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Utilizing a 3D Printed Laparoscopic Nissen Fundoplication Model to Shorten a Resident's Learning Curve

Laparoscopic Nissen fundoplication (LNF) requires extensive training for surgical proficiency, with significant early learning curve complications. A ...

To summarize the experience in nutritional support for the management of duodenocutaneous fistula.

[Nutritional therapy of duodenocutaneous fistula].

To investigate the effect of early enteral nutrition (EEN) supplemented with glutamine on postoperative intestinal mucosal barrier function of patients with gastric carcinoma.

[Effect of early enteral nutrition supplemented with glutamine on postoperative intestinal mucosal barrier function in patients with gastric carcinoma].

To investigate the prognostic significance of tumor necrosis factor receptor (TNFR),-associated factor 6 (TRAF6),-and ubiquitin in gastric cancer patients.

Expression of TRAF6 and ubiquitin mRNA in skeletal muscle of gastric cancer patients.

To explore the efficacies of neoadjuvant chemotherapy plus nutritional supports for gastric cancer complicated with pyloric obstruction.

[Efficacies of neoadjuvant chemotherapy plus nutritional support in advanced gastric cancer complicated with pylori obstruction].

To evaluate the long-term outcomes of pylorus-vagus-preserving partial gastrectomy for early gastric cancer in middle third of stomach.

[Application of pylorus-vagus-preserving gastrectomy in early gastric cancer in middle third of stomach].

Cyclooxygenase-2 (COX2) and tumor-associated macrophages (TAMs) are associated with invasion, angiogenesis, and poor prognosis in many human cancers. However, the role of TAMs in human gastric cancer (GC) remains elusive. In the present study, we first measured COX2 expression and TAM infiltration in human GC tissues using double immunohistochemical staining. Then, we indirectly cocultured M2-polarized macrophages derived from human THP-1 cells with GC cells as an in vitro model. Transwell assays, siRNA transfection, treatment with a COX2 inhibitor and Western blotting were used to investigate the relationship among TAMs, invasion and COX2 expression as well as the underlying molecular mechanism. Double IHC staining showed that TAMs were aggregated near GC tumor nests and had high COX2 expression; moreover, the number of TAMs that infiltrated the tumor nest was correlated with the depth of invasion, COX2 expression and poor prognosis in human GC. In an in vitro assay, after treatment with phorbol myristate acetate (PMA), the THP-1 cells differentiated into M2 macrophages and induced COX2/MMP9-dependent invasiveness in GC cells. Pretreatment of GC cells with COX2 siRNA or a COX2 inhibitor (Celecoxib) can negate these promoting effects. The results of this study and those of our previous studies indicate that coculture with M2-polarized macrophages can induce the COX2-dependent release of matrix metalloproteinase-9 (MMP9), which subsequently increases the invasiveness of GC cells. Our data may provide a basis for targeting TAMs or for polarizing TAMs through immune regulation to halt GC progression, which could soon become a nonsurgical treatment for human gastric cancer.

Tumor-associated macrophages induce invasion and poor prognosis in human gastric cancer in a cyclooxygenase-2/MMP9-dependent manner.

The aims of this study were to compare the short-term outcomes of natural orifice specimen extraction surgery (NOSES) and conventional laparoscopic surgery (CLAPS) for colorectal tumours and to evaluate the safety and feasibility of NOSES in colorectal resection.

The Comparison of Laparoscopic Colorectal Resection with Natural Orifice Specimen Extraction versus Mini-Laparotomy Specimen Extraction for Colorectal Tumours: A Systematic Review and Meta-Analysis of Short-Term Outcomes.

Due to its rarity, duodenal papillary carcinoma (DPC) is seldom studied as a unique disease and no specific molecular features or treatment guidelines are provided.

PBRM1 presents a potential prognostic marker and therapeutic target in duodenal papillary carcinoma.

Gastric cancer is a prevalent malignancy with unfavorable prognosis partially resulting from its high metastasis rate. Clarifying the molecular mechanism of gastric cancer occurrence and progression for improvement of therapeutic efficacy and prognosis is needed. The study tended to delineate the role and regulatory mechanism of aldo-keto reductase 1B10 (AKR1B10) in gastric cancer progression.

Aldo-keto Reductase 1B10 Restrains Cell Migration, Invasion, and Adhesion of Gastric Cancer via Regulating Integrin Subunit Alpha 5.

Gastric cancer (GC) is among the deadliest malignancies and the third leading cause of cancer-related deaths worldwide. Galectin-1 (Gal-1) is a primary protein secreted by cancer-associated fibroblasts (CAFs); however, its role and mechanisms of action of Gal-1 in GC remain unclear. In this study, we stimulated GC cells with exogenous human recombinant galectin-1 protein (rhGal-1) to investigate its effects on the proliferation, migration, and resistance to cisplatin.

Galectin-1 Promotes Gastric Carcinoma Progression and Cisplatin Resistance Through the NRP-1/c-JUN/Wee1 Pathway.

Three-dimensional (3D) printed surgical models provide an excellent surgical training option to closely mimic real operations to teach medical students who currently rely largely on visual learning aided with simple suturing pads. There is an unmet need to create simple to complex surgical training programs suitable for medical students. A prospective cohort study was conducted on a group of 16 6th year students. They were randomly divided into two groups for suture training on a basic training pad or on unique 3D-printed intestinal anastomosis models. After 4 weeks of open and laparoscopic surgical training, exams were performed on the standardized 3D-printed model at the end of each stage to assess surgical performance including surgical time and scores. Both groups had similar skills before the start of each stage. In stage 1, both groups showed comparable learning performance, but the 3D model group performed better in Exam 1. In stage 2, the 3D model group took more time but showed significant improvements and outperformed the pad group in Exam 2 in both performance scores and time. Post-training questionnaires indicated increased interest in surgery and technical training among students using 3D models. Realistic 3D-printed models benefit surgical training, expected to become integral in teaching operative skills and techniques to medical students.

A randomized cohort study on the use of 3D printed models to enhance surgical training in suturing techniques.

Correction: Robot-assisted versus conventional laparoscopic antireflux surgery: a retrospective cohort analysis of perioperative and medium-term outcomes.

Article	Year
[Nutritional therapy of duodenocutaneous fistula]. Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery\| PubMed ID: 20878576	2010
[Effect of early enteral nutrition supplemented with glutamine on postoperative intestinal mucosal barrier function in patients with gastric carcinoma]. Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery\| PubMed ID: 21713704	2011
Expression of TRAF6 and ubiquitin mRNA in skeletal muscle of gastric cancer patients. Journal of experimental & clinical cancer research : CR\| PubMed ID: 23013936	2012
[Efficacies of neoadjuvant chemotherapy plus nutritional support in advanced gastric cancer complicated with pylori obstruction]. Zhonghua yi xue za zhi\| PubMed ID: 24762686	2014
[Application of pylorus-vagus-preserving gastrectomy in early gastric cancer in middle third of stomach]. Zhonghua yi xue za zhi\| PubMed ID: 26081212	2015
Tumor-associated macrophages induce invasion and poor prognosis in human gastric cancer in a cyclooxygenase-2/MMP9-dependent manner. American journal of translational research\| PubMed ID: 31632572	2019
The Comparison of Laparoscopic Colorectal Resection with Natural Orifice Specimen Extraction versus Mini-Laparotomy Specimen Extraction for Colorectal Tumours: A Systematic Review and Meta-A... Journal of oncology\| PubMed ID: 32454825	2020
PBRM1 presents a potential prognostic marker and therapeutic target in duodenal papillary carcinoma. Clinical and translational medicine\| PubMed ID: 36178086	2022
Aldo-keto Reductase 1B10 Restrains Cell Migration, Invasion, and Adhesion of Gastric Cancer via Regulating Integrin Subunit Alpha 5. The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology\| PubMed ID: 37823316	2023
Galectin-1 Promotes Gastric Carcinoma Progression and Cisplatin Resistance Through the NRP-1/c-JUN/Wee1 Pathway. Journal of gastric cancer\| PubMed ID: 38960889	2024
A randomized cohort study on the use of 3D printed models to enhance surgical training in suturing techniques. Scientific reports\| PubMed ID: 39753693	2025
Correction: Robot-assisted versus conventional laparoscopic antireflux surgery: a retrospective cohort analysis of perioperative and medium-term outcomes. Journal of robotic surgery\| PubMed ID: 40772990	2025

Junfeng Hu

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