Publications by authors named "YiHong Ling"

Article Synopsis
  • The EC-CRT-001 phase II study showed that combining toripalimab with chemoradiotherapy can effectively treat patients with locally advanced esophageal squamous cell carcinoma (ESCC), with a follow-up showing 3-year overall survival (OS) and progression-free survival (PFS) rates of 44.8% and 35.7%, respectively.
  • Among the 42 patients, those who did not achieve a complete clinical response (CR) had significantly worse outcomes compared to those who did, indicating the importance of achieving CR in treatment success.
  • The study also found that patients experiencing immune-related adverse events (irAEs) had higher CR rates and better PFS, suggesting a potential link between these events
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Article Synopsis
  • * Whole-exome sequencing of 51 ESCC tumors before and after NCRT showed two patient groups: 13 had all pre-treatment clones disappear (clonal extinction) while 9 retained some (clonal persistence), affecting their prognosis.
  • * Clone-extinct patients had more immune activity and better T cell interactions post-NCRT, while clone-persistent patients had a higher diversity of genomic mutations but worse overall outcomes.
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Background: Microvascular invasion (MVI) is a significant pathological feature in hepatocellular carcinoma (HCC), adjuvant hepatic arterial infusion chemotherapy (a-HAIC) and adjuvant transcatheter arterial chemoembolization (a-TACE), are commonly used for HCC patients with MVI. This study aims to evaluate the efficacies of two adjuvant therapies after surgical treatment for HCC, compare them, and identify the significant factors.

Methods: Clinical data from two randomized controlled trials involving HCC patients with MVI after surgical treatment were retrospectively reviewed.

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Purpose: This study aimed to establish a nomogram using routinely available clinicopathological parameters to predict the pathological response in patients with locally advanced gastric cancer (LAGC) undergoing neoadjuvant treatment.

Materials And Methods: We conducted this study based on the ongoing Neo-CRAG trial, a prospective study focused on preoperative treatment in patients with LAGC. A total of 221 patients who underwent surgery following neoadjuvant chemotherapy (nCT) or neoadjuvant chemoradiotherapy (nCRT) at Sun Yat-sen University Cancer Center between June 2013 and July 2022 were included in the analysis.

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Article Synopsis
  • Perioperative chemotherapy remains the standard treatment for locally advanced gastric cancer, and a study (NEOSUMMIT-01) is exploring the effectiveness of adding a PD-1 inhibitor called toripalimab to this regimen.
  • In the study, patients were randomly assigned to receive either standard chemotherapy or a combination of toripalimab and chemotherapy, with results showing that the latter group had a significantly higher rate of tumor regression (44.4% vs. 20.4%).
  • Additionally, the combination treatment led to a greater rate of complete pathological response and had similar rates of surgical complications and treatment-related side effects compared to chemotherapy alone.
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Extranodal natural killer/T-cell lymphoma (NKTCL) is an aggressive type of lymphoma associated with Epstein-Barr virus (EBV) and characterized by heterogeneous tumor behaviors. To better understand the origins of the heterogeneity, this study utilizes single-cell RNA sequencing (scRNA-seq) analysis to profile the tumor microenvironment (TME) of NKTCL at the single-cell level. Together with in vitro and in vivo models, the study identifies a subset of LMP1 malignant NK cells contributing to the tumorigenesis and development of heterogeneous malignant cells in NKTCL.

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Purpose: Vessels encapsulating tumor clusters (VETC) is a novel vascular pattern structurally and functionally distinct from microvascular invasion (MVI) in hepatocellular carcinoma (HCC). This study aims to explore the prognostic value of VETC in patients receiving hepatic arterial infusion chemotherapy (HAIC) for unresectable HCC.

Methods: From January 2016 to December 2017, 145 patients receiving HAIC as the initial treatment for unresectable HCC were enrolled and stratified into two groups according to their VETC status.

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Article Synopsis
  • Sporadic synchronous colorectal cancer (SCRC) involves multiple primary colorectal tumors diagnosed at once in patients without hereditary risks, yet there's limited understanding of its genomic landscape for effective treatment.
  • A study analyzed 103 tumor samples from 51 SCRC patients through whole-exome sequencing and found significant genetic inconsistencies across tumors, highlighting higher prevalence of tumor mutation burden high (TMB-H) and microsatellite-instability high (MSI-H) compared to solitary CRC cases.
  • SCRC tumors that evolve neutrally show greater intratumoral diversity and potentially better patient outcomes, prompting a need for improved targeted and immunotherapy strategies based on these unique molecular characteristics.
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Background: Programmed death-1 (PD-1) inhibitor is effective for colorectal cancer (CRC) with deficient mismatch repair (dMMR) or high microsatellite instability (MSI-H). We aimed to explore its effects on CRCs and colonic polyps in Lynch syndrome (LS) patients.

Methods: LS patients with CRC who had evaluable tumours and received at least 2 cycles of PD-1 inhibitors were retrospectively included.

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Background: The etiologic link between human papillomavirus (HPV) and lung cancer is still controversial.

Methods: PubMed and Cochrane databases were searched from inception to December 2020 to identify studies on the infection of HPV in lung cancer. We calculated the attributable proportion of HPV in lung cancer by pooling the infection of cases positive for both HPV DNA and biomarkers of carcinogenesis that may be induced by HPV (E6/E7 messenger RNA or p16INK4a).

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Background: The lipid metabolism status of patients with colorectal cancer (CRC) has not been understood comprehensively. The present study investigated the characteristics of lipid metabolism parameters in CRC patients with or without metastases and identified the independent prognostic factors of long-term prognosis.

Methods: The clinicopathological data of 231 CRC patients along with 259 formalin-fixed paraffin-embedded samples with or without liver or lung metastasis were retrieved and stained for apolipoprotein B (apoB) immunohistochemistry (IHC) in our center.

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Background: Epstein-Barr virus-associated gastric cancer (EBVaGC) exhibits unique histological characteristics within the immune-cell-rich microenvironment, but the role of tertiary lymphoid structure (TLS) in EBVaGC is not yet fully understood.

Methods: We retrospectively identified EBVaGC from 8517 consecutive GC cases from the two top cancer centers in China. Furthermore, we evaluated the prognostic value of TLS in 148 EBVaGC patients from our institute and then validated it in an external cohort (76 patients).

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Purpose: To report the efficacy and safety of postoperative adjuvant hepatic arterial infusion chemotherapy (HAIC) with 5-fluorouracil and oxaliplatin (FOLFOX) in hepatocellular carcinoma (HCC) patients with microvascular invasion (MVI).

Patients And Methods: In this randomized, open-label, multicenter trial, histologically confirmed HCC patients with MVI were randomly assigned (1:1) to receive adjuvant FOLFOX-HAIC (treatment group) or routine follow-up (control group). The primary end point was disease-free survival (DFS) by intention-to-treat (ITT) analysis while secondary end points were overall survival, recurrence rate, and safety.

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Background: Neoadjuvant chemoradiotherapy (neoCRT) followed by surgery is the most common approach for locally advanced resectable esophageal squamous cell carcinoma (ESCC) patients. How neoCRT impacts ESCC tumor immune microenvironment (TIME) has not been fully understood.

Methods: Single-cell RNA sequencing (scRNA-seq) was conducted to examine the neoCRT-driven cellular and molecular dynamics in 8 pre- and 7 post-neoCRT ESCC samples from 8 male patients.

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Background: Tertiary lymphoid structures (TLSs) play key roles in tumour adaptive immunity. However, the prognostic value and molecular properties of TLSs in oesophageal squamous cell carcinoma (ESCC) patients have not been studied.

Methods: The prognostic values of the presence and maturation status of tumour-associated TLSs were determined in 394 and 256 ESCC patients from Sun Yat-sen University Cancer Center (Centre A) and the Cancer Hospital of Shantou University Medical College (Centre B), respectively.

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Objective: This study aimed to develop an artificial intelligence model for predicting the pathological complete response (pCR) to neoadjuvant chemoradiotherapy (nCRT) of locally advanced rectal cancer (LARC) using digital pathological images.

Background: nCRT followed by total mesorectal excision (TME) is a standard treatment strategy for patients with LARC. Predicting the PCR to nCRT of LARC remine difficulty.

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Article Synopsis
  • The study created a deep learning model to predict DNA mismatch repair status in colorectal cancer using whole-slide images.
  • The model was validated with over 400 images from various sources and utilized advanced techniques like domain adaptation and multiple instance learning.
  • It achieved high accuracy with a dual-threshold strategy, allowing over half of the patients to avoid unnecessary testing while maintaining excellent sensitivity and specificity.
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Bone metastasis is the main site of metastasis and causes the most deaths in patients with prostate cancer (PCa). The mechanism of bone metastasis is complex and not fully clarified. By RNA sequencing and analysing key pathways in bone metastases of PCa, we found that one of the most important characteristics during PCa bone metastasis was G1/S transition acceleration caused by low protein levels of p16INK4a (p16).

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Influx of activated neutrophils into the lungs is the histopathologic hallmark of acute lung injury (ALI) after intestinal ischemia/reperfusion (I/R). Neutrophils can release DNA and granular proteins to form cytotoxic neutrophil extracellular traps (NETs), which promotes bystander tissue injury. However, whether NETs are responsible for the remote ALI after intestinal I/R and the mechanisms underlying the dissemination of harmful gut-derived mediators to the lungs are unknown.

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Background: To compare the treatment effectiveness and safety among transarterial infusion chemotherapy (TAI) with FOLFOX regimen, transarterial chemoembolization (TACE), and sorafenib in patients with BCLC stage C hepatocellular carcinoma (HCC).

Methods: The data of consecutive patients with BCLC stage C HCC treated with TAI, TACE, or sorafenib from January 2015 to December 2018 at three centers were retrospectively analyzed. Propensity-score matched (PSM) analysis was pairwise performed to reduce selection bias.

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Article Synopsis
  • Traditional clinical variables are not enough to predict recurrence in patients with hepatocellular carcinoma (HCC) undergoing surgery due to tumor heterogeneity, but the novel vascular pattern known as vessels encapsulating tumor clusters (VETC) can indicate biological aggressiveness.
  • The study aimed to create a model using VETC and microvascular invasion (MVI) to provide personalized estimates of recurrence-free survival (RFS) for HCC patients based on data from 498 individuals from multiple centers in China.
  • Key findings showed that VETC, MVI, tumor number, and maximum tumor size were independent predictors of RFS, and a nomogram and risk score were developed to help estimate RFS more accurately compared to existing progn
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The effect of anti-programmed cell death 1 (PD-1) antibody in Epstein-Barr virus-associated gastric cancer (EBVaGC) was debatable, and no predictive biomarkers for efficacy have been reported. Public reports on anti-PD-1 antibody monotherapy-treated EBVaGC with available programmed death ligand-1 (PD-L1) expression status were summarized and analyzed. Relevance with clinicopathologic characteristics of PD-L1 expression by immunohistochemistry was analyzed in 159 patients diagnosed with EBVaGC.

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Immune checkpoint blockade has demonstrated remarkable efficacy in hepatocellular carcinoma (HCC) but is also commonly accompanied by immune-related adverse events (irAEs). However, the association between irAEs and antitumor efficacy in HCC patients remains unknown. All patients with HCC treated with anti-PD-1 antibodies from July 2018 to November 2019 were analyzed and divided into different groups according to their irAEs' status.

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