Publications by authors named "Zhu Dexiang"

Background: The incidence of colorectal cancer (CRC) has increased in recent decades, and ranks fourth among males and third among females in China. Surgical resection remains the most important treatment modality for curative intent in CRC. Several studies found that surgeon volumes and specialization appeared to be associated with improved overall survival (OS).

View Article and Find Full Text PDF
Article Synopsis
  • Immune checkpoint inhibitors (ICIs) are important in cancer treatment, but challenges like low response rates and differences in patient responses still need to be addressed.
  • This study explores the major histocompatibility complex (MHC) as a key factor influencing ICI effectiveness by analyzing various types of RNA sequencing data from a large number of cells across multiple cancer types.
  • The findings suggest that the MHC transcriptional feature (MHC.sig) can serve as a universal marker for anti-tumor immunity and may help identify new therapeutic targets, improving predictions for ICI responsiveness and guiding treatment strategies.
View Article and Find Full Text PDF

Background: Colorectal cancers (CRC) with BRAF V600E mutation exhibit limited chemotherapy response and a poor prognosis. Safety and efficacy of the VIC (Vemurafenib/Irinotecan/Cetuximab) regimen in the first-line setting for patients with BRAF V600E-mutated CRC remain undetermined.

Methods: In the prospective cohort study, the untreated, BRAF V600E-mutated, unresectable or metastatic CRC patients were enrolled.

View Article and Find Full Text PDF

Background: Patatin like phospholipase domain containing 8 (PNPLA8) has been shown to play a significant role in various cancer entities. Previous studies have focused on its roles as an antioxidant and in lipid peroxidation. However, the role of PNPLA8 in colorectal cancer (CRC) progression is unclear.

View Article and Find Full Text PDF

Objective: To explore the prognostic impact of contrast-enhanced ultrasound (CEUS) features for initially unresectable colorectal liver metastases (CLMs) in a clinical setting of conversion therapy.

Methods: Between March 2015 and November 2020, consecutive patients with CLMs who received conversion treatment were prospectively enrolled. All participants underwent liver CEUS at baseline.

View Article and Find Full Text PDF

Coiled-Coil Domain-Containing (CCDC) is a large class of structural proteins containing left-handed supercoiled structure. The clinical value and the functional implication of CCDC in colorectal cancer (CRC) remain unknown. Based on the genetic, transcriptional, and clinical data from The Cancer Genome Atlas, five of thirty-six CCDC proteins were differentially expressed in the CRC and associated with the survival of patients with CRC.

View Article and Find Full Text PDF

Background: For patients with initially unresectable colorectal liver metastasis (IU-CRLM) receiving conversion therapy, disease relapse after conversion hepatectomy is common. However, few studies have focused on the assessment and management of relapse following conversion hepatectomy for IU-CRLM.

Methods: In the retrospective cohort study, 255 patients with IU-CRLM received conversion therapy and underwent subsequent R0 resection.

View Article and Find Full Text PDF
Article Synopsis
  • The article DOI: 10.7150/jca.35380 has been identified with inaccuracies that necessitated a correction.
  • The corrections aim to clarify the findings and ensure the information presented is accurate for readers.
  • This update is crucial for maintaining the integrity of the published research and aiding in proper citation.
View Article and Find Full Text PDF

Background: The type of liver resection (anatomical resection, AR or non-anatomical resection, NAR) for colorectal liver metastases (CRLM) is subject to debate. The debate may persist because some prognostic factors, associated with aggressive tumor biological behavior, have been overlooked.

Objective: Our study aimed to investigate the characteristics of patients who would benefit more from anatomical resection for CRLM.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to determine if pre-surgical chemotherapy (before primary tumor resection) could enhance progression-free survival (PFS) in patients with asymptomatic colorectal liver-limited metastases (CRLMs).
  • Patients were divided into two groups: one receiving pre-PTR chemotherapy and the other undergoing immediate surgery; results showed that the chemotherapy group had a median PFS of 10.5 months compared to 9.1 months for the surgery-first group.
  • While the chemotherapy group showed better disease control rates (DCR) and median PFS, other outcomes like overall survival and surgical complications did not significantly differ between the two approaches.
View Article and Find Full Text PDF

Metal-organic frameworks (MOFs), which have well-defined nanoporous skeletons and whose natural structure can work as optical resonant cavities, are emerging as ideal platforms for constructing micro/nanolasers. However, lasing generated from the light oscillating inside a defined MOFs' cavity usually suffers the drawback of the lasing performance being difficult to maintain once the cavity is destroyed. In this work, we report a MOF-based self-healing hydrogel fiber random laser (MOF-SHFRL) that can withstand extreme damage.

View Article and Find Full Text PDF

The presence of lymph node metastasis (LNM) affects treatment strategy decisions in T1NxM0 colorectal cancer (CRC), but the currently used clinicopathological-based risk stratification cannot predict LNM accurately. In this study, we detected proteins in formalin-fixed paraffin-embedded (FFPE) tumor samples from 143 LNM-negative and 78 LNM-positive patients with T1 CRC and revealed changes in molecular and biological pathways by label-free liquid chromatography tandem mass spectrometry (LC-MS/MS) and established classifiers for predicting LNM in T1 CRC. An effective 55-proteins prediction model was built by machine learning and validated in a training cohort (N=132) and two validation cohorts (VC1, N=42; VC2, N=47), achieved an impressive AUC of 1.

View Article and Find Full Text PDF

Objectives: Patients with colorectal liver metastases (CRLM) who underwent hepatic resection after conversion therapy had a high recurrence rate of nearly 90%. Preoperative DEB-TACE has the potential to prevent postoperative recurrence which has not been elucidated. The objective of this study was to evaluate the safety and efficacy of preoperative DEB-TACE.

View Article and Find Full Text PDF

More than 40% of patients with late-stage colorectal cancer (CRC) develop liver metastasis (LM). Which immune cells play important roles in CRC-LM and contribute to the difference between left-sided CRC (LCC) and right-sided CRC (RCC) remain unclear. By single-cell RNA sequencing (scRNA-seq), we not only find that activated B cells are significantly depleted in CRC with LM, but also find a subtype of B cells developed from activated B cells, namely immature plasma cell population alpha (iMPA), highly correlated with metastasis.

View Article and Find Full Text PDF

Background And Objectives: Robotic surgery for rectal cancer is gaining popularity, but persuasive evidence on reducing surgical trauma is still lacking. This study compared robotic and laparoscopic abdominoperineal resections (APRs) for the risk of postoperative complications in low rectal cancer.

Methods: Between December 2013 and 2016, patients with rectal cancer ≤5 cm from anal verge, cT1-T3 N0-1, or ycT1-T3 Nx stage, and no distant metastases were enrolled in a single-center, randomized, controlled trial.

View Article and Find Full Text PDF

The tumor microenvironment (TME) plays a crucial role in tumor progression and metastasis. However, the immune phenotypes of colorectal cancer (CRC) and the underlying immune escape mechanism have not been studied sufficiently. A total of 1802 and 619 CRC samples from the microarray and TCGA cohorts were enrolled, respectively.

View Article and Find Full Text PDF
Article Synopsis
  • - This study investigates the role of ferroptosis markers in predicting outcomes for colorectal cancer (CRC) patients, addressing a gap in existing research.
  • - Researchers analyzed tissue samples using immunohistochemistry and mRNA data, identifying three key genes (GPX4, NOX1, and ACSL4) linked to prognosis; higher GPX4 and lower NOX1 and ACSL4 levels correlate with worse clinical outcomes.
  • - The findings suggest that a low ferroptosis score indicates better survival and treatment responses, with an association between lower scores and higher immune cell infiltration, positioning IFN-γ as a crucial link between ferroptosis and immune response in CRC.
View Article and Find Full Text PDF

Background: Long noncoding RNAs (LncRNA) lead a vital role in colorectal cancer (CRC) development. The infiltrating CD8+ T cell is the main target of immunotherapy. Our study aimed to figure out the potential mechanism of lncRNAs regulating the function of CD8+ T cells in CRC.

View Article and Find Full Text PDF

Acyl-CoA dehydrogenase short-chain (ACADS) is a crucial enzyme in the fatty acid metabolism pathway located in mitochondria. However, the expression level and prognostic value of ACADS in colorectal cancer (CRC) remain unclear. The mRNA and protein expression data of ACADS was obtained from The Cancer Genome Atlas (TCGA), Clinical Proteomic Tumor Analysis Consortium (CPTAC), and Oncomine.

View Article and Find Full Text PDF

Background: Inadequate number of lymph nodes examined was not uncommon. We aimed to assess the clinical role of inadequate number of lymph nodes examined in stage II colon cancer.

Methods: The cancer data used in our study were obtained from the SEER (Surveillance, Epidemiology and End Results) program.

View Article and Find Full Text PDF

Background And Objectives: This study aimed to find the advantages of robotic natural orifice specimen extraction surgery (NOSES) for middle and low rectal cancer, compared with traditional laparoscopic low anterior resection (LAR).

Methods: Patients receiving robotic NOSES or traditional laparoscopic LAR were retrospectively enrolled from 2013-10 to 2019-06, with middle and low rectal cancer, maximum diameter ≤ 5 cm, pT1-3 or ypT1-3 stage, no distant metastases. The baseline of the two groups was balanced using the propensity score matching method.

View Article and Find Full Text PDF

Objective: To investigate the risk factors for postoperative complications and anastomotic leakage after robotic surgery for mid and low rectal cancer and their influence on long-term outcomes.

Methods: A total of 641 patients who underwent radical mid and low rectal cancer robotic surgery at Zhongshan Hospital Fudan University from January 2014 to December 2018 were enrolled in this study. The clinicopathological factors of the patients were collected.

View Article and Find Full Text PDF

The recurrence in colon cancer contributed to great difficulties in diagnostic and therapeutic treatment. Tumor microenvironment (TME) gains increasing attention recently. After univariate Cox analysis on relapse-free survival (RFS) and ESTIMATE analysis, WGCNA was further conducted to determine the TME and relapse-related genes in I-III colon cancer.

View Article and Find Full Text PDF

Colon cancer is one of the most common cancers, great progress was taken place in the treatment of colon cancer, however, the prognostic assessment system remains lagging. Cell cycle plays a vital role in the whole procedure of cancers. In this study, we firstly identified cell cycle-related genes specific in colon cancer.

View Article and Find Full Text PDF

Objective: To evaluate the effects of the addition of preoperative hepatic and regional arterial chemotherapy (PHRAC) on prognosis of stage II and III colorectal cancer (CRC) in a multicenter setting.

Summary Of Background Data: Our previous single-center pilot trial suggested that PHRAC in combination with surgical resection could reduce the occurrence of liver metastasis (LM) and improve survival in CRC patients.

Methods: A prospective multi-center randomized controlled trial was conducted from December 2008 to December 2012 at 5 hospitals in China.

View Article and Find Full Text PDF