Publications by authors named "Da-hong Zhang"

Drug local delivery system that directly supply anti-cancer drugs to the tumor microenvironment (TME) results in excellent tumor control and minimizes side effects associated with the anti-cancer drugs. Immune checkpoint inhibitors (ICIs) have been the mainstay of cancer immunotherapy. However, the systemic administration of ICIs is accompanied by considerable immunotherapy-related toxicity.

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Purpose: To compare the long-term clinical and oncologic outcomes of laparoscopic partial nephrectomy (LPN) and laparoscopic radical nephrectomy (LRN) in patients with renal cell carcinoma (RCC) > 4 cm.

Methods: We retrospectively reviewed the records of all patients who underwent LPN or LRN in our department from January 2012 to December 2017. Of the 151 patients who met the study selection criteria, 54 received LPN, and 97 received LRN.

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Objective: This study explores the feasibility and safety of the transvesical approach of robotic-assisted radical prostatectomy a bladder neck and prostate combined longitudinal incision.

Methods: From June 2017 to May 2021, 41 patients aged from 51 to 69 years underwent the transvesical approach of robotic-assisted radical prostatectomy a bladder neck and prostate combined longitudinal incision (L-RALP). The prostate volume was 22.

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Introduction: Intraductal carcinoma of the prostate (IDC-P) is a special pathological type of prostate cancer that is highly aggressive with poor prognostic outcomes.

Objective: To establish an effective predictive model for predicting IDC-P.

Methods: Data for 3185 patients diagnosed with prostate cancer at three medical centers in China from October 2012 to April 2022 were retrospectively analyzed.

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Tumor-infiltrating lymphocytes (TILs) have been extensively explored as prognostic biomarkers and cellular immunotherapy methods in cancer patients. However, the prognostic significance of TILs in bladder cancer remains unresolved. We evaluated the prognostic effect of TILs in bladder cancer patients.

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Hypoperfusion is the main cause of anastomotic leakage (AL) following colorectal surgery. The conventional method for evaluating anastomotic perfusion is to observe color change and active bleeding of the resection margin of the intestine and the pulsation of mesenteric vessels. However, the accuracy of this method is low, which may be due to insufficient observation time.

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Metabolic reprogramming of cancer cells is a hallmark of cancer, in which the polar metabolites involving aerobic glycolysis, pentose phosphate pathway (PPP), tricarboxylic acid (TCA) cycle, and glutaminolysis play a crucial role in the occurrence and development of cancer. Therefore, targeted analysis of the polar metabolites in these pathways is of great value for understanding cancers, finding diagnostic biomarkers, and identifying therapeutic targets. However, it is still challenging to directly determine polar metabolites in these pathways without derivatization due to their diverse chemical properties, isomers, and strong polarity.

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The purpose of this study was to investigate the predictors of metastatic patterns of upper tract urothelial carcinoma (UTUC) and to analyze the surgical outcomes of different metastatic patterns of UTUC. Data on patients with UTUC from 2010 to 2017 were retrieved from the Surveillance, Epidemiology, and End Results Program (SEER) database. Kaplan-Meier analysis was applied to compare the patients' survival distributions.

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Purpose: To determine whether di-n-butyl phthalate (DBP) promotes the occurrence of bladder cancer (BCa) and explore the action of DBP acts on BCa cells at the cellular and molecular levels.

Methods: MTT and Transwell assays were used to investigate the tumorigenic actions of DBP on BCa cells. Second-generation sequencing was used to identify differences in gene expression before and after DBP treatment.

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Article Synopsis
  • The study compares transurethral laser surgery and open prostatectomy for treating large-sized benign prostatic hyperplasia (BPH) and aims to evaluate their efficacy and safety based on existing literature from 2000 to 2020.
  • The meta-analysis included 12 studies with a total of 1,514 patients, revealing that the transurethral laser group had shorter hospital stays, less catheterization time, and a significantly lower incidence of blood transfusions compared to the open prostatectomy group.
  • Both techniques are effective and safe, but transurethral laser surgery may be preferable due to reduced blood loss and shorter recovery times.
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Regulatory T (Treg) cells maintain immune homeostasis by inhibiting abnormal/overactive immune responses to both autogenic and nonautogenic antigens. Treg cells play an important role in immune tolerance, autoimmune diseases, infectious diseases, organ transplantation, and tumor diseases. Treg cells have two functional characteristics: T cell anergy and immunosuppression.

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Background: With the development of minimally invasive surgery technology, patients with bladder cancer are increasingly receiving laparoscopic radical cystectomy (LRC) or robotic-assisted radical cystectomy (RARC) treatment. The main purpose of this study was to compare the long-term outcomes of bladder cancer patients treated with LRC versus RARC.

Methods: A retrospective study to identify patients with clinical stage Ta/T1/Tis to T3 bladder cancer who underwent RARC or LRC has been performed.

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Background: Urinary bladder lymphangioma is a rare and benign lesion that is often causes symptoms related to irritation and urinary tract obstruction. Because a lymphangioma may resemble a true neoplasm of the urinary bladder clinically, the lesion must be removed for accurate histologic diagnosis and to rule out malignancy.

Case Presentation: We present a case of a 40-year-old female who was evaluated for painless gross hematuria.

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Article Synopsis
  • - Bladder cancer is a major health issue for Chinese men, being the second most common malignant tumor in the genitourinary system, with high rates of recurrence and poor prognosis over the last 30 years due to insufficient early diagnostic techniques.
  • - Current therapies primarily involve an intravesical approach, but they are not very effective because of challenges in targeting tumors efficiently.
  • - This text offers an overview of research on targeting peptides that could enhance the effectiveness of intravesical theranostic techniques for bladder cancer, covering areas like peptide screening, targeting mechanisms, and their applications in preclinical settings.
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The objective of this study was to investigate the expression of vesicular amine transporter 1 (VAT1) in hepatocellular carcinoma (HCC) and its prognostic value and to analyze the relationship between VAT1 expression and clinicopathological features of HCC. First, several public databases, including Ualcan, GEPIA, and Oncomine, were used to analyze the expression of VAT1 in HCC and normal liver tissue. Next, 330 HCC and 190 normal liver samples were stained by immunohistochemistry and scored.

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Aims: The aim of this study to determine the expression of MMP-28 in bladder urothelial carcinoma and to analyze the correlation between MMP-28 and the clinicopathological characteristics of human bladder carcinoma, and its relationship with patient prognosis.

Methods: A total of 491 surgically resected bladder cancer samples and 80 normal tissue adjacent to the tumor were stained by immunohistochemistry. The expression of MMP-28 in these samples was quantitated, and the value of MMP-28 as a marker of bladder cancer and prognosis was assessed.

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Advancing knowledge of the transcriptome has revealed that circular RNAs (circRNAs) are widely expressed and evolutionarily conserved molecules that may serve relevant biological roles. More interesting is the accumulating evidence which demonstrates the implication of circRNAs in diseases, especially cancers. This revelation has helped to form the rationale for many studies exploring their utility as clinical biomarkers.

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Background: Cutaneous lichen amyloidosis (CLA) has been reported in some multiple endocrine neoplasia type 2A (MEN 2A) families affected by specific germline RET mutations C634F/G/R/W/Y or V804M, as a characteristic of the clinical manifestation in ‘MEN 2A with CLA’, one of four variants of MEN 2A, which was strictly located in the scapular region of the upper back.

Patient Findings: This study reports a large south-eastern Chinese pedigree with 17 individuals carrying the MEN 2A-harboring germline C611Y (c.1832G>A) RET mutation by Sanger sequencing.

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Objective: To induce hypospadias in male rat offspring by maternal exposure to di-n-butyl phthalate (DBP) during late pregnancy and further investigate its mechanisms.

Methods: We randomly divided 20 pregnant rats into a DBP exposure and a control group, the former treated intragastrically with DBP while the latter with soybean oil at 750 mg per kilogram of the body weight per day from gestation days (GD) 14 to 18. On postnatal day (PND) 1, we recorded the incidence rate of hypospadias and observed the histopathological changes in the genital tubercle of the hypospadiac rats.

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After publication of this work [1] it was noticed the author - Jie Wang's name was in the wrong order. The original article was corrected. The publisher apologises for this error.

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Background: Renal artery aneurysm (RAA) is rare and its incidence in the general population remains elusive. There have been few reports on the repair of multiple aneurysms conducted with the Da Vinci robot-assisted surgical platform (Intuitive Surgical Inc., Sunnyvale, CA, USA), especially for those located in renal artery primary bifurcations.

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Renal oncocytoma (RO) can rarely present with a multilocular or tubulocystic growth pattern that may cause significant diagnostic difficulties with a variety of cystic renal cell carcinomas (RCC). Distinguishing these RO variants from their many RCC mimickers is critical because of its typical benign clinical course. Herein, we report a case of RO with extensive tubulocystic architectures on a 42-year-old female patient and discuss the clinicopathologic characterizations of this unusual RO variant with an emphasis on the wide spectrum of differential diagnoses of a variety of primary or secondary renal tumors that are featuring of both oncocytic cell changes and tubulocystic growth patterns.

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Article Synopsis
  • - Deletion of tumor suppressor genes, or oncosuppressors, is common in cancer genomes, but efforts to restore their function clinically have seen limited success.
  • - Alternative therapeutic strategies like "synthetic lethality" and "therapeutic vulnerability" can be utilized, as shown in a study by Liu et al, where the loss of both p53 and POLR2A in colon cancer cells made them especially sensitive to POLR2A inhibition.
  • - The article aims to explore various anticancer opportunities arising from oncosuppressor loss and highlights the need for further research in this area to improve cancer treatment.
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Competing endogenous RNAs (ceRNAs) are transcripts that can regulate each other at post-transcription level by competing for shared miRNAs. CeRNA networks link the function of protein-coding mRNAs with that of non-coding RNAs such as microRNA, long non-coding RNA, pseudogenic RNA and circular RNA. Given that any transcripts harbouring miRNA response element can theoretically function as ceRNAs, they may represent a widespread form of post-transcriptional regulation of gene expression in both physiology and pathology.

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Background: Cyclin D1 (CCND1) is critical in the transition of the cell cycle from the G1 to S phases, and unbalanced cell cycle regulation is a hallmark of carcinogenesis. Numerous epidemiological studies have evaluated the association between the CCND1 A870G polymorphism and the risk of prostate cancer (PCa). However, these studies have yielded conflicting results.

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