Predictive value of a constructed artificial neural network model for microvascular invasion in hepatocellular carcinoma: A retrospective study.

Background: Microvascular invasion (MVI) is a significant risk factor for recurrence and metastasis following hepatocellular carcinoma (HCC) surgery. Currently, there is a paucity of preoperative evaluation approaches for MVI.

Aim: To investigate the predictive value of texture features and radiological signs based on multiparametric magnetic resonance imaging in the non-invasive preoperative prediction of MVI in HCC.

LncRNA-PANDAR regulates the progression of thyroid carcinoma by targeting miR-637/KLK4.

Thyroid gland carcinoma (TC) originates from follicular or parafollicular thyroid cells and is one of the most common endocrine organ malignancies. To explore the molecular mechanism by which long-chain non-coding RNAs regulate the growth and metastasis of thyroid gland carcinoma, in this study we focused on long non-coding RNAs (lncRNAs) that have been reported to be involved in tumorigenesis. We identified Promoter Region of CDKN 1A antisense DNA damage-activated RNA (PANDAR), which was positively correlated with thyroid gland carcinoma risk.

Association of genetic and immuno-characteristics with clinical outcomes in patients with RET-rearranged non-small cell lung cancer: a retrospective multicenter study.

Background: Rearranged during transfection (RET) has been proven to be a tumorigenic target in non-small cell lung cancers (NSCLCs). In RET-rearranged NSCLCs, molecular features and their impact on prognosis were not well illustrated, and the activity of mainstay therapeutics has not currently been well compared.

Methods: Patients diagnosed with NSCLCs with RET rearrangements were analyzed for concomitant mutations, tumor mutation burden (TMB), PD-L1 expression, T cell receptor repertoire and clinical outcomes with chemotherapy, immune checkpoint inhibitors (ICIs), and multikinase inhibitors (MKIs).

GADD45α sensitizes cervical cancer cells to radiotherapy via increasing cytoplasmic APE1 level.

Radioresistance remains a major clinical challenge in cervical cancer therapy. However, the mechanism for the development of radioresistance in cervical cancer is unclear. Herein, we determined that growth arrest and DNA-damage-inducible protein 45α (GADD45α) is decreased in radioresistant cervical cancer compared to radiosensitive cancer both in vitro and in vivo.

3D Topography of the Young Adult Anal Sphincter Complex Reconstructed from Undeformed Serial Anatomical Sections.

Background: Pelvic-floor anatomy is usually studied by artifact-prone dissection or imaging, which requires prior anatomical knowledge. We used the serial-section approach to settle contentious issues and an interactive 3D-pdf to make the results widely accessible.

Method: 3D reconstructions of undeformed thin serial anatomical sections of 4 females and 2 males (21-35y) of the Chinese Visible Human database.

A population-based study elicits a reverse correlation between age and overall survival in elderly patients with rectal carcinoma receiving adjuvant chemotherapy.

Colorectal cancer is the third most common cancer and the fourth most common cause of cancer-related death globally. This population-based study aimed to explore the predictive factors that affected the overall survival of rectal cancer patients receiving adjuvant chemotherapy plus radical surgery using a Cox proportional hazards modeling approach. A total of 619 patients with rectal cancer who underwent surgery were enrolled between October 2006 and May 2013.

APE1 promotes antioxidant capacity by regulating Nrf-2 function through a redox-dependent mechanism.

APE1 is a multifunctional protein that has recently been implicated in protecting cells from oxidative stress. In the current study, we confirmed that APE1׳s effect on cellular antioxidant capacity is related to its redox activity through the use of an APE1 functional mutant, and we investigated the mechanism through which this multifunctional protein affects the function of the transcription factor Nrf-2 in regulating oxidative stress-induced genes. Using a pair of mutants for both the redox activity and the acetylation-regulated activity of APE1, in vitro assays showed that the redox activity of APE1 is crucial for its nuclear association with Nrf-2 and subsequent activation of Nrf-2׳s transcription of several downstream genes during oxidative challenge.

Genistein alleviates radiation-induced pneumonitis by depressing Ape1/Ref-1 expression to down-regulate inflammatory cytokines.

The aim of the study was to investigate the role of genistein in alleviating radiation-induced pneumonitis(RIP) through down-regulating levels of the inflammatory cytokines by inhibiting the expression of apurinic/apyrimidinic endonuclease 1/redox factor-1 (Ape1/Ref-1). Fifty female C57BL/6J mice (8 weeks old) were randomly divided into a control group, a pure irradiation (IR) group and a genistein + IR group. At the four time points after IR, hematoxylin, and Masson’s trichrome stainings were used to examine the pathological changes and collagen fiber deposition.

FokI polymorphism in vitamin D receptor gene and risk of breast cancer among Caucasian women.

Vitamin D plays a central role in cellular proliferation, apoptosis induction, and tumor growth suppression. The vitamin D receptor (VDR) is a crucial mediator for the cellular effects of vitamin D. A series of epidemiological studies have examined the association between the VDR FokI polymorphism and breast cancer risk, but the findings remain inconclusive.

Human apurinic/apyrimidinic endonuclease 1 translocalizes to mitochondria after photodynamic therapy and protects cells from apoptosis.

Photodynamic therapy (PDT) is an effective therapeutic regime for lung cancer. Mitochondrial functional failure is considered to be one of the most important factors causing cell death after PDT. However, the detailed mechanisms that are involved are still unclear.

Californium-252 brachytherapy combined with external-beam radiotherapy for cervical cancer: long-term treatment results.

Purpose: To observe, by retrospective analysis, the curative effects and complications due to californium-252 (252Cf) neutron intracavitary brachytherapy (ICBT) combined with external-beam radiotherapy (EBRT) in the treatment of cervical cancer.

Methods And Materials: From February 1999 to December 2007, 696 patients with cervical cancer (Stages IB to IIIB) were treated with 252Cf-ICBT in combination of EBRT. Of all, 31 patients were at Stage IB, 104 at IIA, 363 at IIB, 64 at IIIA, and 134 at IIIB.

[Identification of antigenic epitopes of human apurinic/apyrimidinic endonuclease monoclonal antibodies and their application].

Aim: To identify the antigenic epitopes of human apurinic/apyrimidinic endonuclease monoclonal antibodies (hAPE1 mAb) and to establish a one-step ELISA for quantitative measurement of hAPE1.

Methods: APE1-15 polypeptide array was used to identify the antigenic epitopes of hAPE1 mAb. Molsoft.

MicroRNA-224 is upregulated in HepG2 cells and involved in cellular migration and invasion.

Background And Aim: MicroRNAs are a class of small non-coding RNAs that negatively regulate the expression of their target genes. The aim of the present study was to explore the effects of microRNA on biological behaviors of HepG2 cells and further analyze its characteristics.

Methods: We detected different expression profiles of miRNAs in HepG2 and L02 cell lines by microRNA microarray.

[The expression of APE1 and its correlation with prognostic significance after 252Cf radiotherapy in cervical cancer].

Objective: To investigate the expression feature of the apurinic/apyrimidinic endonuclease (APE1) and its correlation with clinicopathology and prognostic significance after 252Cf radiotherapy in cervical cancer.

Methods: The expression of APE1 was detected by immunohistochemistry technique in 89 cases of cervical cancer (treated by 252Cf), 15 cases cervical intraepithelial neoplasia (CIN) and 10 cases of normal cervical tissue, and its association with clinicopathological data as well as prognosis were analyzed.

Results: The expression of APE1 in cervical cancer is higher significantly than that in normal cervical tissue and CIN (P < 0.

[The expression of B-cell translocation gene 2 in diethylnitrosamine-induced primary hepatocellular carcinoma rat model.].

Objective: To investigate the expression and role of B-cell translocation gene 2(BTG2) in the carcinogenesis of hepatocellular carcinoma (HCC).

Methods: Modified Diethylnitrosamine (DEN)-induced primary hepatocellular carcinoma rat model was established. The expression of BTG2, p53 and cyclinD1 was detected by RT-PCR, western blot and immunohistochemistry.

[Follow-up study of clinical effects of californium-252 neutron intracavitary radiotherapy and external beam radiotherapy in endometrial cancer].

Objective: To observe the three year local control rate, overall survival rate, complications and prognostic factors of endometrial cancer treated with (252)Cf neutron intracavitary brachytherapy (ICBT) and external beam radiotherapy (EBRT).

Methods: Forty endometrial cancer patients staged Ib - IVa by the standard of Federation of International Gynecologic Organization (FIGO), who had not received any treatment were enrolled in this study. Treatment schedules were: (252)Cf ICBT, 10 - 13 Gy(i)/fraction per week, the total dose to point A and point F 35 - 45 Gy(i) and 38 - 50 Gy(i) respectively in 4 fractions.

[Combination of external beam radiotherapy and 252Cf neutron intracavitary brachytherapy for cervical cancer].

Objective: To evaluate the curative effect of 252Cf brachytherapy on advanced cervical cancers.

Methods: A total of 77 cervical cancer patients were staged into IIa-IVa according to the standard of International Federation of Gynecology and Obstetrics (FIGO), including 13 cases of stage IIa, 32 of stage IIb, 18 of stage IIIa, 10 of stage IIIb, and 4 of stage IVa. 252Cf brachytherapy was delivered at 8-11 Gy/fraction per week, the total dose of reference point A was 36-45 Gy in 4-5 fractions.