Publications by authors named "Jiaman Wang"

Human epidermal growth factor receptor 2 (HER2) overexpression and activation are crucial for trastuzumab resistance in HER2-positive breast cancer; however, the potential regulatory mechanism of HER2 is still largely undetermined. In this study, a novel circular RNA derived from peptidylprolyl isomerase D (PPID) is identified as a negative regulator of trastuzumab resistance. Circ-PPID is highly stable and significantly downregulated in trastuzumab-resistant cells and tissues.

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While the multiple functions of extracellular DNA (exDNA) in biofilm formation and electron transfer have been extensively studied in pure culture, its role in mixed anodic biofilm was still unknown. In this study, we employed DNase I enzyme to digest exDNA, thereby investigating its role in anodic biofilm formation based on the performance of four microbial electrolysis cells (MECs) groups with different DNase I enzyme concentration (0, 0.05, 0.

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KRAS is the most commonly mutated oncogene in human tumors, especially in lung, pancreatic, and colorectal cancers. Small-molecule inhibitors targeting mutant KRAS demonstrated promising anti-tumor effect in patients with non-small cell lung cancer harboring KRAS mutation, while the intrinsic and acquired drug resistance occurred frequently and might be inevitable. Unlike the protein-level inhibition approach, gene silencing/editing tools for DNA-level knockout and RNA-level knockdown of mutant KRAS may be advantageous since these approaches directly eliminate the production of mutant KRAS-encoded protein.

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Although the acute and/or chronic exposure to AFB has been widely investigated, the study on the toxic effects resulted from the subchronic exposure of AFB which is more close to the real scenario in view of the regional and seasonal characters of aflatoxin-producing strains is still limited. To understand the subchronically toxic effects of AFB, we studied the AFB-induced oxidative damage, reproductive impairment as well as their potential correlations and mechanisms at the molecular level. Generally, our results showed that subchronic exposure of AFB gave rise to pathological and oxidative damages in mice, disrupted oxidation-reduction homeostasis, activated mitochondrial apoptotic and p53-regulated signaling pathways, induced DNA and chromosomal damages and increased the rate of sperm malformation.

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Squamous cell carcinoma (SCC) and basal cell carcinoma (BCC) have exhibited a marked increase in incidence in previous decades and are the most common malignancies in Caucasian populations. Src homology 3 and multiple ankyrin repeat domains protein-associated RH domain-interacting protein (SHARPIN) has been identified as a commonly overexpressed proto-oncogene in several types of visceral cancer. However, to the best of our knowledge, the functions of SHARPIN in nonmelanoma skin cancer (NMSC) have not been described.

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Shank-associated RH domain-interacting protein (SHARPIN) is a type of linear ubiquitin chain-associated protein, which serves an important role in cell proliferation, apoptosis, organ development, immune and inflammatory reaction, initiation and development of malignant tumors. To evaluate SHARPIN expression in multiple malignant tumors derived from different germ layers, 14 types of cancer and their corresponding normal tissues were examined. Immunohistochemistry was performed to semi-quantify SHARPIN expression in multiple malignant tumors, and immunofluorescence was performed to evaluate the subcellular localization of SHARPIN in various malignant tumors.

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SHARPIN is an important component of the linear ubiquitin chain assembly complex (LUBAC). Loss of function of SHARPIN results in eosinophilic inflammation in multiple organs including skin with Th -dominant cytokines and dysregulated development of lymphoid tissues in mice. The clinicopathological features are similar to atopic dermatitis (AD) in humans.

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The binding characterization of aflatoxins with calf thymus DNA (ctDNA) under physiological conditions was investigated. Multispectroscopic techniques, ctDNA melting, viscosity measurements, and molecular docking techniques were employed to elucidate the binding mechanism of the aflatoxins with DNA. The fluorescence results indicated that both aflatoxin B1 (AFB1) and aflatoxin G1 (AFG1) bound to the ctDNA, forming complexes through hydrogen bonding.

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Purpose: The aim of the study was to explore clinical effect of community physician-guided long-term domiciliary oxygen therapy (LTDOT) on patients with Stage IV chronic obstructive pulmonary disease (COPD).

Design: A retrospective study.

Methods: Fifty-four patients with Stage IV COPD were recruited and randomly divided into two groups (the LTDOT group and the control group).

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Background: Localized autosomal recessive hypotrichosis (LAH) is an inherited rare disease caused by DSG4 mutations, characterized by short, sparse, brittle hair affecting restricted areas such as the scalp, trunk, and extremities. To date, DSG4 mutations have been reported in 14 pedigrees of LAH overlapping with monilethrix.

Methods: To clarify the etiology of hair defects for a 2-year-old Chinese girl, peripheral blood, skin, and hair samples were collected, and skin immunohistochemistry, electron microscopy (scanning and transmission types), Vivascope confocal microscopy, and DSG4 sequencing were investigated.

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Background: The aim of this study was to investigate the gene expression profile of chronic obstructive pulmonary disease (COPD) patients and non-COPD patients.

Methods: Microarray raw data (GSE29133) was downloaded from Gene Expression Omnibus, including three COPD samples and three normal controls. Gene expression profiling was performed using Affymetrix human genome u133 plus 2.

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