Publications by authors named "Ligang Niu"

The breast cancer specific survival (BCSS) benefits of Neoadjuvant therapy (NeoAT) for triple-negative metaplastic breast cancer (TNMpBC) was uncertain. This study aimed to develop a prediction model for assessing the BCSS for TNMpBC patients with NeoAT. The primary cohort of 1163 patients with TNMpBC, from which a nomogram was established based on the results of a LASSO regression analysis, was derived from multi-centers data in China and the SEER database.

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Breast cancer (BC) is the most prevalent cancer in women globally. The tumor microenvironment (TME), comprising epithelial tumor cells and stromal elements, is vital for breast tumor development. N6-methyladenosine (m6A) modification plays a key role in RNA metabolism, influencing its various aspects such as stability and translation.

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The majority of advanced breast cancers exhibit strong aggressiveness, heterogeneity, and drug resistance, and currently, the lack of effective treatment strategies is one of the main challenges that cancer research must face. Therefore, developing a feasible preclinical model to explore tailored treatments for refractory breast cancer is urgently needed. We established organoid biobanks from 17 patients with breast cancer and characterized them by immunohistochemistry (IHC) and next generation sequencing (NGS).

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Article Synopsis
  • This study evaluated the effectiveness of circulating tumor DNA (ctDNA) as a biomarker for monitoring treatment response in breast cancer patients undergoing primary systemic therapy (PST).
  • The research involved analyzing plasma samples from 72 stage II-III breast cancer patients, revealing that a significant decrease in ctDNA levels during treatment was linked to better treatment responses and longer recurrence-free survival.
  • The findings suggest that early ctDNA changes could be used to improve treatment management and predict outcomes in breast cancer patients.
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Hypertension caused by a high-salt (HS) diet is one of the major causes of cardiovascular diseases. Underlining pathology includes oxidative stress and inflammation in the hypothalamic paraventricular nucleus (PVN). This study investigates genistein's (Gen) role in HS-induced hypertension and the underlying molecular mechanism.

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Background: Triple-negative breast cancer (TNBC), the most aggressive subtype of breast cancer, always exhibits a poor prognosis due to high risk of early recurrence and distant metastasis. Long noncoding RNAs (lncRNAs) have been reported as crucial regulators in breast cancer. However, the functions and action mechanisms of lncRNA ST8SIA6-AS1 in TNBC are largely unknown.

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Introduction: Due to the lack of randomized controlled trial, the effectiveness and oncological safety of nipple-excising breast-conserving therapy (NE-BCT) for female breast cancer (FBC) remains unclear. We aimed to explore and investigate the prognostic value of NE-BCT versus nipple-sparing breast-conserving therapy (NS-BCT) for patients with early FBC.

Methods: In this cohort study, data between NE-BCT and NS-BCT groups of 276,661 patients diagnosed with tumor-node-metastasis (TNM) stage 0-III FBC from 1998 to 2015 were retrieved from the Surveillance, Epidemiology, and End Results database.

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Background: The mesenchymal stem cell-derived exosome (MSCs-exo) carrying microRNAs have been proved to regulate tumor biological activities. Clarifying molecular mechanism and identifying predictive microRNAs will be of great value in anti-tumor therapy improvement.

Objective: We aimed to investigate the regulatory role of microRNA-342-3p (miR-342-3p) in MSCs-exo on breast cancer.

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Objective: To assess the expression of ARHGEF19 in human breast cancer, investigate its role in breast cancer, and clarify the mechanism.

Methods: Bioinformatics analysis, immunoblot, quantitative PCR, and immunohistochemical (IHC) assays were performed to assess ARHGEF19 expression in breast cancer. CCK-8 and Edu assays were conducted to reveal its role in breast cancer cell proliferation.

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The role of surgery and surgery type in stage IV breast cancer (BC) is unclear. We carried out a retrospective cohort study that included the data of 4,108 individuals with stage IV BC abstracted from SEER (Surveillance, Epidemiology, and End Results) data resource from 2010 to 2015. The patients were stratified into the non-surgery group, breast-conserving (BCS) surgery group, and mastectomy group.

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MicroRNAs (miRNAs) have been regarded as modulators in vascular pathologies, including hypertension. Dysregulated proliferation and migration of VSMCs (vascular smooth muscle cells) contributes to vascular remodeling during hypertension. miR-634 was reported to be dysregulated in hypertensive patients.

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Background: The homeobox gene family, encoding a specific nuclear protein, is essential for embryonic development, differentiation, and homeostasis. The role of the HOXB3 protein varies in different tumors. This study aims to explore the role of the HOXB3 gene in breast cancer.

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Objective: Body mass index (BMI) is a risk factor associated with breast cancer in postmenopausal women. This study aimed to identify the associations of BMI with clinical characteristics and management of breast cancer in female Chinese patients.

Methods: Clinicopathological information on 1296 women who were diagnosed with breast cancer was collected at our hospital.

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Breast cancer, as the most common malignancy, is the second leading cause of cancer-related death in women. One of the kelch family member ENC1 is involved in various pathophysiologic processes. But the role of ENC1 in breast cancer has not been investigated.

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Respiration monitoring equipment has wide applications in daily health monitoring and modern medical diagnosis. Despite significant progress being made in humidity sensors for respiration monitoring, the fabrication of the humidity sensors with low-cost, simple manufacturing process and easy integration remains a challenge. This work reports a facile and inexpensive laser printing fabrication of PEDOT:PSS micron line as a humidity sensor for respiration monitoring.

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Background: The features and survival of stage IV breast cancer patients with different metastatic sites are poorly understood. This study aims to examine the clinicopathological features and survival of stage IV breast cancer patients according to different metastatic sites.

Methods: Using the Surveillance, Epidemiology, and End Results database, we restricted our study population to stage IV breast cancer patients diagnosed between 2010 to 2015.

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Article Synopsis
  • FOXO4 is a transcriptional regulator that often acts as a tumor suppressor, and this study investigates its role in hypoxia-induced breast cancer cells (MCF-7).
  • Hypoxia reduced FOXO4 expression and promoted cell survival, but overexpressing FOXO4 reversed this effect by increasing apoptosis and caspase-3 activity.
  • The study found that FOXO4 overexpression inhibited the expression of HIF-2α and Bnip3, suggesting FOXO4 influences the balance of cell survival and apoptosis in breast cancer cells under low oxygen conditions.
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Breast cancer (BC) is one of the primary tumors with high incidence in women. The purpose of this study was to investigate the role of LINC00473 and underlying mechanisms in BC. Expression pattern of LINC00473 was analyzed using qRT-PCR (quantitative real-time polymerase chain reaction) assays in BC tissues and cells.

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Strategies that can make general materials smart are highly desired for developing artificial shape-morphing systems and devices. However, at present, it still lacks universal technologies that enable designable prototyping of deformable 3D micro-nanostructures. Inspired by natural automation systems, for instance, tendrils, leaves, and flowers deform dynamically under external stimuli by varying internal turgor, we report a dual-3D femtosecond laser processing strategy for fabricating smart and deformable 3D microactuators based on general photopolymers.

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Epithelial ovarian cancer (EOC) accounts for 90% of all ovarian cancer, which is the third most common gynaecological malignancy worldwide. Dysregulation of miRNAs is involved in the development of different types of EOC. The present study was designed to investigate the role of abnormal expression of miR-215 in the development of EOC and to elucidate the possible molecular mechanisms.

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Even though early detection methods and treatment options are greatly improved, chemoresistance is still a tremendous challenge for breast cancer therapy. Breast cancer stem cells (BCSCs) represent a subpopulation that is central to chemoresistance. We aim to investigate the relationship between SLC34A2 and chemoresistance in BCSCs and identify the underlying mechanisms by which SLC34A2 regulates chemoresistance in BCSCs.

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Optimal design and fabrication of novel devices for high-performance optofluidic applications is a key issue for the development of advanced lab-on-a-chip systems. Parallel cell counting with a high success rate and simple mode of operation is a challenging goal. Current cell-counting methods, using optical waveguides or flow cytometry, typically require a precise coupling of the probe light and involve complex operations.

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Objective: To investigate the role of ventrolateral periaqueductal gray (VL-PAG) metabotropic glutamate receptors subtype 7 and 8 (mGluR 7/8) in descending modulation of cardiosomatic motor reflex (CMR) in rats.

Methods: AMN082 (agonist of mGluR 7) and DCPG (agonist of mGluR 8) were injected into the VL-PAG of a rat model of CMR to observe their effects in modulating CMR. The raphe magnus nucleus (NRM) or the gigantocellular reticular nucleus (Gi) was then damaged, and the changes in VL-PAG descending modulation were observed.

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