hemoglobin (HPFH), β-thalassemia carriers with high HbF levels and healthy controls. The results show aberrant expression of 862 lncRNAs, 568 mRNAs and 63 miRNAs in the high-HbF group compared with the control group. ⋯ Based on the results, lncRNAs likely contribute to increased HbF levels by activating expression of HBE1 and hematopoietic cell lineage-inducible molecules and by inhibiting that of apoptosis-inducible molecules. Finally, through construction of a competing endogenous RNA network, we found that 6 lncRNAs could bind competitively with miR-486-3p, resulting in increased HbF levels. Taken together, our findings provide new insights into the mechanisms of HbF induction and potentially provide new targets for the treatment of β-thalassemia major.
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The aim of this study is to investigate the effects of L-type calcium channels (LTCCs) on MPTP-induced dopamine (DA) neuron degeneration and iron accumulation in the substantia nigra (SN) of mice. By real-time PCR and western blots, we first quatified expressions of L-type Cav1.2 and Cav1.3 calcium channel α1 subunits in the SN of experimental mice treated with MPTP. We found that the expressions of Cav1.2 and Cav1.3 calcium channel α1 subunits markedly increased after MPTP treatment for 2 and 3 weeks. ⋯ Treatment with Bayk8644 further aggravated iron accumulation. Treatment with isradipine prevented against MPP+-induced iron influx in the MES23.5 cells. These results suggest that up-regulation of LTCCs may be responsible for the DA neuron degeneration in the MPTP-treated mice, The LTCCs may directly contribute to iron influx into DA neurons, and isradipine may suppress cellular iron accumulation and prevents neurodegeneration.
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Review Meta Analysis
Prognostic value of KRAS mutation in advanced non-small-cell lung cancer treated with immune checkpoint inhibitors: A meta-analysis and review.
Immune checkpoint inhibitors (ICIs) have emerged as a promising treatment option in the fight against advanced non-small-cell lung cancer (NSCLC). KRAS is the most frequently mutated oncogene in NSCLC. We performed this meta-analysis to investigate if KRAS mutation status affects survival benefits of ICIs in patients with advanced NSCLC. ⋯ For patients with KRAS wild-type NSCLC, however, ICIs did not prolong overall survival over that with chemotherapy (hazard ratio = 0.88 [95% confidence interval, 0.68-1.13], P = 0.30). In conclusion, ICIs as a salvage therapy improved overall survival over that with docetaxel in advanced NSCLC patients with KRAS mutation, but not in those with KRAS wild-type tumor. These results suggest that KRAS mutation status may be a potential biomarker for survival benefits to ICIs.
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The PARP inhibitor olaparib was recently granted Food and Drug Administration (FDA) accelerated approval in patients with advanced BRCA1/2 mutation ovarian cancer. However, antitumor responses are observed in only approximately 40% of patients and the impact of baseline clinical factors on response to treatment remains unclear. Although platinum sensitivity has been suggested as a marker of response to PARP inhibitors, patients with platinum-resistant disease still respond to olaparib. ⋯ PTPI may be used to refine the prediction of response to PARP inhibition based on the conventional categorization of platinum sensitivity.
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Radical surgical resection remains the only effective treatment for advanced pancreatic cancer. Effective protocols for recovery from post-operative complications that result in high rates of morbidity and mortality are therefore essential. The enhanced recovery after surgery (ERAS) protocol is an interdisciplinary multimodal concept based on modern anesthesia and analgesia combined with other fast rehabilitation parameters. ⋯ We randomly divided 159 patients who underwent PD into two groups who were managed using either ERAS or the conventional protocol. We observed that in those treated with the ERAS protocol several post-operative recovery factors were greatly improved, and there were no complications requiring readmission. We therefore propose that ERAS can improve post-operative recovery of PD patients and shorten the waiting time to chemotherapy, which may improve the overall survival of surgically treated pancreatic cancer patients.