Publications by authors named "Dapeng Lei"

Rationale And Objectives: Patients with Hypopharyngeal Squamous Cell Carcinoma (HSCC) exhibiting lymphovascular invasion (LVI) frequently demonstrate a poor prognosis. We aim to determine whether contrast-enhanced computed tomography (CECT)-derived intratumoral and peritumoral radiomic features could predict the LVI status of HSCC patients.

Materials And Methods: 166 patients with pathologically confirmed HSCC were included in this study, 47 of whom were LVI positive.

View Article and Find Full Text PDF
[Castleman disease in the parapharyngeal space: a case report].

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi

December 2024

Castleman's disease is a group of heterogeneous lymphoproliferative disorders with unclear etiology and pathogenesis.This article reports a case of Castleman's disease of the parapharyngeal space, with a comprehensive literature review of the clinical feature and typing, pathologic diagnosis, treatment, and prognosis of the disease.This case is a unicentric type, which is clinically characterized by significant enlargement of lymph nodes without systemic symptoms.

View Article and Find Full Text PDF
Article Synopsis
  • - Hypopharyngeal and laryngeal cancers, part of head and neck squamous cell carcinoma (HNSCC), have low survival rates and high recurrence, highlighting the need for better treatment strategies against metastasis and poor prognosis.
  • - The study discovered that TRIM47, an E3 ubiquitin ligase, is upregulated in hypopharyngeal cancer tissues and is linked to worse survival outcomes; it stabilizes vimentin (a protein) through a specific type of ubiquitination.
  • - TRIM47 enhances cancer cell growth and spread by promoting vimentin's role, making it a potential biomarker for early diagnosis and a target for future therapies in treating hypopharyngeal and
View Article and Find Full Text PDF
Article Synopsis
  • Hypopharyngeal squamous cell carcinoma (HSCC) is a dangerous head and neck tumor with a grim outlook, and there’s limited research on its spatial transcriptomics—an advanced technique for analyzing gene expression in tissue samples.
  • This study performed spatial transcriptomic analysis on tumor and nearby tissues from four HSCC patients to identify the roles of different cell types, using specific markers for epithelial, fibroblast, and immune cells.
  • Results indicated that fibroblasts might play a role in tumor growth, immune infiltration is lower in metastatic lymph nodes compared to primary tumors, and certain favorable prognosis markers were significantly down-regulated in tumor and metastatic tissues.
View Article and Find Full Text PDF

Purpose: Obesity is commonly linked to both adenotonsillar hypertrophy (ATH) and allergic disorders, in which the roles of adipokines are not fully illuminated. This study aims to investigate the levels of leptin and adiponectin and their associations with allergic sensitization in pediatric ATH.

Methods: Serum levels of specific immunoglobulin E (IgE), leptin and adiponectin were quantified in 35 controls and 111 ATH children, in which 54 were non-atopic and 57 were atopic.

View Article and Find Full Text PDF

Emerging light-driven micro/nanorobots (LMNRs) showcase profound potential for sophisticated manipulation and various applications. However, the realization of a versatile and straightforward fabrication technique remains a challenging pursuit. This study introduces an innovative bulk heterojunction organic semiconductor solar cell (OSC)-based spin-coating approach, aiming to facilitate the arbitrary construction of LMNRs.

View Article and Find Full Text PDF

Background: The cellular origin of hypopharyngeal diseases is crucial for further diagnosis and treatment, and the microenvironment in tissues may also be associated with specific cell types at the same time. Normal adjacent tissues (NATs) of hypopharyngeal carcinoma differ from non-tumor-bearing tissues, and can influenced by the tumor. However, the heterogeneity in kinds of disease samples remains little known, and the transcriptomic profile about biological information associated with disease occurrence and clinical outcome contained in it has yet to be fully evaluated.

View Article and Find Full Text PDF

Employing an automated monitoring system (AMS) for data acquisition offers benefits, such as reducing the workload, in the kinetic study of suspended photocatalytic batch reactions. However, the current methods in this field tend to narrowly focus on the substrate and often overlook the optical characteristics of both the mixture and solid particles. To address this limitation, in this study, we propose a novel AMS based on online circulatory spectrophotometry (OCS) and incorporate debubbling, aeration, and segmented flow (DAS), named DAS-OCS-AMS.

View Article and Find Full Text PDF

Background: Obstructive sleep apnea (OSA) is considered to be an important contributor of dyslipidemia. However, there lacks observational studies focusing on the potential effect of lipid management on OSA risk. Thus, we aimed to investigate the genetic association of lipid-modifying therapy with risk of OSA.

View Article and Find Full Text PDF

Background: The occult lymph node metastasis (LNM) of laryngeal squamous cell carcinoma (LSCC) affects the treatment and prognosis of patients. This study aimed to comprehensively compare the performance of the three-dimensional and two-dimensional deep learning models, radiomics model, and the fusion models for predicting occult LNM in LSCC.

Methods: In this retrospective diagnostic study, a total of 553 patients with clinical N0 stage LSCC, who underwent surgical treatment without distant metastasis and multiple primary cancers, were consecutively enrolled from four Chinese medical centres between January 01, 2016 and December 30, 2020.

View Article and Find Full Text PDF

Trace amine-associated receptor 1 (TAAR1) senses a spectrum of endogenous amine-containing metabolites (EAMs) to mediate diverse psychological functions and is useful for schizophrenia treatment without the side effects of catalepsy. Here, we systematically profiled the signaling properties of TAAR1 activation and present nine structures of TAAR1-Gs/Gq in complex with EAMs, clinical drugs, and synthetic compounds. These structures not only revealed the primary amine recognition pocket (PARP) harboring the conserved acidic D for conserved amine recognition and "twin" toggle switch for receptor activation but also elucidated that targeting specific residues in the second binding pocket (SBP) allowed modulation of signaling preference.

View Article and Find Full Text PDF

Background: The malignant characteristics of cancer depend not only on intrinsic properties of cancer cells but also on the functions of infiltrating immune cells. In this study, we aimed to investigate the functional landscape of immune cells in head and neck squamous cell carcinoma (HNSCC).

Methods: We employed single-sample gene set enrichment analysis to examine the immunophenotypes of HNSCC based on 29 immune cell functions (ICFs) in TCGA and GSE65858 datasets.

View Article and Find Full Text PDF
Article Synopsis
  • Spatialomics is an emerging field in biotechnology that complements single-cell sequencing by revealing the spatial distribution of cells in tissue samples.
  • This research area focuses on understanding how the position of cells affects diseases, particularly in head and neck tumors.
  • Recent advancements in spatialomics have contributed to better insights into disease mechanisms, target discovery, and drug development for head and neck cancer.
View Article and Find Full Text PDF

To compare the clinical effect of transaxillary non-inflatable endoscopic surgery and traditional open thyroid surgery in the treatment of PTC. A retrospective analysis was performed on 342 patients with PTC treated in the Otorhinolaryngology Department of Qilu Hospital of Shandong University from December 2020 to December 2022. There were 73 males and 269 females, aged 16-72 years, who underwent unilateral non-inflatable transaxillary endoscopic thyroid surgery(endoscopic group) and unilateral traditional open thyroid surgery(open group).

View Article and Find Full Text PDF

Inflammatory myofibroblastic tumor is a rare tumor of mesenchymal origin. A case of intratracheal inflammatory myofibroblastic tumor in a male child was reported. The clinical characteristics, diagnosis, treatment and prognosis of the disease were reviewed based on the literature, and a differential diagnosis between inflammatory myofibroblastic tumor and hamartoma was performed to ultimately confirm the nature of the tumor in the child.

View Article and Find Full Text PDF

Head neck squamous cell carcinoma (HNSCC) is one of the most common malignant tumors which ranks the sixth incidence in the world. Although treatments for HNSCC have improved significantly in recent years, its recurrence rate and mortality rate remain high. Myosin genes have been studied in a variety of tumors, however its role in HNSCC has not been elucidated.

View Article and Find Full Text PDF

Background: Human hypopharygeal squamous cell carcinoma (HSCC) is a common head and neck cancer with a poor prognosis in advanced stages. The occurrence and development of tumor is the result of mutual influence and co-evolution between tumor cells and tumor microenvironment (TME). Tumor immune microenvironment (TIME) refers to the immune microenvironment surrounding tumor cells.

View Article and Find Full Text PDF

Head and neck squamous cell carcinoma (HNSC) is the most common malignant tumor of head and neck. Due to the insidious nature of HNSC and the lack of effective early diagnostic indicators, the development of novel biomarkers to improve patient prognosis is particularly urgent. In this study, we explored and validated the correlation between cytochrome P450 family 4 subfamily F member 12 (CYP4F12) expression levels and HNSC progression using data from The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO) datasets and collected patient samples.

View Article and Find Full Text PDF

Background: Hypopharyngeal squamous cell cancer (HSCC) is one of the most malignant tumors of the head and neck. It is not easy to detect in the early stage due to its hidden location; thus, lymph node metastasis is highly likely at diagnosis, leading to a poor prognosis. It is believed that epigenetic modification is related to cancer invasion and metastasis.

View Article and Find Full Text PDF

IGF2BPs belongs to a family of conserved RNA-bound oncoembryonic proteins that play a crucial part in various aspects of cell function, such as cell migration, morphology, metabolism, proliferation and differentiation. Recent studies have shown that IGF2BPs play a role as a member of m6A reader. m6A is the most abundant modification in RNA epigenetics, which is closely related to a family of RNA-binding proteins.

View Article and Find Full Text PDF

Hypopharyngeal squamous cell carcinoma (HSCC) is a kind of head and neck squamous cell carcinoma (HNSCC) with poor prognosis. Metabolic reprogramming may regulate the tumor microenvironment (TME) by adapting quickly to cellular stress and regulating immune response, but its role in HSCC has not been reported. We used the nCounter Metabolic Pathways Panel to investigate metabolic reprogramming, cellular stress, and their relationship in HSCC tissues and adjacent normal tissues.

View Article and Find Full Text PDF

Objectives: To investigate the role of CT radiomics for preoperative prediction of lymph node metastasis (LNM) in laryngeal squamous cell carcinoma (LSCC).

Methods: LSCC patients who received open surgery and lymphadenectomy were enrolled and randomized into primary and validation cohorts at a ratio of 7:3 (325 vs. 139).

View Article and Find Full Text PDF

Radiomics, a technique for quantitative analysis of tumor imaging information through high-throughput extraction, uses a non-invasive way to capture a large number of internal heterogeneity characteristics of tumors, providing imaging basis for tumor staging and typing, tumor invasion site and distant metastasis, postoperative induction chemotherapy and prognosis, and providing new ideas and new thinking for the field of personalized precision medicine of tumors. This review aims to briefly summarize the latest research progress of imaging omics in the diagnosis and treatment design of head and neck tumor, and to discuss the research progress of constructing the treatment plan and prognosis evaluation model of hypopharyngeal cancer based on imaging omics, and to predict and forecast its development direction and clinical application.

View Article and Find Full Text PDF

LncRNAs are reported to be involved in tumor proliferation, invasion and metastasis, and are considered as potential biomarkers and therapeutic targets for human cancer, including head and neck cancer. In this study, we screened the differentially low-expressed linc01513 by bioinformatic to detect its expression and biological effect on nasopharyngeal carcinoma (NPC). MTT was used to evaluate the effect of linc01513 on the proliferation of NPC cells.

View Article and Find Full Text PDF

Hypopharyngeal squamous cell carcinoma (HSCC) accounts 95% of hypopharyngeal cancer, which is characterized by high early metastasis rate and poor prognosis. It is reported that circular RNA is involved in the occurrence and development of cancer; however, the role of circRNA in hypopharyngeal cancer has little been investigated. We performed hypopharyngeal carcinoma circRNA microarray and qRT-PCR verification.

View Article and Find Full Text PDF