scholarly journals Lclet 4 enhances pro-apoptotic and anti-invasive effects of mitoxantrone on human prostate cancer cells - in vitro study.

2013 ◽  
Vol 60 (3) ◽  
Author(s):  
Paulina Koczurkiewicz ◽  
Irma Podolak ◽  
Katarzyna Anna Wójcik ◽  
Agnieszka Galanty ◽  
Zbigniew Madeja ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cancer Progression ◽  
Cancer Chemotherapy ◽  
Biological Activities ◽  
Plant Secondary Metabolites ◽  
In Vitro Study ◽  
Human Prostate ◽  
Cytostatic Drug ◽  
Human Prostate Cancer

Triterpene saponosides are widely distributed plant secondary metabolites characterized by relatively low systemic cytotoxicity and a range of biological activities. These include anti-inflammatory, antimicrobial, vasoprotective and antitumor properties. In particular, the ability of saponins to enhance the cytotoxicity of chemotherapeutic drugs opened perspectives for their application in combined cancer chemotherapy. Here, we used human prostate cancer DU-145 cells as an in vitro model to elucidate the synergy of the interactions between biological activities of an oleanane type 13β,28-epoxy triterpene saponoside (Lclet 4) and mitoxantrone, which is a cytostatic drug commonly used in prostate cancer therapy. No cytotoxic or pro-apoptotic effect of Lclet 4 and mitoxantrone administered at the concentrations between 0.05 and 0.1 µg/ml could be seen. In contrast, cocktails of these agents exerted synergistic pro-apoptotic effects, accompanied by the activation of the caspase 3/7 system. This effect was paralleled by attenuating effects of Lclet 4/mitoxantrone cocktails on the invasive potential, metalloproteinase expression and motility of DU-145 cells. Multifaceted and additive effects of Lclet 4 and mitoxantrone on basic cellular traits crucial for prostate cancer progression indicate that the combined application of both agents at systemically neutral concentrations may provide the basis for new promising strategies of prostate cancer chemotherapy.

scholarly journals The mitotic regulator Hec1 is a critical modulator of prostate cancer through the long non-coding RNA BX647187 in vitro

2015 ◽  
Vol 35 (6) ◽  
Author(s):  
Haifeng Wang ◽  
Xu Gao ◽  
Xin Lu ◽  
Yan Wang ◽  
Chunfei Ma ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Molecular Mechanism ◽  
Cancer Progression ◽  
Nuclear Division ◽  
Human Prostate ◽  
Human Prostate Cancer ◽  
Prostate Cancer Progression ◽  
Non Coding Rna ◽  
Long Non Coding Rna

The mitotic regulator Hec1 (highly expressed in cancer), is a member of a conserved Ndc80 (nuclear division cycle 80) complex that regulates mitotic processes. We find that Hec1 is consistently overexpressed in human prostate cancer and Hec1 is closely linked with human prostate cancer progression through the meditator LncRNA BX647187. Our studies may contribute to understand the molecular mechanism of PCa pathogenesis and clinical therapy.

scholarly journals ADAMTS-15 Has a Tumor Suppressor Role in Prostate Cancer

Biomolecules ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 682 ◽  
Author(s):  
Marley J. Binder ◽  
Scott McCoombe ◽  
Elizabeth D. Williams ◽  
Daniel R. McCulloch ◽  
Alister C. Ward
Keyword(s):  
Prostate Cancer ◽  
Tumor Suppressor ◽  
Cancer Cell ◽  
Cancer Progression ◽  
Prostate Cancer Cell ◽  
Human Prostate ◽  
Matrix Remodeling ◽  
Human Prostate Cancer ◽  
Enzymatic Function

Extracellular matrix remodeling has emerged as an important factor in many cancers. Proteoglycans, including versican (VCAN), are regulated via cleavage by the proteolytic actions of A Disintegrin-like And Metalloproteinase domain with Thrombospondin-1 motif (ADAMTS) family members. Alterations in the balance between Proteoglycans and ADAMTS enzymes have been proposed to contribute to cancer progression. Here, we analyzed the expression of ADAMTS-15 in human prostate cancer, and investigated the effects of enforced expression in prostate cancer cell lines. ADAMTS-15 was found to be expressed in human prostate cancer biopsies with evidence of co-localization with VCAN and its bioactive cleavage fragment versikine. Enforced expression of ADAMTS-15, but not a catalytically-inactive version, decreased cell proliferation and migration of the ‘castrate-resistant’ PC3 prostate cancer cell line in vitro, with survival increased. Analysis of ‘androgen-responsive’ LNCaP prostate cancer cells in vivo in NOD/SCID mice revealed that ADAMTS-15 expression caused slower growing tumors, which resulted in increased survival. This was not observed in castrated mice or with cells expressing catalytically-inactive ADAMTS-15. Collectively, this research identifies the enzymatic function of ADAMTS-15 as having a tumor suppressor role in prostate cancer, possibly in concert with androgens, and that VCAN represents a likely key substrate, highlighting potential new options for the clinic.

scholarly journals Synthesis and Evaluation of the Tetracyclic Ring-System of Isocryptolepine and Regioiso-Mers for Antimalarial, Antiproliferative and Antimicrobial Activities

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3268
Author(s):  
Katja S. Håheim ◽  
Emil Lindbäck ◽  
Kah Ni Tan ◽  
Marte Albrigtsen ◽  
Ida T. Urdal Helgeland ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cell Lines ◽  
Cancer Cell ◽  
Antimicrobial Activities ◽  
Ring System ◽  
Human Prostate ◽  
The Novel ◽  
Human Prostate Cancer ◽  
Biofilm Inhibition

A series of novel quinoline-based tetracyclic ring-systems were synthesized and evaluated in vitro for their antiplasmodial, antiproliferative and antimicrobial activities. The novel hydroiodide salts 10 and 21 showed the most promising antiplasmodial inhibition, with compound 10 displaying higher selectivity than the employed standards. The antiproliferative assay revealed novel pyridophenanthridine 4b to be significantly more active against human prostate cancer (IC50 = 24 nM) than Puromycin (IC50 = 270 nM) and Doxorubicin (IC50 = 830 nM), which are used for clinical treatment. Pyridocarbazoles 9 was also moderately effective against all the employed cancer cell lines and moreover showed excellent biofilm inhibition (9a: MBIC = 100 µM; 9b: MBIC = 100 µM).

Steroid hormones stimulate human prostate cancer progression and metastasis

2006 ◽  
Vol 118 (9) ◽  
pp. 2123-2131 ◽  
Author(s):  
William A. Ricke ◽  
Kenichiro Ishii ◽  
Emily A. Ricke ◽  
Jeff Simko ◽  
Yuzhuo Wang ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Steroid Hormones ◽  
Cancer Progression ◽  
Human Prostate ◽  
Human Prostate Cancer ◽  
Prostate Cancer Progression

scholarly journals Anticancer activity of midostaurin in hormone refractory human prostate cancer DU145 cells

2016 ◽  
Vol 11 (2) ◽  
pp. 378
Author(s):  
Jin-Jun Sun ◽  
Shi-Feng Kan ◽  
Guan-Xing Sun
Keyword(s):  
Prostate Cancer ◽  
Kinase Inhibitor ◽  
Cancer Cell Line ◽  
Prostate Cancer Cell Line ◽  
Nerve Cells ◽  
Human Prostate ◽  
Human Prostate Cancer ◽  
Du145 Cells ◽  
Hormone Refractory

<p class="Abstract">We tried a new method of prostate cancer treatment by inducing<em> in vitro</em> differentiation which resulted in reduction of cancer cells growth. A protein kinase inhibitor, midostaurin's ability to trigger the human prostate cancer cell line, DU145 to segregate into nerve cells was studied. Midostaurin (100 nM) suppressed the growth of DU145 cells but without change in the number of dead cells. Midostaurin started to extend neurites on DU145 cells after 24 hours and differentiated into nerve cells by 72 hours. The microtubule was stabilized by tau protein and its mRNA expression showed time-dependent increase in midostaurin-treated DU145 cells. At the same time, the amount of acetylcholinesterase was also increased. The midostaurin-treated DU145 cells showed 40% less activity than control in the colony forming assay. The results suggests that midostaurin can induce differentiation of DU145 cells into nerve cells.</p><p> </p>

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