Publications by authors named "Mengchu Liu"

Chemotherapy is regarded as a widely used and effective treatment strategy for lung cancer, although most conventional chemotherapeutics cause severe toxic side-effects due to their indiscriminate attacks on both cancerous and normal cells. Although nucleic acid nanomaterials are emerging as a promising drug delivery strategy, their clinical applications are limited by rapid degradation by nucleases and difficulties in targeting cancer cells. In this study, we have developed a Rhein-loaded aptamer-based DNA nanotube (DNT-S6@Rhein) for the targeted and efficient therapy of non-small cell lung cancer.

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Hereditary optic neuropathies (HON) are a group of diseases due to genetic defects either in mitochondria or in nuclear genomes. The increasing availability of genetic testing has expanded a broader genetic and phenotypic spectrum of HON than previously recognized. To provide systematic insight into the genetic and phenotypic landscape of HON attributed to 50 nuclear genes, we conducted genetic analysis on part of 4776 index patients with clinical diagnosis of HON following our previous study on 1516 probands with Leber hereditary optic neuropathy (LHON) and mitochondrial DNA variants.

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Background & Aims: The liver is the main organ of ketogenesis, while ketones are mainly metabolized in peripheral tissues via the critical enzyme 3-oxoacid CoA-transferase 1 (OXCT1). We previously found that ketolysis is reactivated in hepatocellular carcinoma (HCC) cells through OXCT1 expression to promote tumor progression; however, whether OXCT1 regulates antitumor immunity remains unclear.

Methods: To investigate the expression pattern of OXCT1 in HCC in vivo, we conducted multiplex immunohistochemistry experiments on human HCC specimens.

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The activation of Treg cell subsets is critical for the prognosis of tumor patients; however, their heterogeneity and disease association in papillary thyroid carcinoma (PTC) need further investigation. We performed high-dimensional flow cytometry for immunophenotyping on thyroid tissues and matched peripheral blood samples from patients with multinodular goiters or PTC. We analyzed CD4+ T cell and Treg cell phenotypes and compared the recurrence-free survival of PTC patients with different Treg cell subset characteristics using TCGA.

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Purpose: To evaluate the nature and association of different phenotypes associated with ABCA4 mutations in Chinese.

Methods: All patients were recruited from our pediatric and genetic eye clinic. Detailed ocular phenotypes were characterized.

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Background: High myopia with alopecia areata in the occipital region has been observed in patients with Knobloch syndrome caused by mutations. This study investigated other possible genetic causes of high myopia in patients with alopecia areata in the cranial midline.

Methods: Six patients with early onset high myopia and alopecia areata in the cranial midline were recruited.

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Macrophages are plastic cells that can switch among different states according to bioenergetic or biosynthetic requirements. Our previous work demonstrated that the transcription factor Forkhead Box Protein 1 (FoxO1) plays a pivotal role in regulating the function of macrophages, but the underlying mechanisms are still unclear. Here we identify FoxO1 as a regulator of macrophage function through metabolic reprogramming.

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Purpose: We evaluate the power of a next-generation sequencing-based ophthalmic targeted sequencing panel (NGS-based OTSP) as a genetics-testing tool for patients suspected of a wide range of hereditary eye diseases.

Methods: NGS-based OTSP encompasses 126 genes with identified mutations that account for the majority of Chinese families with hereditary eye diseases. A total of 568 probands suspected of having hereditary eye diseases underwent genetic testing by OTSP with targeted phenotype-driven analysis.

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Objective: To study the identification methods of Moghania philippinensis and Moghania macrophylla, and to establish a comprehensive precise discrimination method.

Methods: TLC and HPLC were applied to analyze genistein in the root of Moghania philippinensis and Moghania macrophylla. DNA barcoding establishment was based on ITS2 sequcence.

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