Parkinson's disease (PD), the second most common neurodegenerative disorder, is characterized by a progressive loss of dopaminergic neurons in the midbrain. Several pathogenetic factors have been involved in the onset and progression of PD, including inflammation, oxidative stress, unfolded protein accumulation, and apoptosis. Ample evidence indicates that miRNAs could regulate post-transcriptional gene expression and neuronal disease. In this study, we evaluated the effects and mechanism of miR-124-3p on 6-hydroxydopamine (6-OHDA)-induced neurotoxicity in PC12 cells and SH-SY5Y cells. qRT-PCR results showed that the level of miR-124-3p was downregulated in 6-OHDA-treated PC12 and SH-SY5Y cells, and overexpression of miR-124-3p significantly promoted the cell viability of 6-OHDA-treated PC12 and SH-SY5Y cells, whereas miR-124-3p inhibitor reversed these effects. In addition, PC12 or SH-SY5Y cells were treated with miR-124-3p mimics or inhibitors following 6-OHDA administration, which mediated cell apoptosis and downregulation or upregulation of Caspase-3 activity, respectively. A luciferase reporter assay revealed that annexinA5 (ANXA5) is a direct target gene of miR-124-3p, and miR-124-3p overexpression markedly downregulated the level of ANXA5. Strikingly, further analysis showed that miR-124-3p enhanced the viability of 6-OHDA-treated PC12 or SH-SY5Y cells by targeting ANXA5, which was associated with the stimulation of the ERK pathway. This study revealed that miR-124-3p may play a neuroprotective role in PD; this observation may provide new ideas and therapeutic targets for PD.

Because of similar clinical features, pulmonary artery sarcomas are often confused with other pulmonary vascular obstructive diseases. Computed tomography scanning and gadolinium-enhanced magnetic resonance imaging could be useful methods for differential diagnosis. The prognosis is very poor. The survival time after resection varies from several months to several years depending on the presence of recurrence or metastasis. Early diagnosis and radical surgical resection presents the only opportunity for a potential cure.

Colorectal cancer (CRC) is a multistage and highly heterogeneous malignant disease that mostly occurred in aged people accompanied by microbiota alteration. Emerging evidence has uncovered the role of bacterial microbiota in the initiation and development of CRC. However, the effects of nonbacterial members inhabiting the human body, such as fungi, archaea, and viruses, have been largely ignored. The multi‐kingdom microbiota can be altered by dietary exposures and probiotic supplements. Furthermore, the efficacy of antitumor therapeutic strategies, such as radiotherapy, chemotherapy, and immunotherapy, are also closely associated with the alteration of multi‐kingdom microbiota. In this review, we describe CRC‐associated multi‐kingdom microbiota dysbiosis and the role of daily diet on CRC progression through microbiota alteration. We then discuss the impact of microbiota in different CRC therapies and highlight the advances as well as challenges in understanding how multi‐kingdom microbiome impacts the outcome of CRC.

Synthesis and Antitumor Activity of Novel 2',3'-Diethanethio-2',3',5'-trideoxy-5'-triazolonucleoside Analogues. -A series of novel triazoloribonucleosides (VII) is synthesized by the route described for the preparation of derivative (VI) and evaluated for antitumor activity. Substances with aryl substituted triazoles, e.g. (VIId) and (VIIe), show significantly improved activity towards a broad range of tumor cells whereas those without aryl substituents are inactive. -(YU, J.-L.; WU*, Q.-P.; ZHANG, Q.-S.; XI, X.-D.; LIU, N.-N.; LI, Y.-Z.; LIU, Y.-H.; YIN, H.-Q.; Eur.

on silica as heterogeneous reusable catalyst allows the selective conversion of primary benzyl and trityl ethers into acetates. In case of the xylofuranose derivatives (VII) the anomeric isopropylidene groups remain intact whereas they are cleaved for the substrate (V). The two benzyl groups in acetal (XI) are inert and selective deprotection of the dimethyl acetal groups is observed. -(LIU, N.-N.; YU, P.; YUAN, W.-Y.; ZHANG, Q.-S.; WU*, Q.-P.; J. Chin. Chem. Soc. (Weinheim, Ger.) 61 (2014) 9, 985-989, http://dx.