A cross-sectional study on Chinese oncology nurses' knowledge of bone health among cancer patients.

Objective: To understand the knowledge status, obstacle factors, and management confidence of oncology nurses on the bone health of cancer patients, and in addition to provide reference for establishing bone health knowledge training system for oncology nurses and guiding them to manage bone health of cancer patients.

Methods: A total of 602 nurses engaged in oncology nursing in 6 hospitals in Hebei Province were selected by cluster sampling, and an online anonymous survey was conducted by sending questionnaires to oncology nurses from the Hebei Cancer Prevention and Control Association. The questionnaire was developed by the study team.

A comparative study between two methods of delivery of chemotherapeutic agent in patients with bone and soft tissue sarcoma of lower extremity.

Background: We aimed to compare the effects of peripherally inserted central catheters (PICC) and implantable venous access devices (TIVADs) in terms of complications and shoulder function in patients with malignant bone and soft tissue tumors of the lower extremities.

Methods: We analyzed 65 cases of TIVADs (chest wall) and 65 cases of PICC at the orthopedic department of the Fourth Hospital of Hebei Medical University between June 2019 and December 2021, which were diagnosed with malignant bone tumors or soft tissue tumors of the lower extremities (tumors had to be relatively sensitive to chemotherapy), received regular chemotherapy, with ≥ 14 cycles (42 weeks). The two groups were compared in terms of catheter indwelling time, catheter-related complications, Constant-Murley shoulder function score, and displacement of the position of the catheter end on the catheterization side.

Modulation of Myeloid-derived Suppressor Cells by Long Non-coding RNAs in the Tumor Microenvironment and Tumorigenesis.

Myeloid-derived suppressor cells (MDSCs) constitute an important component in regulating immune responses in cancer. Long non-coding RNAs (lncRNAs) are untranslated functional RNA molecules. There is growing evidence that lncRNAs are involved in modulating transcriptional factors to become complex regulatory networks that regulate the immune function and activity of MDSCs in the immunosuppressive tumor microenvironment.

The Role of mA Modification and mA Regulators in Esophageal Cancer.

N-methyladenosine (mA) modification, the most prevalent RNA modification, is involved in all aspects of RNA metabolism, including RNA processing, nuclear export, stability, translation and degradation. Therefore, mA modification can participate in various physiological functions, such as tissue development, heat shock response, DNA damage response, circadian clock control and even in carcinogenesis through regulating the expression or structure of the gene. The deposition, removal and recognition of mA are carried out by methyltransferases, demethylases and mA RNA binding proteins, respectively.

Metabolic Reprogramming of Myeloid-derived Suppressor Cells in the Tumor Microenvironment.

A large number of studies on the metabolism of immune cells in anti-tumor response have been carried out in recent years. It is proved that metabolic reprogramming can determine the differentiation and functions of immune cells. Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immunosuppressive cells in the tumor microenvironment (TME).

MDM4 polymorphisms associated with the risk but not the prognosis of esophageal cancer in Cixian high-incidence region from northern China.

Aim: The mouse double minute 4 (MDM4) may contribute to tumorgenesis by inhibiting p53 tumor suppressor activity. This study was designed to investigate whether MDM4 polymorphisms could affect susceptibility to esophageal squamous cell carcinoma (ESCC) and the survival of ESCC patients in a population from Cixian high-incidence region of northern China, which has not been explored.

Methods: MDM4 rs1380576 and rs4245739 were genotyped by polymerase chain reaction-ligase detection reaction (PCR-LDR) in 568 ESCC patients and 578 controls.

Gene rs1801552 C/T Polymorphism Increases Susceptibility to Esophageal Squamous Cell Carcinoma but Not to Gastric Cardiac Adenocarcinoma.

Purpose: The present study aimed to investigate whether the single nucleotide polymorphism (SNP) rs1801552 C/T in gene is correlated with the risk of esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA), as a preliminary study.

Methods: The rs1801552 C/T polymorphism was genotyped by the method of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 1316 cancer patients (810 ESCC and 506 GCA) and 1966 controls in north China. We performed two case-control studies, each of which included a population-based set and a hospital-based set.

Targeting myeloid-derived suppressive cells in the tumor microenvironment to enhance the efficacy of cancer immunotherapy.

Myeloid-derived suppressor cells (MDSCs) are immature suppressive cells partly influencing the efficacy of cancer immunotherapies. The crosstalk between MDSCs and immune cells mediates a potently immunosuppressive network within the tumor microenvironment to attenuate the anti-tumor response. Targeting MDSCs could be a potential therapeutic approach to overcome the limitation of immunotherapies.

PARP1 rs1136410 C/C genotype associated with an increased risk of esophageal cancer in smokers.

DNA repair system plays a crucial role in maintaining genomic integrity and stability and in protecting against cancer. Poly(ADP-ribose) polymerase 1 (PARP1) functions as a key enzyme in the base excision repair (BER) pathway. Single nucleotide polymorphism (SNP) that could affect the function or expression of PARP1 gene might be associated with the risk of cancer.

PARP1 Gene Polymorphisms and the Prognosis of Esophageal Cancer Patients from Cixian High-Incidence Region in Northern China.

Objective: Poly (ADP-ribose) polymerase 1 (PARP1), as a key enzyme in the base excision repair pathway, plays a crucial role in tumorigenesis and progression. This study aimed to assess whether polymorphisms of PARP1 gene could be used as predictive biomarkers for the survival of esophageal squamous cell carcinoma (ESCC) patients from Cixian high-incidence region in northern China.

Methods: In 203 ESCC patients with survival information, PARP1 rs1136410 T/C and rs8679 T/C single nucleotide polymorphisms (SNPs) were genotyped by polymerase chain reaction ligase detection reaction (PCR-LDR) method.

Association of cytotoxic T-lymphocyte associated protein 4 gene polymorphisms with the risk and prognosis of oesophageal cancer in a high-incidence region from northern China.

The most important anti-tumour immune response is mediated by T lymphocytes. Cytotoxic T lymphocyte-associated protein 4 (CTLA4) plays a critical role in the immune surveillance against tumours as an inhibitory immune checkpoint molecule of T-cell activation. This study was designed to explore the association of CTLA4 polymorphisms with the susceptibility to oesophageal squamous cell carcinoma (ESCC) and prognosis of patients with ESCC in a high-incidence population from northern China.

CB2 Receptor Agonist JWH133 Activates AMPK to Inhibit Growth of C6 Glioma Cells.

It has been reported that endocannabinoid receptor type 2 (CB2) agonist JWH133 inhibits the growth of C6 glioma cells, but the underlying mechanism has not yet been fully elucidated. We showed that JWH133 inhibited C6 cells growth, reduced cAMP production and inhibited PKA activity through CB2 receptor. Decrease of PKA activity stimulated CaMKKβ, and subsequently elevated phosphorylation of AMPKα at threonine 172 site.

Modulation of cancer immunotherapy efficacy by gut microbiota.

The microbial community is present abundantly in mucosal organs including the intestine, the oral cavity, and the vagina, and is referred to as the microbiota. The microbiota is composed of commensal bacteria and other microorganisms. Intestinal colonization by commensal microorganisms is essential for host physiological functions from the maintenance of barrier homeostasis locally to the regulation of metabolism, hematopoiesis, inflammation, immune development, and other functions systemically.

Phospholipase C ε-1 gene polymorphisms and prognosis of esophageal cancer patients from a high-incidence region in northern China.

Recent genome-wide association studies identified susceptibility loci for esophageal squamous cell carcinoma (ESCC), the most common histological type of esophageal cancer, in the phospholipase C ε-1 gene (). The aim of the present study was to investigate whether polymorphisms of were associated with the prognosis of ESCC patients in a high-incidence region of northern China. The rs2274223 A/G and rs11599672T/G single-nucleotide polymorphisms (SNPs) were genotyped by polymerase chain reaction-ligase detection reaction method in 207 ESCC patients with survival information.

Association of programmed death-1 polymorphisms with the risk and prognosis of esophageal squamous cell carcinoma.

Programmed death-1 (PD-1) is an immunoinhibitory receptor belonging to the CD28 family. This study was designed to investigate the association of PD-1 rs36084323:A>G, rs2227981:C>T, rs2227982:C>T and rs10204525:A>G single nucleotide polymorphisms (SNPs) with the risk and prognosis of esophageal squamous cell carcinoma (ESCC) in a high-incidence population from Northern China. These four SNPs were genotyped by polymerase chain reaction ligase detection reaction (PCR-LDR) method in 584 ESCC patients and 585 healthy controls.

XPG Gene Polymorphisms and the Risk of Gastric Cardia Adenocarcinoma.

Background: Polymorphisms in DNA repair genes can alter an individual's DNA repair capability and contribute to the risk of various cancers.

Aims: This study was designed to evaluate the association of single-nucleotide polymorphisms (SNPs) in the XPG gene with the risk of gastric cardia adenocarcinoma (GCA) in a high-incidence population in northern China.

Methods: Two SNPs from 431 GCA patients and 432 healthy controls were genotyped using the polymerase chain reaction/ligase detection reaction (PCR-LDR) method.

[Inhibitory effect of IL-27 gene on tumor formation activity of Eca109 cells in nude mice and its mechanisms].

Background & Objective: Cytokine-based biotherapy is a hot spot in tumor research. This study was to explore the inhibitory effect of interleukin-27 (IL-27) on tumor formation activity of human esophageal carcinoma cell line Eca109 in nude mice, and investigate its antitumor mechanisms.

Methods: IL-27 gene was transfected into Eca109 cells with retrovirus vector and stable clones were selected by G418.

[Correlation of 53BP1 and p53 polymorphisms to susceptibility to esophageal squamous cell carcinoma and gastric cardiac adenocarcinoma].

Background & Objective: 53BP1 is one of p53-binding proteins, which can enhance the transcriptional activation of p53 and plays a key role in tumor suppression. A single nucleotide polymorphism (SNP) T885G has been found in the promoter of 53BP1. This study was to investigate the correlation of 53BP1 and p53 SNPs to susceptibility to esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA) in a high incidence area of Hebei Province in China.

[Correlations of XRCC5 polymorphisms to genetic susceptibility to esophageal squamous cell carcinoma and gastric cardiac adenocarcinoma in a high incidence region].

Background & Objective: XRCC5 is a repair gene for DNA double-strand break. Its abnormal expression and dysfunction is correlated to tumorigenesis and development. This study was to investigate the correlations of XRCC5 polymorphisms to genetic susceptibility to esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA) in a population of high incidence region, Cixian and Shexian counties of Hebei Province, China.

[Correlation of p73 polymorphisms to genetic susceptibilities to esophageal carcinoma and gastric cardiac carcinoma].

Background & Objective: p73 is a tumor suppressor gene. The two polymorphisms in the non-coding region of the exon 2 of p73 gene, named G4C14-A4T14, can form a stem-loop structure, and may influence p73 expression. This study was to investigate the correlation of p73 G4C14-A4T14 polymorphisms to susceptibilities to esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA) in a high incidence region of Hebei Province.

[Correlation of XPC Ala499Val and Lys939Gln polymorphisms to risks of esophageal squamous cell carcinoma and gastric cardiac adenocarcinoma].

Background & Objective: Xeroderma pigmentosum group C(XPC) gene is involved in nucleotide excision repair (NER). Single nucleotide polymorphisms (SNP) in XPC gene may affect DNA repairing capacity and genetic susceptibility to cancer. This study was to investigate the correlation of XPC exon 8 Ala499Val and exon 15 Lys939Gln SNPs to the susceptibility of esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA) in a population at a high incidence region of Hebei Province.

[Correlations between serine hydroxymethyltransferase1 C1420T polymorphisms and susceptibilities to esophageal squamous cell carcinoma and gastric cardiac adenocarcinoma].

Background & Objective: Serine hydroxymethyltransferase (SHMT), a key enzyme in the folate metabolism, affects gene methylation and DNA synthesis through providing one-carbon units for purine, thymidylate, and methionine. It is closely related to the development and progression of tumors. This study was to investigate the correlations between SHMT1 C1420T single nucleotide polymorphisms (SNP) and susceptibilities to esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA).

[Association of polymorphisms of p21cip1 and p27kip1 genes with susceptibilities of esophageal squamous cell carcinoma and gastric cardiac adenocarcinoma].

Background & Objective: Researches showed that polymorphisms of p21(cip1) and p27(kip1) genes have associations with susceptibilities of breast cancer, lung cancer, prostate cancer, and so on. This study was to investigate the possible association of functional polymorphisms of p21(cip1) and p27(kip1) genes with susceptibilities of esophageal squamous cell carcinoma (ESCC) and gastric cardiac adenocarcinoma (GCA) in a population from a high incidence region in north China.

Methods: The single nucleotide polymorphisms (SNPs) in the 3'-untranslated region of p21(cip1) gene and in codon 109 of p27(kip1) gene were analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 299 ESCC patients, 256 GCA patients, and 437 healthy controls from a high incidence region of north China.