A tale of two trials: The impact of 5α-reductase inhibition on prostate cancer (Review).

Abstract:

:The use of 5α-reductase inhibitors (5α-RIs) as prostate cancer chemoprevention agents is controversial. Two large randomized trials, the Prostate Cancer Prevention Trial (PCPT) and the Reduction by Dutasteride of Prostate Cancer Events (REDUCE) Trial, have both shown a decreased incidence of prostate cancer in patients administered with 5α-RIs. Both studies showed, however, an increased risk of higher-grade prostate cancer. Numerous studies have since analyzed the inherent biases in these landmark studies and have used mathematical modeling to estimate the true incidence of prostate cancer and the risk for high-grade prostate cancer in patients undergoing 5α-RI treatment. All primary publications associated with the PCPT and REDUCE studies were reviewed in detail. Pertinent references from the above publications were assessed and a literature search of all published articles associated with PCPT, REDUCE or 5α-RIs as chemopreventative agents through October 2013 was performed using Pubmed/Medline. PCPT and REDUCE both showed a significant decrease in the incidence of prostate cancer following the administration of 5α-reductase inhibitor, as compared with placebo, suggesting that 5α-RIs may be effective agents for prostate cancer chemoprevention. Inherent biases in the design of these two studies may have caused an artificial increase in the number of high-grade cancers reported. Mathematical models, that integrated data from these trials, revealed neither an increased nor decreased risk of high-grade disease when taking these biases into consideration. Moderately strong evidence exists that 5α-RIs may reduce the risk of prostate cancer. PCPT and REDUCE showed a decreased prevalence of prostate cancer in patients taking 5α-RIs. Urologists should have a working knowledge of these studies and discuss with patients the risks and benefits of 5α-RI treatment. Further studies to evaluate the cost-effectiveness of chemoprevention with 5α-RIs and appropriate patient selection are warranted.

journal_name

Oncol Lett

journal_title

Oncology letters

authors

Lacy JM,Kyprianou N

doi

10.3892/ol.2014.2388

subject

Has Abstract

pub_date

2014-10-01 00:00:00

pages

1391-1396

issue

4

eissn

1792-1074

issn

1792-1082

pii

ol-08-04-1391

journal_volume

8

pub_type

杂志文章
  • Downregulation of PDCD4 by miR-21 suppresses tumor transformation and proliferation in a nude mouse renal cancer model.

    abstract::Programmed cell death 4 (PDCD4) is known to suppress neoplastic transformation, cell proliferation and metastasis, and to be downregulated by microRNA-21 (miR-21) in renal cell carcinoma (RCC) cell lines and tissues. The aim of the present study was to investigate the roles of and association between PDCD4 and miR-21 ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.6605

    authors: Yuan H,Xin S,Huang Y,Bao Y,Jiang H,Zhou L,Ren X,Li L,Wang Q,Zhang J

    更新日期:2017-09-01 00:00:00

  • Conjunctival lymphomas in Japanese monozygotic twins: A case report.

    abstract::An individual with a twin who has developed leukemia or non-Hodgkin lymphoma (NHL) has an increased risk of developing the same disease, particularly with monozygotic twins. The few reported pairs of twins who developed NHL had similar primary sites and pathological subtypes. Here, we present the first reported cases ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2018.9723

    authors: Ishibashi N,Sugaya S,Takahashi H,Nishimaki H,Nakanishi Y,Chinen Y,Maebayashi T

    更新日期:2019-01-01 00:00:00

  • Non-invasive detection of nasopharyngeal carcinoma using saliva surface-enhanced Raman spectroscopy.

    abstract::The present study evaluated the use of saliva surface-enhanced Raman spectroscopy (SERS) for the detection of non-invasive nasopharyngeal carcinoma (NPC). SERS measurements were taken from 62 saliva samples, of which 32 were from NPC patients and 30 from healthy volunteers. Notable biochemical Raman bands in the SERS ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2015.3969

    authors: Qiu S,Xu Y,Huang L,Zheng W,Huang C,Huang S,Lin J,Lin D,Feng S,Chen R,Pan J

    更新日期:2016-01-01 00:00:00

  • STAT3-PTTG11 abrogation inhibits proliferation and induces apoptosis in malignant glioma cells.

    abstract::Pituitary tumor transforming gene 1 (PTTG11) is abundantly expressed in glioma. Our previous study demonstrated that the downregulation of PTTG11 gene expression significantly inhibited the proliferation, migration and invasion ability, and increased the apoptosis of SHG44 glioma cells. However, the molecular mechanis...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2020.11867

    authors: Cui L,Xu L,Wang G,Wen J,Luo L,Zhao H,Chen S,Zheng M,Sun C,Jin X,Yang L

    更新日期:2020-10-01 00:00:00

  • Anal function-preserving subtotal intersphincteric resection/partial external sphincteric resection with hybrid 2-port hand-assisted laparoscopic surgery (Mukai's operation) for very low stage I rectal cancer: A case report.

    abstract::A 62-year-old male patient underwent endoscopic mucosal resection (EMR). Additional hybrid 2-port hand-assisted laparoscopic surgery (HALS) (Mukai's operation) was performed for early rectal cancer located at the distal border of the rectum/below the peritoneal reflection (Rb) region [SM massive invasion/ly+/vertical ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2011.327

    authors: Mukai M,Sekido Y,Fukumitsu H,Izumi H,Hoshikawa T,Tajima T,Tobita K,Sadahiro S,Yasuda S,Ogoshi K

    更新日期:2011-09-01 00:00:00

  • Bovine lactoferricin P13 triggers ROS-mediated caspase-dependent apoptosis in SMMC7721 cells.

    abstract::Bovine lactoferricin P13 (LfcinB-P13) is a peptide derived from LfcinB. In the present study, the effect of LfcinB-P13 on the human liver cancer cell line SMMC7721 was investigated in vitro and in vivo. The results of the present study indicate that LfcinB-P13 significantly decreased SMMC7721 cell viability in vitro (...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.5415

    authors: Meng L,Xu G,Li J,Liu W,Jia W,Ma J,Wei D

    更新日期:2017-01-01 00:00:00

  • Effect of targeted silencing of IL-8 on in vitro migration and invasion of SKOV3 ovarian cancer cells.

    abstract::The aim of the study was to determine whether interleukin-8 (IL-8) affects human SKOV3 ovarian cancer cell migration and invasion by targeting silencing of IL-8 expression. Silencing small-interfering RNA (siRNA) targeting IL-8 gene was constructed to infect SKOV3 cells by lentiviral vector. The expression of IL-8 and...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.5511

    authors: Li Y,Liu L,Yin Z,Xu H,Li S,Tao W,Cheng H,Du L,Zhou X,Zhang B

    更新日期:2017-02-01 00:00:00

  • Renin angiotensin system deregulation as renal cancer risk factor.

    abstract::For numerous years, the non-cardiovascular role of the renin-angiotensin system (RAS) was underestimated, but recent studies have advanced the understanding of its function in various processes, including carcinogenesis. Numerous evidence comes from preclinical and clinical studies on the use of antihypertensive agent...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.6826

    authors: Sobczuk P,Szczylik C,Porta C,Czarnecka AM

    更新日期:2017-11-01 00:00:00

  • Inflammation: A key process in skin tumorigenesis.

    abstract::The extremely delicate shift from an inflammatory process to tumorigenesis is a field of major scientific interest. While the inflammation induced by environmental agents has well known underlying mechanisms, less is known concerning the oncogenic changes that follow an inflammatory chronic status in the tissue microe...

    journal_title:Oncology letters

    pub_type: 杂志文章,评审

    doi:10.3892/ol.2018.9735

    authors: Neagu M,Constantin C,Caruntu C,Dumitru C,Surcel M,Zurac S

    更新日期:2019-05-01 00:00:00

  • Expression of KIAA1456 in lung cancer tissue and its effects on proliferation, migration and invasion of lung cancer cells.

    abstract::The expression of human transfer ribonucleic acid (tRNA) methyltransferase 9-like (KIAA1456) protein in lung cancer tissue and its effects on certain genes involved in the proliferation, migration and invasion of lung cancer cells were investigated. Immunohistochemistry was applied to stain lung cancer tissue and adja...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2018.9119

    authors: Wang S,Liu X,Huang J,Zhang Y,Sang C,Li T,Yuan J

    更新日期:2018-09-01 00:00:00

  • Special AT-rich DNA-binding protein-1 expression is associated with liver cancer metastasis.

    abstract::To aim of the present study was to investigate the association between special AT-rich DNA-binding protein-1 (SATB1) expression and liver cancer metastasis. SATB1 mRNA and protein expression in hepatocellular carcinoma tissues was analyzed by immunohistochemistry, and in two hepatocellular cancer cell lines, MHCC-97H ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.5281

    authors: Wu D,Zeng L,Liu F,Zhong Q,Zhang D,Cai C,Zhang W,Wu L,Chen H

    更新日期:2016-12-01 00:00:00

  • Evaluation of photodynamic therapy in adhesion protein expression.

    abstract::Photodynamic therapy (PDT) is a treatment modality that has clinical applications in both non-neoplastic and neoplastic diseases. PDT involves a light-sensitive compound (photosensitizer), light and molecular oxygen. This procedure may lead to several different cellular responses, including cell death. Alterations in ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2014.2149

    authors: Pacheco-Soares C,Maftou-Costa M,DA Cunha Menezes Costa CG,DE Siqueira Silva AC,Moraes KC

    更新日期:2014-08-01 00:00:00

  • Improved antitumor effect of ionizing radiation in combination with rapamycin for treating nasopharyngeal carcinoma.

    abstract::The aim of the present study is to investigate if rapamycin is a radiosensitizer of nasopharyngeal carcinoma (NPC), and to identify which pathways are involved in radiation sensitization. In vitro, using untreated cells as the control, NPC cells were treated with rapamycin, ionizing radiation (IR) or both. Differences...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.6208

    authors: Wang D,Gao L,Liu X,Yuan C,Wang G

    更新日期:2017-07-01 00:00:00

  • Prognostic genes of breast cancer revealed by gene co-expression network analysis.

    abstract::The aim of the present study was to identify genes that may serve as markers for breast cancer prognosis by constructing a gene co-expression network and mining modules associated with survival. Two gene expression datasets of breast cancer were downloaded from ArrayExpress and genes from these datasets with a coeffic...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.6779

    authors: Shi H,Zhang L,Qu Y,Hou L,Wang L,Zheng M

    更新日期:2017-10-01 00:00:00

  • LGR5 promotes the proliferation of colorectal cancer cells via the Wnt/β-catenin signaling pathway.

    abstract::Leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5) is an established cancer stem cell marker and is a target gene of the Wnt/β-catenin signaling pathway, a critical pathway in the process of tumor initiation and growth. In the present study, the mRNA expression levels of LGR5, adenomatous polyposis col...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2015.3144

    authors: Lin YU,Wu T,Yao Q,Zi S,Cui L,Yang M,Li J

    更新日期:2015-06-01 00:00:00

  • Glucagonoma and the glucagonoma syndrome.

    abstract::Glucagonoma is an extremely rare pancreatic α-islet cell tumor and is often accompanied by certain clinical symptoms including necrotizing migratory erythema (NME), diabetes, weight loss and anemia. The objectives of the current review were to discern the clinical features, diagnosis, treatment and prognosis of glucag...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.7703

    authors: Song X,Zheng S,Yang G,Xiong G,Cao Z,Feng M,Zhang T,Zhao Y

    更新日期:2018-03-01 00:00:00

  • T-box 3 overexpression is associated with poor prognosis of non-small cell lung cancer.

    abstract::T-box 3 (Tbx3), a member of the T-box transcription factor family, serves a crucial role in embryonic development and cancer progression. Previous studies have demonstrated the clinical significance of Tbx3 in numerous types of cancer. However, the expression level and pathological function of Tbx3 in non-small cell l...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.5855

    authors: Wu Y,Feng J,Hu W,Zhang Y

    更新日期:2017-05-01 00:00:00

  • Effects of physical activity on systemic oxidative/DNA status in breast cancer survivors.

    abstract::Physical activity offers a paradoxical hormetic effect and a health benefit to cancer survivors; however, the biochemical mechanisms have not been entirely elucidated. Despite the well-documented evidence implicating oxidative stress in breast cancer, the association between health benefits and redox status has not be...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.5449

    authors: Tomasello B,Malfa GA,Strazzanti A,Gangi S,Di Giacomo C,Basile F,Renis M

    更新日期:2017-01-01 00:00:00

  • Expression of aquaporin 5 in primary carcinoma and lymph node metastatic carcinoma of non-small cell lung cancer.

    abstract::Aquaporin 5 (AQP5), a water channel protein, is highly expressed in non-small cell lung cancer (NSCLC) tissues compared with adjacent normal tissues. AQP5 expression in lung cancer tissues is associated with a poor prognosis. The present study aimed to analyze the expression of AQP5 and investigate its role in primary...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2015.3108

    authors: Song T,Yang H,Ho JC,Tang SC,Sze SC,Lao L,Wang Y,Zhang KY

    更新日期:2015-06-01 00:00:00

  • Determining the effect of transforming growth factor-β1 on cdk4 and p27 in gastric cancer and cholangiocarcinoma.

    abstract::Gastric cancer and cholangiocarcinoma are problematic throughout the world due to their destructive malignancy. In attempts to treat cholangiocarcinoma and gastric cancer, researchers often explore the effects of transforming growth factor-β1 (TGF-β1). TGF-β1 plays a crucial role in causing cell cycle arrest and fibro...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2012.1024

    authors: Lee SR,Shin JW,Kim HO,Son BH,Yoo CH,Shin JH

    更新日期:2013-02-01 00:00:00

  • Gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging: A potential utility for the evaluation of regional liver function impairment following transcatheter arterial chemoembolization.

    abstract::The present study aimed to evaluate regional liver function impairment following transcatheter arterial chemoembolization (TACE), assessed by magnetic resonance imaging (MRI) enhanced by gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA). Additionally, this study evaluated the associations betwe...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2014.2826

    authors: Xiao YD,Paudel R,Liu H,Zhang B,Ma C,Zhou SK

    更新日期:2015-03-01 00:00:00

  • Serum levels of cystatin C in elderly lung cancer patients.

    abstract::The purpose of this study was to confirm the correlation between serum levels of cystatin C (Cys-C) and those of creatinine (Cre), the most widely used index of renal function in clinical practice, and to evaluate serum levels of Cys-C, with a particular focus on the effects of aging, body mass index (BMI), C-reactive...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2011.377

    authors: Ohara G,Miyazaki K,Kurishima K,Kagohashi K,Ishikawa H,Satoh H,Hizawa N

    更新日期:2012-02-01 00:00:00

  • Detection of JAK2 V617F mutation increases the diagnosis of myeloproliferative neoplasms.

    abstract::The Janus kinase (JAK)2 gene, which is located on chromosome 9p24, is involved in the signaling transduction pathways of the hematopoietic and immune system. Mutations in the JAK2 gene have served as disease markers for myeloproliferative neoplasms (MPNs). The aim of the present study was to investigate the occurrence...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2014.2801

    authors: Zhang SP,Li H,Lai RS

    更新日期:2015-02-01 00:00:00

  • The role of protein p16INK4a in non-oropharyngeal head and neck squamous cell carcinoma in Southern China.

    abstract::Cyclin-dependent kinase inhibitor 2A (p16INK4a) protein is a surrogate immunohistochemical marker of human papillomavirus infection in oropharynx squamous cell carcinoma (OPSCC). However, the effects of p16INK4a in non-OPSCC require additional analysis. In addition, major gaps remain in the literature, including small...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2018.9353

    authors: Yang H,Cao Y,Li ZM,Li YJ,Jiang WQ,Shi YX

    更新日期:2018-11-01 00:00:00

  • miR-494 promotes progression of retinoblastoma via PTEN through PI3K/AKT signaling pathway.

    abstract::Increasing evidence has indicated that the dysregulation of microRNA (miRNA) occur in the pathogenesis of retinoblastoma (RB). Aim of the present study was to investigate the possible role of miR-494 (miR-494-3p) in RB. It was demonstrated that miR-494 expression was increased in RB tissue samples and cell lines. Also...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2020.11749

    authors: Xu F,Liu G,Wang L,Wang X,Jin X,Bo W

    更新日期:2020-08-01 00:00:00

  • Solanine induced apoptosis and increased chemosensitivity to Adriamycin in T-cell acute lymphoblastic leukemia cells.

    abstract::Solanine is an alkaloid and is the main extract of the traditional Chinese herb, Solanum nigrum Linn. It has been reported that Solanine has anti-inflammatory and antitumor properties. The present study aimed to investigate the antitumor effect of Solanine in Jurkat cells and demonstrate the molecular mechanism of ant...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2018.8229

    authors: Yi YJ,Jia XH,Wang JY,Chen JR,Wang H,Li YJ

    更新日期:2018-05-01 00:00:00

  • Primary non-Hodgkin lymphoma of the right femur and subsequent metastasis to the left femur: A case report and literature review.

    abstract::Non-Hodgkin lymphoma of the bone is rare and typically causes an extensive bone lesion. The present study describes a case of diffuse large B-cell primary non-Hodgkin lymphoma of the bone, which occurred in the right femur, and was initially treated with surgery and chemotherapy. Following a 7-year period of complete ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2018.7895

    authors: Hu JY,Yu D,Wu YH

    更新日期:2018-04-01 00:00:00

  • miR-494 inhibits cervical cancer cell proliferation through upregulation of SOCS6 expression.

    abstract::It is unclear how microRNA (miR)-494 inhibits the proliferation of cervical cancer cells by altering the expression of SOCS6. Therefore, the present study aimed to investigate the molecular mechanism underlying miR-494 regulation of suppressor of cytokine signaling 6 (SOCS6) in human cervical cancer samples and the hu...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.7651

    authors: Cheng L,Kong B,Zhao Y,Jiang J

    更新日期:2018-03-01 00:00:00

  • Abundant expression of HMGB1 in human T-cell lymphotropic virus type I-infected T-cell lines and high plasma levels of HMGB1 in patients with adult T-cell leukemia.

    abstract::High mobility group box 1 (HMGB1) functions as a chromatin-associated nuclear protein and an extracellular signaling molecule. The concentration of HMGB1 protein and the expression of HMGB1 mRNA were analyzed by ELISA and polymerase chain reaction (PCR), respectively. The present study reports high plasma HMGB1 levels...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2014.1851

    authors: Kimura R,Mori N

    更新日期:2014-04-01 00:00:00

  • Clinical outcomes of giant cell tumor of bone treated with bone cement filling and internal fixation, and oral bisphosphonates.

    abstract::Giant cell tumor (GCT) of the bone is a relatively common primary bone tumor. Treatment with simple curettage often results in a high local recurrence rate. Tumor resection and reconstruction with prosthesis or an allograft has a low rate of local recurrence; however, the patient's native joint function becomes signif...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2012.1036

    authors: Yu X,Xu M,Xu S,Su Q

    更新日期:2013-02-01 00:00:00