KLF5 promotes apoptosis induced by phorbol ester as an effector of the autocrine factor TNFα in LNCaP prostate cancer cells.

Abstract:

:Krüppel-like factor 5 (KLF5) is frequently deleted and inactivated in prostate cancer, and exerts tumor-suppressing function in prostate cancer cells. However, the function of KLF5 in the apoptosis of prostate cancer cells remains unclear. In the present study, the effect of KLF5 on phorbol 12-myristate 13-acetate (PMA)-induced apoptosis was investigated in prostate cancer LNCaP cells. It was demonstrated that PMA induced the expression of KLF5 at the mRNA and protein level. To identify whether KLF5 regulates the activity of the downstream pathway, stable KLF5 knockdown or overexpression cell lines were constructed with lentivirus harboring shRNA targeting KLF5 or full-length KLF5 in LNCaP cells. Knockdown of KLF5 significantly decreased PMA-induced apoptosis, while cell apoptosis was significantly increased following KLF5 overexpression compared with the corresponding control groups. Consistently, expression of cleaved poly(ADP-ribose) polymerase and caspase-3 induced by PMA was decreased following KLF5 knockdown and increased following KLF5 overexpression. Using the control medium from cells treated with PMA, it was demonstrated that KLF5 is required for the control medium to induce apoptosis. c-Jun N-terminal kinase (JNK) activity is essential for the apoptosis induced by PMA. It was revealed that knockdown of KLF5 decreased, while overexpression of KLF5 increased the phosphorylation of JNK induced by PMA and control medium treatment. Furthermore, inhibition of tumor necrosis factor α (TNFα) decreased KLF5 expression and significantly decreased cell apoptosis induced by PMA, and control medium. This data indicates that KLF5 is essential for the apoptosis induced by PMA in LNCaP prostate cancer cells. Furthermore, KLF5 is essential for activity of the autocrine factor TNFα, which is secreted by cells treated with PMA and mediates the function of PMA-induced apoptosis through regulating the activity of JNK signaling pathway. These results provide novel insights into the complexity of the signaling pathways regulating apoptosis in prostate cancer cells, which could aid in the development of novel treatments for patients with prostate cancer.

journal_name

Oncol Lett

journal_title

Oncology letters

authors

Shi Q,Jia J,Hui K,Gao Y,Xu S,Guan B,Tang X,Wang X,He D,Guo P

doi

10.3892/ol.2017.6293

subject

Has Abstract

pub_date

2017-08-01 00:00:00

pages

1847-1854

issue

2

eissn

1792-1074

issn

1792-1082

pii

OL-0-0-6293

journal_volume

14

pub_type

杂志文章
  • Overexpression of Rhophilin Rho GTPase-binding protein 2 promotes hepatocellular carcinoma.

    abstract::Hepatocellular carcinoma is a serious public health problem in China. The mortality rate associated with the majority of cancer types has decreased as a result of targeted therapy. However, the mortality rates associated with hepatocellular carcinoma have not improved; therefore, the identification of new molecular ta...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2020.12245

    authors: Yuan B,Bo W,Feng X,Hu Y,Zeng J

    更新日期:2020-12-01 00:00:00

  • Identification and validation of tumor microenvironment-related genes of prognostic value in lung adenocarcinoma.

    abstract::Lung adenocarcinoma (LUAD) is a major subtype of non-small cell lung cancer. Despite significant progress in its diagnosis and treatment, the mortality and morbidity rate of LUAD remains high worldwide. The aim of the present study was to perform a systematic investigation of the tumor microenvironment (TME) and ident...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2020.11735

    authors: Yuan J,Yuan B,Zeng L,Liu B,Chen Y,Meng X,Sun R,Lv X,Wang W,Yang S

    更新日期:2020-08-01 00:00:00

  • Role of high mobility group A1 and body mass index in the prognosis of patients with breast cancer.

    abstract::The high mobility group A1 (HMGA1) protein is associated with poor prognosis in patients with a wide range of cancers. However, the affect of HMGA1 on the risk of mortality from breast cancer (BC) has not been fully characterized. In the present retrospective multiple center study, the HMGA1 expression level was deter...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.6963

    authors: Zhang S,Lei R,Wu J,Shan J,Hu Z,Chen L,Ren X,Yao L,Wang J,Wang X

    更新日期:2017-11-01 00:00:00

  • Simultaneous occurrence of keratocystic odontogenic tumor and ameloblastoma in the mandible: A case report.

    abstract::Keratocystic odontogenic tumors (KCOTs) and ameloblastomas are benign odontogenic tumors that primarily occur in the molar region of the mandible. However, it is uncommon for these tumors to arise simultaneously in a patient's jaw. The present study reported the diagnostic process and features of a rare case of the si...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2015.3323

    authors: Gamoh S,Akiyama H,Tominaga K,Nakajima M,Kakudo K,Tanaka A,Shimizutani K

    更新日期:2015-08-01 00:00:00

  • Comparison of K-ras mutations in lung, colorectal and gastric cancer.

    abstract::K-ras is involved in the EGFR pathway that regulates cell survival, motility and proliferation, as well as angiogenesis and metastasis. It is also essential for carcinogenesis. The K-ras mutation status can be used to predict the therapeutic efficacy of targeted drugs such as cetuximab. The aim of this study was to co...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2014.2205

    authors: Peng N,Zhao X

    更新日期:2014-08-01 00:00:00

  • Ruanjian Sanjie decoction exhibits antitumor activity by inducing cell apoptosis in breast cancer.

    abstract::Traditional Chinese medicine, based on theories developed and practiced for >2,000 years, is one of the most common complementary and alternative types of medicine currently used in the treatment of patients with breast cancer. Ruanjian Sanjie (RJSJ) decoction, is composed of four herbs, including Ban xia (Pinellia te...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.5832

    authors: Zhao X,Zhao J,Hu R,Yao Q,Zhang G,Shen H,Yagüe E,Hu Y

    更新日期:2017-05-01 00:00:00

  • Early risk warning system for distant metastasis of hepatitis B virus-associated hepatocellular carcinoma with portal vein tumor thrombus.

    abstract::Portal vein tumor thrombus (PVTT) promotes distant metastasis of hepatocellular carcinoma (HCC), which increases the mortality of patients with HCC and PVTT. The aim of the present study was to develop an early risk warning system for distant metastasis of hepatitis B virus (HBV)-associated primary HCC (HBV-HCC) with ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2020.11423

    authors: Li M,Zhao Y,Liu X,Zhang S,Jiang Y,Yang Z

    更新日期:2020-04-01 00:00:00

  • Ex vivo hepatectomy and partial liver autotransplantation for hepatoid adenocarcinoma: A case report.

    abstract::We previously reported the case of a 56-year-old male who underwent surgical treatment for gastric hepatoid adenocarcinoma and splenic metastasis. The present study reports the case of the same patient who underwent successful ex vivo hepatectomy and partial liver autotransplantation. Computed tomography scans demonst...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2015.3041

    authors: Wang FQ,Lu Q,Yan J,Peng YY,Xie CR,Su YJ,Zhou JY,Wang BL,Zhao WX,Wang XM,Bie P,Yin ZY

    更新日期:2015-05-01 00:00:00

  • Cripto-1 overexpression in U87 glioblastoma cells activates MAPK, focal adhesion and ErbB pathways.

    abstract::Discovering the underlying signalling pathways that control cancer cells is crucial for understanding their biology and to develop therapeutic regimens. Thus, the aim of the present study was to determine the effect of Cripto-1 on pathways controlling glioblastoma (GBM) cell function. To this end, changes in protein p...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2019.10626

    authors: Alowaidi F,Hashimi SM,Alqurashi N,Wood SA,Wei MQ

    更新日期:2019-09-01 00:00:00

  • Overexpression of DJ-1 and HSP90α, and loss of PTEN associated with invasive urothelial carcinoma of urinary bladder: Possible prognostic markers.

    abstract::DJ-1 and HSP90α play a significant role in the progression of various types of cancer and are known to be associated with phosphatase and tensin homolog deleted on chromosome 10 (PTEN), PI3K-p110α and pAkt, the signaling molecule proteins from the phosphatidylinositol 3-kinase (PI3K) pathway. However, the expression o...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2011.522

    authors: Lee H,Choi SK,Ro JY

    更新日期:2012-03-01 00:00:00

  • Long non-coding RNA CACNA1G-AS1 promotes calcium channel protein expression and positively affects human keloid fibroblast migration.

    abstract::Keloids are a type of benign hyperplasia that cause dermatologic dysfunction and esthetic deformity by invading adjacent normal tissues. Little is known about their etiology, therefore, they are a challenge to treat using plastic surgery. In a previous study, it was demonstrated that the expression of the long non-cod...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2018.8717

    authors: Li Y,Liang X,Wang P,Long X,Wang X,Meng Z

    更新日期:2018-07-01 00:00:00

  • Schwannoma of the colon: A case report and review of the literature.

    abstract::Colonic schwannomas are rare gastrointestinal mesenchymal tumors, and only a limited number of cases has been reported. The occurrence of these tumors is less common in the large intestine than in the stomach. The present study reports a case of colonic schwannoma in a 62-year-old female patient with no specific sympt...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4271

    authors: Wang WB,Chen WB,Lin JJ,Xu JH,Wang JH,Sheng QS

    更新日期:2016-04-01 00:00:00

  • Cardamonin as a potential treatment for melanoma induces human melanoma cell apoptosis.

    abstract::2',4'-dihydroxy-6'-methoxychalcone (cardamonin) is a natural compound with anti-proliferative effects on several cancer types including nasopharyngeal carcinoma. The effects of cardamonin on melanoma cells are unknown. The present study investigated the anti-proliferative effect of cardamonin on human melanoma cell li...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2019.11242

    authors: Yue Y,Liu L,Liu P,Li Y,Lu H,Li Y,Zhang G,Duan X

    更新日期:2020-02-01 00:00:00

  • Expression of GLUT1 is associated with increasing grade of malignancy in non-invasive and invasive urothelial carcinomas of the bladder.

    abstract::Glucose Transporter 1 (GLUT1) belongs to the expanding mammalian facilitative glucose transporter family. Elevated GLUT1 protein expression has been observed in the majority of urothelial carcinomas, with various effects on clinicopathological parameters. Whereas malignant cells have an accelerated metabolism with inc...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2011.394

    authors: Reis H,Tschirdewahn S,Szarvas T,Rübben H,Schmid KW,Grabellus F

    更新日期:2011-11-01 00:00:00

  • Enhanced expression of hydroxylated ceramide in well-differentiated endometrial adenocarcinoma.

    abstract::Based on our previous analysis of neutral glycolipids in the human endometrium, the present authors already reported that the concentrations of glucosylceramide, lactosylceramide and globotriaosylceramide (Gb3Cer), in which both fatty acids and sphingosines in the ceramides are hydroxylated, exhibit a marked increase ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.5410

    authors: Tajima T,Miyazawa M,Hayashi M,Asai S,Ikeda M,Shida M,Hirasawa T,Iwamori M,Mikami M

    更新日期:2017-01-01 00:00:00

  • CT findings of sclerosing stromal tumor of the ovary: A report of two cases and review of the literature.

    abstract::Sclerosing stromal tumor (SST) of the ovary, which was first described by Chalvardjian and Scully in 1973, is a rare ovarian neoplasm, occurring predominantly in young women. The most common clinical symptom in patients with SST is menstrual irregularities. Microscopically, the tumor is characterized by the presence o...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4441

    authors: Tian T,Zhu Q,Chen W,Wang S,Sui W,Wu J

    更新日期:2016-06-01 00:00:00

  • Downregulation of regulator of G protein signaling 2 expression in breast invasive carcinoma of no special type: Clinicopathological associations and prognostic relevance.

    abstract::Changes in the expression of regulator of G protein signaling 2 (RGS2) are involved in the genesis and development of a number of malignancies. However, the association between changes in the expression of RGS2 and breast invasive carcinoma of no special type (BIC-NST) remains unknown. The present study found that, in...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.7351

    authors: Wang C,Ye Q,Cao Y,Tan J,Wang F,Jiang J,Cao Y

    更新日期:2018-01-01 00:00:00

  • Induction of antigen-specific cytotoxic T-cell response by dendritic cells generated from ecto-mesenchymal stem cells infected with an adenovirus containing the MAGE-D4a gene.

    abstract::The present study aimed to investigate the feasibility of using ecto-mesenchymal stem cell (EMSC)-derived dendritic cells (DCs) for glioma immunotherapy following infection by a recombinant adenovirus containing the melanoma-associated antigen D4a (MAGE-D4a) gene. The ex vivo cultured EMSCs were infected by the adenov...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4306

    authors: Hu S,Li B,Shen X,Zhang R,Gao D,Guo Q,Jin Y,Fei Z

    更新日期:2016-04-01 00:00:00

  • Effect of synchronous solitary bone metastasectomy and lung cancer resection on non-small cell lung cancer patients.

    abstract::Lung cancer is the most frequent cause of cancer-associated mortality among men and women globally. The skeleton is one of the most common metastatic sites. The majority of patients exhibiting bone metastases are treated using systemic therapy or symptom-based palliative approaches without surgery. The present study a...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4190

    authors: Zhao T,Gao Z,Wu W,He W,Yang YI

    更新日期:2016-03-01 00:00:00

  • Characterization of topoisomerase II α and minichromosome maintenance protein 2 expression in anal carcinoma.

    abstract::The present study aimed to ascertain the significance of topoisomerase II α (TOP2A) and minichromosome maintenance protein (MCM) 2 expression in anal carcinoma. A total of 75 anal lesions were retrieved from the files of the Department of Pathology of Barretos Cancer Hospital (Barretos, Brazil) in order to verify the ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.5650

    authors: Scapulatempo-Neto C,Veo C,Fregnani JHTG,Lorenzi A,Mafra A,Melani AGF,Loaiza EAA,Rosa LAR,de Oliveira CM,Levi JE,Longatto-Filho A

    更新日期:2017-03-01 00:00:00

  • Hsa-miR-137, hsa-miR-520e and hsa-miR-590-3p perform crucial roles in Lynch syndrome.

    abstract::The aim of the present study was to identify the differentially expressed microRNAs (DEMs) between Lynch syndrome (LS) and the normal colonic (N-C) control samples, predict the target genes (TGs) and analyze the potential functions of the DEMs and TGs. The miRNA expression dataset GSE30454, which included data of 13 L...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4816

    authors: Zhou C,Li J,Li J,Wan Y,Li T,Ma P,Wang Y,Sang H

    更新日期:2016-09-01 00:00:00

  • Genetic alterations in epidermal growth factor receptor-tyrosine kinase inhibitor-naïve non-small cell lung carcinoma.

    abstract::Epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (TKIs) are an approved first-line therapy against unresectable or advanced non-small cell lung cancer (NSCLC) harboring EGFR gene activating mutations. However, the majority of tumors develop acquired resistance against EGFR-TKIs and some tumors exhibi...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2020.11524

    authors: Yamaura T,Muto S,Mine H,Takagi H,Watanabe M,Ozaki Y,Inoue T,Fukuhara M,Okabe N,Matsumura Y,Hasegawa T,Osugi J,Hoshino M,Higuchi M,Shio Y,Suzuki H

    更新日期:2020-06-01 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

  • Isoliquiritigenin induces apoptosis of human bladder cancer T24 cells via a cyclin-dependent kinase-independent mechanism.

    abstract::The aim of the present study was to investigate whether an increase in cyclin-dependent kinase 2 (CDK2) activity is involved in apoptosis of human bladder cancer T24 cells induced by isoliquiritigenin (ISL). The viability of T24 cells was estimated using a sulforhodamine B assay. Cell morphological changes were examin...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2017.6159

    authors: Si L,Yang X,Yan X,Wang Y,Zheng Q

    更新日期:2017-07-01 00:00:00

  • Leptomeningeal carcinomatosis as the primary presentation of relapse in breast cancer.

    abstract::Leptomeningeal metastasis (LM) is an uncommon presentation of relapse in breast cancer, which is associated with poor clinical outcomes and poor prognosis. Notably, LM most commonly occurs in breast cancer. The aim of the present review was to investigate the occurrence of LM as the primary presentation of relapse fol...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4745

    authors: Sacco K,Muhammad A,Saleem W,Alshaker H,Monzon L,Islam MR,Pchejetski D

    更新日期:2016-08-01 00:00:00

  • Quantitative assessment of the association between glutathione S-transferase M1 polymorphism and the risk of developing nasopharyngeal cancer.

    abstract::Glutathione S-transferases (GSTs) participate in the detoxification and elimination of electrophilic carcinogens by conjugating them to glutathione. Previous studies have reported a potential association between GSTM1 polymorphism and the risk of developing nasopharyngeal cancer (NPC). However, those findings remain c...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2015.3848

    authors: Zhao Y,Wang Y,Wu X,Wang J,Zhang L,Jia Y,Qi W

    更新日期:2016-01-01 00:00:00

  • Single nucleotide polymorphisms in the HIF-1α gene and chemoradiotherapy of locally advanced rectal cancer.

    abstract::The aim of this study was to investigate the predictive impact of polymorphisms in the HIF-1α gene on the response to chemoradiotherapy (CRT) in rectal cancer. This study included two cohorts of patients with locally advanced rectal cancer receiving long-course CRT. The HIF-1α C1772T (rs11549465), G1790A (rs11549467) ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2012.837

    authors: Havelund BM,Spindler KL,Ploen J,Andersen RF,Jakobsen A

    更新日期:2012-11-01 00:00:00

  • A novel alternative splicing isoform of NF2 identified in human Schwann cells.

    abstract::Vestibular schwannoma (VS) is a benign, slow-growing cranial tumor that originates from the hypertrophy of Schwann cells. The majority of sporadic VS are unilateral, and the mechanisms underlying VS tumorigenesis are not fully understood. The human neurofibromin 2 (NF2) gene encodes the tumor suppressor protein merlin...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2016.4685

    authors: Su F,Zhou Z,Su W,Wang Z,Wu Q

    更新日期:2016-08-01 00:00:00

  • Inhibition of cell migration by ouabain in the A549 human lung cancer cell line.

    abstract::The Na+/K+-ATPase α subunit is highly expressed in malignant cells. Ouabain, a cardioactive glycoside, binds to the Na+/K+-ATPase α subunit and inhibits the activity of Na+/K+-ATPase. In the present study, the effect of ouabain on the migration of A549 cells was analyzed using the wound healing and transwell chamber m...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2013.1406

    authors: Liu N,Li Y,Su S,Wang N,Wang H,Li J

    更新日期:2013-08-01 00:00:00

  • Interferon-α suppresses invasion and enhances cisplatin-mediated apoptosis and autophagy in human osteosarcoma cells.

    abstract::Interferon (IFN)-α is generated in response to viral infections and is used clinically in the therapy of a variety of viral infections and cancers. The present study investigated whether IFN-α could inhibit the invasive ability of osteosarcoma cells using a Matrigel invasion assay. In addition, the osteosarcoma cells ...

    journal_title:Oncology letters

    pub_type: 杂志文章

    doi:10.3892/ol.2013.1762

    authors: Zhao J,Wang M,Li Z,Chen J,Yin Z,Chang J,Gao D,Wang S

    更新日期:2014-03-01 00:00:00