Publications by authors named "Guofeng Ma"

Article Synopsis
  • * Researchers found that using a glutamine antagonist called DON reduced bladder cancer cell growth and inhibited tumor growth in mice with a modified drug (JHU083) to reduce side effects.
  • * However, prolonged treatment altered T-cell immune response, increasing PD-L1 expression in cancer cells; combining JHU083 with gefitinib helped counteract this and improved treatment effectiveness.
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Objective: To investigate the immunohistochemistry (IHC) staining pattern and prognostic significance of p53 in non-endometrioid endometrial cancer (non-EEC).

Methods: This study retrospectively included 212 non-EEC patients, with histological types including serous carcinoma (SC), clear cell carcinoma (CCC), mixed carcinoma (MC), undifferentiated carcinoma (UC), and carcinosarcoma (CS). p53 IHC was interpreted as normal/wild-type and abnormal/mutant-type, the latter including overexpression, complete absence, and cytoplasmic staining patterns.

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Background: Overexpression of SLC16A3 can contribute to the development of various tumors by regulating metabolism, but a systematic analysis of SLC16A3 in bladder cancer (BC) has been rarely reported.

Methods: We used the BC datasets from public databases to investigate SLC16A3 expression in BC. We first analysed the relationship between SLC16A3 expression and clinical characteristics of 412 bladder cancer patients.

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Background: The recent randomized controlled trials studying intracranial atherosclerotic stenosis (ICAS) have used digital subtraction angiography (DSA) to quantify stenosis and enroll patients. However, some disadvantages of DSA such as invasive features, contrast agent overuse, and X-ray radiation overexposure, were not considered in these studies. This study aimed to explore whether computed tomography angiography (CTA) with semi-automatic analysis could be an alternative method to DSA in quantifying the absolute stenotic degree in clinical trials.

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  • Chronic thromboembolic pulmonary hypertension (CTEPH) is a serious and often underdiagnosed condition that can be treated with pulmonary endarterectomy (PEA) and other methods like balloon pulmonary angioplasty (BPA) and targeted therapies.
  • The CHANGE study in China is designed to investigate treatment patterns and clinical outcomes for CTEPH, involving over 1,500 patients diagnosed through specialized tests and followed for at least 3 years.
  • The study aims to improve awareness and understanding of CTEPH, focusing on mortality rates, quality of life, and the success of various treatment strategies among patients.
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Solid waste is increasing rapidly worldwide. In this study, the solid waste (household waste, construction and demolition waste and industrial waste) management systems are treated as reverse supply chain to analyze the critical operational issues based on complex adaptive system theory. At the single-layer, the complexity of the various nodes at a layer arises from rational decision-making and behavioral heterogeneity.

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Multi-band emission characteristics open up more possibilities for the application of phosphors in LEDs. In this work, a novel Bi-activated SrNaSbO phosphor is developed. The Bi occupation, luminescence properties and application in LEDs of the phosphor are investigated and discussed.

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  • Tumor-associated thrombus (TAT) significantly contributes to venous thromboembolism, complicating treatment and sometimes resulting in death before the tumor itself can be addressed.
  • The study highlights the role of myeloid SHP2 deficiency in enhancing monocyte/macrophage differentiation and promoting thrombus resolution by boosting the activity of enzymes like MMP2/9.
  • A novel delivery system called NanoSHP099 was developed, showing improved targeting and thrombolytic effects in cancer research, performing better than regular SHP099 in reducing both tumor size and thrombus burden.
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The purpose of this work was to compare the clinical characteristics, rate of recurrent venous thromboembolism (VTE), bleeding complications and mortality of incidental and symptomatic pulmonary embolism (PE) detected on computed tomography in patients with lung cancer. Clinical data of lung cancer patients with PE were obtained from the Department of Respiratory and Critical Care Medicine of Ningbo First affiliated hospital of Ningbo University during January 2016 and June 2021 and were reviewed retrospectively. We compared clinical and radiological characteristics in lung cancer patients with incidental PE (IPE) and symptomatic PE (SPE) and identified variables associated with the 1-year survival on multivariate Cox analysis.

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Objective: To evaluate the presence and subtypes of tertiary lymphatic structures (TLSs) in urothelial carcinoma of the bladder (UCB) and to analyze their associated clinicopathological characteristics and prognostic significance.

Methods: The study enrolled 580 patients with surgically treated UCB, including 313 non-muscle invasive bladder cancer (NMIBC) and 267 muscle-invasive bladder cancer (MIBC). The presence and subtypes of TLSs were identified by immunohistochemistry (CD20, CD3, Bcl-6, and CD21).

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ALDH1A1 is one of the classical stem cell markers for bladder cancer. Lysine 2-hydroxyisobutyrylation (Khib) is a newfound modification to modulate the protein expression, and the underlying mechanisms of how ALDH1A1 was regulated by Khib modification in bladder cancer remains unknown. Here, ALDH1A1 showed a decreased K260hib modification, as identified by protein modification omics in bladder cancer.

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Background: Post-traumatic trigeminal neuropathic pain (PTNP) following trigeminal neuralgia (TN)-related neuroablative procedures is relatively rare. Due to the fear of debilitating complications, its treatment has been generally suboptimal. Pregabalin (PGB) has been reported to relieve neuropathic pain.

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Purpose: To demonstrate a new individualized 3D printed oral stent in radiotherapy of nasopharyngeal carcinoma (NPC) patients and carry out a comparative analysis combining with clinical case.

Material And Methods: Thirty NPC patients treated in our institution from September 2021 to October 2022 were prospectively enrolled. An individualized 3D printed oral stent was designed for each patient, and one set of computed tomography (CT) slices were obtained with /without wearing the oral stent, respectively.

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Cancer severely threatens human health, which makes it particularly urgent to develop effective strategies for cancer diagnosis and therapy. Gene therapy and nucleic acid-based cancer diagnosis play important roles in cancer theranostic, but their applicability is challenged by the low cellular uptake and enzymatic degradation. In response, safe and efficient carrier metal-organic frameworks (MOFs) have been proposed.

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This study aimed to identify clinical characteristics of cancer patients with incidental pulmonary embolism (IPE) and assess the variables associated with 30-day mortality in cancer patients with PE including symptomatic pulmonary embolism (SPE) and IPE. 6-Month mortality rate in cancer patients with SPE and IPE were also compared. We retrospectively analyzed electronic medical records of cancer patients with newly diagnosed PE between January 2016 and June 2021.

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Gastric cancer (GC) is a malignancy originating from gastric epithelial tissue. Chemoresistance to cisplatin (DDP) often leads to chemotherapy failure in GC. Previously, miR-522 was found to be associated with chemoresistance in GC cells.

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Recurrent trigeminal neuralgia (TN) after surgical procedures can be rather difficult to treat, and standardized treatment measures are not available yet. It is unclear whether percutaneous balloon compression (PBC) can be used as the preferred surgical treatment for postoperative recurrent TN. To determine the efficacy of PBC and identify the predictors of response of PBC for the treatment of recurrent TN following TN-related surgeries, we retrospectively collected and analyzed the data of patients with recurrent TN following surgical treatments who underwent PBC under three-dimensional computed tomography (3D-CT) guidance at the Department of Pain Management of Beijing Tiantan Hospital, Capital Medical University from January 2018 to January 2022.

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The intraocular malignancies, which mostly originate from the retina and uvea, exhibit a high incidence of blindness and even death. Uveal melanoma (UM) and retinoblastoma (RB) are the most common intraocular malignancies in adults and children, respectively. The high risks of distant metastases lead to an extremely poor prognosis.

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Metabolic reprogramming and immune escape play a major role in tumorigenesis. Increasing number of studies have shown that reprogramming of glutamine metabolism is a putative determinant of the anti-tumor immune response in the tumor microenvironment (TME). Usually, the predatory uptake of glutamine by tumor cells in the TME results in the limited utilization of glutamine by immune cells and affects the anti-tumor immune response.

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Rationale: PTTM is a rare but fatal disease, characterized by endothelial intimal proliferation and pulmonary hypertension due to micro-vascular remodeling. In view of the poor prognosis, new effective strategies are urgently required.

Patient Concerns And Diagnosis: A 51-year-old woman was admitted to hospital for acute progressive dyspnea and dry cough.

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Few studies have reported whether nutrients in the tumor microenvironment can regulate the expression of PD-L1. Since tumor cells are often situated in a low-glutamine environment, we investigated PD-L1 expression under glutamine deprivation in bladder cancer cells. PD-L1 expression and the activation of the EGFR/MEK/ERK/c-Jun signaling pathway under glutamine deprivation were investigated by qPCR, Western blot, and immunofluorescence analyses.

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Infected cavitating pulmonary infarction is a rare complication of pulmonary embolism with a high mortality rate. Surgical excision for this complication has been used in past decades. Abrupt cavitation and a large oval-shaped lung abscess caused by acute thromboembolic pulmonary infarction during anticoagulation are rare.

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