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PRL-3

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https://www.readbyqxmd.com/read/29651360/phosphatase-of-regenerating-liver-3-prl-3-is-overexpressed-in-classical-hodgkin-lymphoma-and-promotes-survival-and-migration
#1
Magnus Aassved Hjort, Håkon Hov, Pegah Abdollahi, Esten Nymoen Vandsemb, Unn-Merete Fagerli, Bendik Lund, Tobias Schmidt Slørdahl, Magne Børset, Torstein Baade Rø
Background: Phosphatase of regenerating liver-3 (PRL-3) is implicated in oncogenesis of hematological and solid cancers. PRL-3 expression increases metastatic potential, invasiveness and is associated with poor prognosis. With this study, we aimed to show a possible oncogenic role of PRL-3 in classical Hodgkin lymphoma (cHL). Methods: PRL-3 expression was measured in 25 cHL patients by immunohistochemistry and gene expression was analyzed from microdissected malignant cells...
2018: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/29556339/prl-3-is-a-potential-glioblastoma-prognostic-marker-and-promotes-glioblastoma-progression-by-enhancing-mmp7-through-the-erk-and-jnk-pathways
#2
Nan Mu, Jintao Gu, Nannan Liu, Xiaochang Xue, Zhen Shu, Kuo Zhang, Tonglie Huang, Chu Chu, Wangqian Zhang, Li Gong, Huadong Zhao, Bo Jia, Dakuan Gao, Lei Shang, Wei Zhang, Qingdong Guo
Purpose: Glioblastoma is the most common and aggressive type of primary brain malignancy and is associated with a poor prognosis. Previously, we found that phosphatase of regenerating liver-3 (PRL-3) was significantly up-regulated in glioblastoma as determined by a microarray analysis. However, the function of PRL-3 in glioblastoma remains unknown. We aimed to investigate the clinical relationship between PRL-3 and glioblastoma, and uncover the mechanisms of PRL-3 in the process of glioblastoma. Methods: PRL-3 expression was evaluated in 61 glioblastoma samples and 4 cell lines by RT-qPCR and immunohistochemistry...
2018: Theranostics
https://www.readbyqxmd.com/read/29514683/a-loss-of-function-genetic-screening-reveals-synergistic-targeting-of-akt-mtor-and-wtn-%C3%AE-catenin-pathways-for-treatment-of-aml-with-high-prl-3-phosphatase
#3
Jianbiao Zhou, Sabrina Hui-Min Toh, Zit-Liang Chan, Jessie Yiying Quah, Jing-Yuan Chooi, Tuan Zea Tan, Phyllis S Y Chong, Qi Zeng, Wee-Joo Chng
BACKGROUND: Protein tyrosine phosphatase of regenerating liver 3 (PRL-3) is overexpressed in a subset of AML patients with inferior prognosis, representing an attractive therapeutic target. However, due to relatively shallow pocket of the catalytic site of PRL-3, it is difficult to develop selective small molecule inhibitor. METHODS: In this study, we performed whole-genome lentiviral shRNA library screening to discover synthetic lethal target to PRL-3 in AML. We used specific small molecule inhibitors to validate the synthetic lethality in human PRL-3 high vs PRL-3 low human AML cell lines and primary bone marrow cells from AML patients...
March 7, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29435006/prl-3-promotes-breast-cancer-progression-by-downregulating-p14-arf-mediated-p53-expression
#4
Hua Xie, Hao Wang
Prior studies have demonstrated that phosphatase of regenerating liver-3 (PRL-3) serves avital function in cell proliferation and metastasis in breast cancer. However, the molecular mechanisms underlying the function of PRL-3 in breast cancer remain unknown. PRL-3 expression was analyzed in 24 pairs of breast cancer and normal tissues using the reverse transcription-quantitative polymerase chain reaction assay. The results of the present study identified that the expression of PLR-3 in breast cancer tissues was increased 4...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29423065/phosphatase-of-regenerating-liver-3-is-expressed-in-acute-lymphoblastic-leukemia-and-mediates-leukemic-cell-adhesion-migration-and-drug-resistance
#5
Magnus A Hjort, Pegah Abdollahi, Esten N Vandsemb, Mona H Fenstad, Bendik Lund, Tobias S Slørdahl, Magne Børset, Torstein B Rø
Phosphatase of regenerating liver-3 (PRL-3/PTP4A3) is upregulated in multiple cancers, including BCR-ABL1- and ETV6-RUNX-positive acute lymphoblastic leukemia (ALL). With this study, we aim to characterize the biological role of PRL-3 in B cell ALL (B-ALL). Here, we demonstrate that PRL-3 expression at mRNA and protein level was higher in B-ALL cells than in normal cells, as measured by qRT-PCR or flow cytometry. Further, we demonstrate that inhibition of PRL-3 using shRNA or a small molecular inhibitor reduced cell migration towards an SDF-1α gradient in the preB-ALL cell lines Reh and MHH-CALL-4...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29207031/prl%C3%A2-3-increases-the-aggressive-phenotype-of-prostate-cancer-cells-in-vitro-and-its-expression-correlates-with-high-grade-prostate-tumors-in-patients
#6
Donna R Edwards, Krzysztof Moroz, Haitao Zhang, David Mulholland, Asim B Abdel-Mageed, Debasis Mondal
The increased expression of phosphatase of regenerating liver-3 (PRL‑3) has been shown to be associated with the aggressive and metastatic phenotype of different solid tumors. However, it is not known whether PRL‑3 plays a similar role in the progression of prostate cancer (PCa). In this study, immunoblot analysis of androgen receptor (AR)-positive PCa lines (LNCaP and LNCaP‑SF) revealed the constitutive cytoplasmic expression of PRL‑3, and stimulation with R1881 (AR agonist) rapidly increased the nuclear translocation of PRL‑3...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29190795/expression-of-phosphatase-of-regenerating-liver-prl-3-is-independently-associated-with-biochemical-failure-clinical-failure-and-death-in-prostate-cancer
#7
Sigve Andersen, Elin Richardsen, Mehrdad Rakaee, Helena Bertilsson, Roy Bremnes, Magne Børset, Lill-Tove Busund, Tobias Slørdahl
BACKGROUND: Prostate cancer (PC) stratification needs new prognostic tools to reduce overtreatment. Phosphatase of regenerating liver (PRL-3) is a phosphatase found at high levels in several cancer types, where its expression is associated with survival. A recent PC cell line study has shown it to be involved in PC growth and migration. METHODS: We used a monoclonal antibody to evaluate the expression of PRL-3 in PC tissue of patients in an unselected cohort of 535 prostatectomy patients...
2017: PloS One
https://www.readbyqxmd.com/read/29051319/ccl26-participates-in-the-prl-3-induced-promotion-of-colorectal-cancer-invasion-by-stimulating-tumor-associated-macrophage-infiltration
#8
Qiusheng Lan, Wei Lai, Yujie Zeng, Lu Liu, Shoufeng Li, Shaowen Jin, Yang Zhang, Xingxi Luo, Heyang Xu, Xiangan Lin, Zhonghua Chu
Both phosphatase of regenerating liver-3 (PRL-3) and tumor-associated macrophages (TAM) influence cancer progression. Whether PRL-3 plays a critical role in colorectal cancer invasion and metastasis by inducing TAM infiltration remains unclear. In the current study, we investigated the effects of chemokine ligand 26 (CCL26) on TAM infiltration and colorectal cancer invasion and the underlying mechanism in colorectal cancer cells by overexpressing or silencing PRL-3. We found that PRL-3 upregulated CCL26 expression correlatively and participated in cell migration, according to the results of gene ontology analysis...
January 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28980126/expression-of-prl-3-regulates-proliferation-and-invasion-of-breast-cancer-cells-in-vitro
#9
Isabel Radke, Martin Götte, Martin Smollich, Ninette Scharle, Ludwig Kiesel, Pia Wülfing
PURPOSE: The protein tyrosine phosphatase PRL-3 plays an important role in cancer cell migration, invasion and metastasis. In breast cancer, PRL-3 is overexpressed in 70-75% of tumors and even more frequently in lymph node metastases. Moreover, PRL-3 overexpression in breast cancer is associated with an adverse disease outcome. Aim of this study was to determine the role of PRL-3 in breast cancer cell proliferation, migration and invasion in vitro. METHODS: PRL-3 mRNA expression was evaluated in 6 breast cancer cell lines by quantitative real-time PCR...
December 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28919938/keep-it-on-the-edge-the-post-mitotic-midbody-as-a-polarity-signal-unit
#10
Pablo Lujan, Teresa Rubio, Giulia Varsano, Maja Köhn
The maintenance of the epithelial architecture during tissue proliferation is achieved by apical positioning of the midbody after cell division. Consequently, midbody mislocalization contributes to epithelial architecture disruption, a fundamental event during epithelial tumorigenesis. Studies in 3D polarized epithelial MDCK or Caco2 cell models, where midbody misplacement leads to multiple ectopic but fully polarized lumen-containing cysts, revealed that this phenotype can be caused by 2 different scenarios: the loss of mitotic spindle orientation or the loss of asymmetric abscission...
2017: Communicative & Integrative Biology
https://www.readbyqxmd.com/read/28791350/prl-3-improves-colorectal-cancer-cell-proliferation-and-invasion-through-il-8-mediated-glycolysis-metabolism
#11
Heyang Xu, Yujie Zeng, Lu Liu, Qian Gao, Shaowen Jin, Qiusheng Lan, Wei Lai, Xingxi Luo, Heng Wu, Yongliang Huang, Zhonghua Chu
Phosphatase of regenerating liver-3 (PRL-3) has been found to be overexpressed in liver metastases of colorectal cancer and rarely expressed in primary tumors, which plays an important role in the metastasis of colorectal cancer cells. Metabolism reprogramming has been found to be a hallmark of cancer cells, and aerobic glycolysis is a metabolic adaption for cancer cells and promotes cell proliferation. However, the association between PRL-3 and glycolysis in colorectal cancer cells is not well understood. In the present study, we explored the association between PRL-3 and glycolysis...
August 2, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28679293/sh3bgrl-as-a-novel-prognostic-biomarker-is-down-regulated-in-acute-myeloid-leukemia
#12
Limei Xu, Mingming Zhang, Hui Li, Wen Guan, Bin Liu, Fengqi Liu, Hehua Wang, Juan Li, Shulan Yang, Xiuzhen Tong, Haihe Wang
Phosphatase PRL-3 expression is positively associated to acute myeloid leukemia (AML) progression and drug resistance. SH3-domain-binding glutamic acid-rich protein-like protein (SH3BGRL), a downstream effector of PRL-3, plays a tumor suppressive role in solid tumors, but it remains elusive in AML. Here, we followed up and validated the relevance of SH3BGRL expression to AML progression in 116 cases. Results showed that SH3BGRL is down-regulated in 62.37% AML cases with poor prognosis. Cases with positive response to therapy accompanies with SH3GRL expression restoration...
April 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28482095/prl-3-promotes-telomere-deprotection-and-chromosomal-instability
#13
Shenyi Lian, Lin Meng, Yongyong Yang, Ting Ma, Xiaofang Xing, Qin Feng, Qian Song, Caiyun Liu, Zhihua Tian, Like Qu, Chengchao Shou
Phosphatase of regenerating liver (PRL-3) promotes cell invasiveness, but its role in genomic integrity remains unknown. We report here that shelterin component RAP1 mediates association between PRL-3 and TRF2. In addition, TRF2 and RAP1 assist recruitment of PRL-3 to telomeric DNA. Silencing of PRL-3 in colon cancer cells does not affect telomere integrity or chromosomal stability, but induces reactive oxygen species-dependent DNA damage response and senescence. However, overexpression of PRL-3 in colon cancer cells and primary fibroblasts promotes structural abnormalities of telomeres, telomere deprotection, DNA damage response, chromosomal instability and senescence...
June 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28284838/prl-3-ptp4a3-phosphatase-regulates-integrin-%C3%AE-1-in-adhesion-structures-during-migration-of-human-ocular-melanoma-cells
#14
Malika Foy, Océane Anézo, Simon Saule, Nathalie Planque
In a previous transcriptomic analysis of 63 ocular melanomas of the uvea, we found that expression of the PRL-3/PTP4A3 gene, encoding a phosphatase that is anchored to the plasma membrane, was associated with the risk of metastasis, and a poor prognosis. We also showed that PRL-3 overexpression in OCM-1 ocular melanoma cells significantly increased cell migration in vitro and invasiveness in vivo, suggesting a direct role for PRL-3 in the metastatic spreading of uveal melanoma. Here, we aimed to identify PRL-3 substrates at the plasma membrane involved in adhesion to the extracellular matrix...
April 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28212475/-frequency-of-increased-thyrotropin-in-women-with-hyperprolactinemia
#15
Sebastián Carranza-Lira, María Luisa Daza-Carrasco, Rosario Chán-Verdugo
BACKGROUND: Hypothyroidism has been associated to hyperprolactinemia. The aim was to establish the frequency of high thyrotropin (TSH) levels in women with hyperprolactinemia. METHODS: Retrospective, observational, open, and non-controlled study, which included all the non-pregnant women whose prolactin (PRL) and TSH levels were measured between January 1 and December 31, 2014. RESULTS: 437 women were studied. The most frequent diagnoses that motivated PRL measurement were: infertility (31...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28186089/adenovirus-mediated-tipe2-overexpression-inhibits-gastric-cancer-metastasis-via-reversal-of-epithelial-mesenchymal-transition
#16
H Yin, X Huang, M Tao, Q Hu, J Qiu, W Chen, J Wu, Y Xie
Tumor necrosis factor (TNF)-alpha-induced protein 8-like 2 (TNFAIP8L2; also termed TIPE2) has been shown to be involved in both the immune-negative modulation and cancer. We previously found that TIPE2 is lost in human gastric cancer, and TIPE2 restoration suppresses gastric cancer growth by induction of apoptosis and impairment of protein kinase B (PKB/AKT) and extracellular signal-regulated kinase-1/2 (ERK1/2) signaling. However, its correlation with epithelial-mesenchymal transition (EMT) in gastric cancer is largely elusive...
April 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28138254/expression-of-phosphatase-of-regenerating-liver-3-is-associated-with-prognosis-of-wilms-tumor
#17
Fengyin Sun, Wenyi Li, Lie Wang, Changfeng Jiao
OBJECTIVE: The current study was undertaken to explore the clinical and prognostic value of phosphatase of regenerating liver-3 (PRL-3) expression in Wilms' tumor. METHODS: Seventy-six patients with Wilms' tumor in Qilu Hospital from January 2003 to July 2009 were enrolled in the study. Protein expression level of PRL-3 was examined by immunohistochemical staining, and the correlation between PRL-3 expression and histopathological parameters, clinical variables, and outcome of patients with Wilms' tumor were analyzed...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28068414/antibody-array-revealed-prl-3-affects-protein-phosphorylation-and-cytokine-secretion
#18
Yongyong Yang, Shenyi Lian, Lin Meng, Like Qu, Chengchao Shou
Phosphatase of regenerating liver 3 (PRL-3) promotes cancer metastasis and progression via increasing cell motility and invasiveness, however the mechanism is still not fully understood. Previous reports showed that PRL-3 increases the phosphorylation of many important proteins and suspected that PRL-3-enhanced protein phosphorylation may be due to its regulation on cytokines. To investigate PRL-3's impact on protein phosphorylation and cytokine secretion, we performed antibody arrays against protein phosphorylation and cytokines separately...
2017: PloS One
https://www.readbyqxmd.com/read/28011885/lin28b-activation-by-prl-3-promotes-leukemogenesis-and-a-stem-cell-like-transcriptional-program-in-aml
#19
Jianbiao Zhou, Zit-Liang Chan, Chonglei Bi, Xiao Lu, Phyllis S Y Chong, Jing-Yuan Chooi, Lip-Lee Cheong, Shaw-Cheng Liu, Ying Qing Ching, Yafeng Zhou, Motomi Osato, Tuan Zea Tan, Chin Hin Ng, Siok-Bian Ng, Shi Wang, Qi Zeng, Wee-Joo Chng
PRL-3 (PTP4A3), a metastasis-associated phosphatase, is also upregulated in patients with acute myeloid leukemia (AML) and is associated with poor prognosis, but the underlying molecular mechanism is unknown. Here, constitutive expression of PRL-3 in human AML cells sustains leukemogenesis in vitro and in vivo Furthermore, PRL-3 phosphatase activity dependently upregulates LIN28B, a stem cell reprogramming factor, which in turn represses the let-7 mRNA family, inducing a stem cell-like transcriptional program...
March 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/27911713/regulatory-mechanisms-of-phosphatase-of-regenerating-liver-prl-3
#20
REVIEW
Teresa Rubio, Maja Köhn
The phosphatase of regenerating liver (PRL)-3 is overexpressed in many human cancer types and tumor metastases when compared with healthy tissues. Different pathways and mechanisms have been suggested to modulate PRL-3 expression levels and activity, giving some valuable insights but still leaving an incomplete picture. Investigating these mechanisms could provide new targets for therapeutic drug development. Here, we present an updated overview and summarize recent findings concerning the different PRL-3 expression regulatory mechanisms and posttranslational modifications suggested to modulate the activity, localization, or stability of this phosphatase...
October 15, 2016: Biochemical Society Transactions
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