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Del Bufalo D, Di Martile M, Valentini E, Manni I, Masi I, D'Amore A, Filippini A, Nicoletti C, Zaccarini M, Cota C, Castro MV, Quezada MJ, Rosanò L, Lopez-Bergami P, D'Aguanno S. Bcl-2-like protein-10 increases aggressive features of melanoma cells. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2022; 3:11-26. [PMID: 36046354 PMCID: PMC9400776 DOI: 10.37349/etat.2022.00068] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/20/2021] [Indexed: 11/29/2022] Open
Abstract
Aim: B-cell lymphoma-2 (Bcl-2)-like protein-10 (Bcl2L10) is the less studied
member of Bcl-2 family proteins, with the controversial role in different
cancer histotypes. Very recently, Bcl2L10 expression in melanoma tumor
specimens and its role in melanoma response to therapy have been
demonstrated. Here, the involvement of Bcl2L10 on the in
vitro and in vivo properties associated with
melanoma aggressive features has been investigated. Methods: Endogenous Bcl2L10 protein expression was detected by western blotting
analysis in a panel of patient-derived and commercially available human
melanoma cells. In vitro assays to evaluate clonogenicity,
cell proliferation, cell migration, cell invasion, and in
vitro capillary-like structure formation [vasculogenic
mimicry (VM)] have been performed by using human melanoma cells
stably overexpressing Bcl2L10 or transiently transfected for loss/gain
function of Bcl2L10, grown under two- or three-dimensional (3D) conditions
Xenograft melanoma model was employed to evaluate in vivo
tumor growth and angiogenesis. Results: Results demonstrated that Bcl2L10 acts as an inducer of in
vitro cell migration, invasion, and VM, while in
vitro cell proliferation, in vivo tumor
growth, as well as colony formation properties were not affected. Dissecting
different signaling pathways, it was found that Bcl2L10 positively affects
the phosphorylation of extracellular-signal-regulated kinase (ERK) and the
expression of markers of cell invasion, such as urokinase plasminogen
activator receptor (uPAR) and matrix metalloproteinases (MMPs). Of note,
Bcl2L10-dependent in vitro migration, invasion, and VM are
linked to uPAR. Bcl2L10 also negatively regulates the intracellular calcium
level. Finally, reduced invasion capability in 3D spheroid invasion assay of
melanoma cells transiently overexpressing Bcl2L10 was observed after
treatment with inhibitors of MMPs and uPAR. Conclusions: Overall, data reported in this paper provide evidence supporting a positive
role of Bcl2L10 in melanoma aggressive features.
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Affiliation(s)
- Donatella Del Bufalo
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Marta Di Martile
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Elisabetta Valentini
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Isabella Manni
- SAFU Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Ilenia Masi
- Institute of Molecular Biology and Pathology, National Research Council, 00161 Rome, Italy
| | - Antonella D'Amore
- Unit of Histology and Medical Embryology, Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University, 00161 Rome, Italy
| | - Antonio Filippini
- Unit of Histology and Medical Embryology, Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University, 00161 Rome, Italy
| | - Carmine Nicoletti
- Unit of Histology and Medical Embryology, Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University, 00161 Rome, Italy
| | - Marco Zaccarini
- Genetic Research, Dermatological Molecular Biology and Dermatopathology Unit, IRCCS San Gallicano Dermatological Institute, 00144 Rome, Italy
| | - Carlo Cota
- Genetic Research, Dermatological Molecular Biology and Dermatopathology Unit, IRCCS San Gallicano Dermatological Institute, 00144 Rome, Italy
| | - Maria Victoria Castro
- Centro de Estudios Biomédicos, Básicos, Aplicados y Desarrollo, Universidad Maimónides, Buenos Aires C1405BCK, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires C1405BCK, Argentina
| | - María Josefina Quezada
- Centro de Estudios Biomédicos, Básicos, Aplicados y Desarrollo, Universidad Maimónides, Buenos Aires C1405BCK, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires C1405BCK, Argentina
| | - Laura Rosanò
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy; Institute of Molecular Biology and Pathology, National Research Council, 00161 Rome, Italy
| | - Pablo Lopez-Bergami
- Centro de Estudios Biomédicos, Básicos, Aplicados y Desarrollo, Universidad Maimónides, Buenos Aires C1405BCK, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires C1405BCK, Argentina
| | - Simona D'Aguanno
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
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SET and MYND domain-containing protein 2 (SMYD2): A prognostic biomarker associated with immune infiltrates in cervical squamous cell carcinoma and endocervical adenocarcinoma. ARCH BIOL SCI 2022. [DOI: 10.2298/abs220413014a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The histone lysine methyltransferase SET (Suppressor of variegation, Enhancer
of Zeste, Trithorax) and MYND (Myeloid-Nervy-DEAF1) domaincontaining protein
(SMYD2) plays a role in the tumorigenesis of cervical squamous cell
carcinoma and endocervical adenocarcinoma (CESC). However, the prognostic
significance of SMYD2 in CESC and the link between SMYD2 and
tumor-infiltrating immune cells are unknown. The prognostic value of SMYD2
in CESC was obtained from The Cancer Genome Atlas (TCGA). SMYD2 mRNA and
protein were both highly expressed in CESC compared with normal tissues. The
high expression of SMYD2 was associated with advanced tumor status and poor
prognosis in CESC patients. SMYD2 was an independent prognostic factor for
overall survival. In vitro experiments with knockdown of SMYD2 suppressed
CESC cell migration and invasion. The online tumor immune estimation
resource (TIMER) and Kaplan-Meier analysis results revealed that the
infiltration of CD4+ T and CD8+ T cells was related to poor prognosis. In
TIMER-based multivariate Cox regression analysis, CD8+ T cells and SMYD2
were demonstrated as independent prognostic factors of CESC. In conclusion,
our data suggest that high SMYD2 expression is a predictor of poor prognosis
in CESC patients; SMYD2 could serve as a prognostic biomarker and molecular
therapeutic target for CESC.
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Hu L, Fang L, Zhang Z, Yan Z. circTADA2A Retards the Progression of Colorectal Cancer via Regulating miR-1229/BCL2L10 Signal Axis. Cancer Manag Res 2021; 13:6811-6821. [PMID: 34512021 PMCID: PMC8422166 DOI: 10.2147/cmar.s314548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/06/2021] [Indexed: 12/24/2022] Open
Abstract
Background Colorectal cancer (CRC) is one of the leading causes of cancer-related death around the world, becoming a severe public health problem. Mounting evidence has proven that circRNAs act as pivotal modulators in the initiation and development of CRC. Although the function of circTADA2A has been explored in osteosarcoma and breast cancer, the specific role of circTADA2A in CRC remains unknown. Methods Bioinformatics analysis based on GEO datasets was used to evaluate the dysregulated circRNAs in CRC. CCK-8 and transwell assays were used to detect the functions of CRC cells. qRT-PCR and Western blot were performed to evaluate the expression of RNAs and proteins. Luciferase assay and RNA pull down experiment were carried out to verify the interaction between miR and its targets. Results CircTADA2A was downregulated in CRC tissues compared with normal samples. CircTADA2A exhibited greater stability than its linear form when exposed to RNase R and actinomycin D treatment. qRT-PCR analysis validated the lower expression level of circTADA2A in CRC. The loss-of-function and gain-of-function assays indicated that circTADA2A exerted the inhibitory role in CRC cell proliferation and migration. Mechanistically, circTADA2A functioned as a sponge of miR-1229. Further experiments manifested that circTADA2A regulated BCL2L10 expression via competitively binding to miR-1229. More importantly, the tumor suppressor role of circTADA2A in the malignant behaviors of CRC cells was mediated by BCL2L10. Conclusion circTADA2A suppressed cell proliferation and migration in CRC through regulation of miR-1229/BCL2L10 axis, which suggested that circTADA2A might represent a novel potential target for the treatment of CRC.
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Affiliation(s)
- Li Hu
- Department of Gastroenterology, Ningbo No.1 Hospital, Ningbo, People's Republic of China
| | - Lei Fang
- Department of Gastroenterology, Ningbo No.1 Hospital, Ningbo, People's Republic of China
| | - Zhiping Zhang
- Department of Gastroenterology, Ningbo No.1 Hospital, Ningbo, People's Republic of China
| | - Zhilong Yan
- Department of Gastroenterology, Ningbo No.1 Hospital, Ningbo, People's Republic of China
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Lee SY, Kwon J, Lee KA. Bcl2l10 induces metabolic alterations in ovarian cancer cells by regulating the TCA cycle enzymes SDHD and IDH1. Oncol Rep 2021; 45:47. [PMID: 33649794 PMCID: PMC7934226 DOI: 10.3892/or.2021.7998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/03/2021] [Indexed: 01/07/2023] Open
Abstract
Bcl2‑like‑10 (Bcl2l10) has both oncogenic and tumor suppressor functions depending on the type of cancer. It has been previously demonstrated that the suppression of Bcl2l10 in ovarian cancer SKOV3 and A2780 cells causes cell cycle arrest and enhances cell proliferation, indicating that Bcl2l10 is a tumor suppressor gene in ovarian cancer cells. The aim of the present study was to identify possible downstream target genes and investigate the underlying mechanisms of action of Bcl2l10 in ovarian cancer cells. RNA sequencing (RNA‑Seq) was performed to obtain a list of differentially expressed genes (DEGs) in Bcl2l10‑suppressed SKOV3 and A2780 cells. The RNA‑Seq data were validated by reverse transcription‑quantitative PCR (RT‑qPCR) and western blot analysis, and the levels of metabolites after Bcl2l10‑knockdown were measured using colorimetric assay kits. Pathway enrichment analysis revealed that the commonly downregulated genes in SKOV3 and A2780 cells after Bcl2l10‑knockdown were significantly enriched in metabolic pathways. The analysis of the DEGs identified from RNA‑Seq and validated by RT‑qPCR revealed that succinate dehydrogenase complex subunit D (SDHD) and isocitrate dehydrogenase 1 (IDH1), which are key enzymes of the TCA cycle that regulate oncometabolite production, may be potential downstream targets of Bcl2l10. Furthermore, Bcl2l10‑knockdown induced the accumulation of succinate and isocitrate through the downregulation of SDHD and IDH1. The present study was the first to elucidate the metabolic regulatory functions of Bcl2l10 in ovarian cancer cells, and the results indicated that Bcl2l10 may serve as a potential therapeutic target in ovarian cancer.
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Affiliation(s)
- Su-Yeon Lee
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Jinie Kwon
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Kyung-Ah Lee
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Gyeonggi 13488, Republic of Korea,Correspondence to: Professor Kyung-Ah Lee, Department of Biomedical Science, College of Life Science, CHA University, 335 Pangyo-ro, Bundang, Seongnam, Gyeonggi 13488, Republic of Korea, E-mail:
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BCL2L10 Is Overexpressed in Melanoma Downstream of STAT3 and Promotes Cisplatin and ABT-737 Resistance. Cancers (Basel) 2020; 13:cancers13010078. [PMID: 33396645 PMCID: PMC7795116 DOI: 10.3390/cancers13010078] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary BCL2L10 is the sixth and less studied protein from the group of Bcl-2 anti-apoptotic proteins. These proteins are important therapeutic targets since they convey resistance to anticancer regimens. We describe here for the first time the role of BCL2L10 in melanoma. We found that BCL2L10 is abundantly and frequently expressed both in melanoma cell lines and tumor samples. This increased expression is due to the activity of the transcription factor STAT3 that positively regulate BCL2L10 transcription. We describe that Bcl2l10 is a pro-survival factor in melanoma, being able to protect cells from the cytotoxic effect of different drugs, including cisplatin, dacarbazine, and ABT-737. BCL2L10 also inhibited the cell death upon combination treatments of PLX-4032, a BRAF inhibitor, with ABT-737 or cisplatin. In summary, we determined that BCL2L10 is expressed in melanoma and contributes to cell survival. Hence, targeting BCL2L10 may enhance the clinical efficacy of other therapies for malignant melanoma. Abstract The anti-apoptotic proteins from the Bcl-2 family are important therapeutic targets since they convey resistance to anticancer regimens. Despite the suspected functional redundancy among the six proteins of this subfamily, both basic studies and therapeutic approaches have focused mainly on BCL2, Bcl-xL, and MCL1. The role of BCL2L10, another member of this group, has been poorly studied in cancer and never has been in melanoma. We describe here that BCL2L10 is abundantly and frequently expressed both in melanoma cell lines and tumor samples. We established that BCL2L10 expression is driven by STAT3-mediated transcription, and by using reporter assays, site-directed mutagenesis, and ChIP analysis, we identified the functional STAT3 responsive elements in the BCL2L10 promoter. BCL2L10 is a pro-survival factor in melanoma since its expression reduced the cytotoxic effects of cisplatin, dacarbazine, and ABT-737 (a BCL2, Bcl-xL, and Bcl-w inhibitor). Meanwhile, both genetic and pharmacological inhibition of BCL2L10 sensitized melanoma cells to cisplatin and ABT-737. Finally, BCL2L10 inhibited the cell death upon combination treatments of PLX-4032, a BRAF inhibitor, with ABT-737 or cisplatin. In summary, we determined that BCL2L10 is expressed in melanoma and contributes to cell survival. Hence, targeting BCL2L10 may enhance the clinical efficacy of other therapies for malignant melanoma.
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