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Yang K, Yi T. Tumor cell stemness in gastrointestinal cancer: regulation and targeted therapy. Front Mol Biosci 2024; 10:1297611. [PMID: 38455361 PMCID: PMC10918437 DOI: 10.3389/fmolb.2023.1297611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/14/2023] [Indexed: 03/09/2024] Open
Abstract
The cancer stem cells are a rare group of self-renewable cancer cells capable of the initiation, progression, metastasis and recurrence of tumors, and also a key contributor to the therapeutic resistance. Thus, understanding the molecular mechanism of tumor stemness regulation, especially in the gastrointestinal (GI) cancers, is of great importance for targeting CSC and designing novel therapeutic strategies. This review aims to elucidate current advancements in the understanding of CSC regulation, including CSC biomarkers, signaling pathways, and non-coding RNAs. We will also provide a comprehensive view on how the tumor microenvironment (TME) display an overall tumor-promoting effect, including the recruitment and impact of cancer-associated fibroblasts (CAFs), the establishment of an immunosuppressive milieu, and the induction of angiogenesis and hypoxia. Lastly, this review consolidates mainstream novel therapeutic interventions targeting CSC stemness regulation.
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Affiliation(s)
- Kangqi Yang
- School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Tuo Yi
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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Tsochantaridis I, Roupas A, Mohlin S, Pappa A, Voulgaridou GP. The Concept of Cancer Stem Cells: Elaborating on ALDH1B1 as an Emerging Marker of Cancer Progression. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010197. [PMID: 36676146 PMCID: PMC9863106 DOI: 10.3390/life13010197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023]
Abstract
Cancer is a multifactorial, complex disease exhibiting extraordinary phenotypic plasticity and diversity. One of the greatest challenges in cancer treatment is intratumoral heterogeneity, which obstructs the efficient eradication of the tumor. Tumor heterogeneity is often associated with the presence of cancer stem cells (CSCs), a cancer cell sub-population possessing a panel of stem-like properties, such as a self-renewal ability and multipotency potential. CSCs are associated with enhanced chemoresistance due to the enhanced efflux of chemotherapeutic agents and the existence of powerful antioxidant and DNA damage repair mechanisms. The distinctive characteristics of CSCs make them ideal targets for clinical therapeutic approaches, and the identification of efficient and specific CSCs biomarkers is of utmost importance. Aldehyde dehydrogenases (ALDHs) comprise a wide superfamily of metabolic enzymes that, over the last years, have gained increasing attention due to their association with stem-related features in a wide panel of hematopoietic malignancies and solid cancers. Aldehyde dehydrogenase 1B1 (ALDH1B1) is an isoform that has been characterized as a marker of colon cancer progression, while various studies suggest its importance in additional malignancies. Here, we review the basic concepts related to CSCs and discuss the potential role of ALDH1B1 in cancer development and its contribution to the CSC phenotype.
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Affiliation(s)
- Ilias Tsochantaridis
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Angelos Roupas
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Sofie Mohlin
- Division of Pediatrics, Clinical Sciences, Lund Stem Cell Center, Lund University Cancer Center, 22384 Lund, Sweden
| | - Aglaia Pappa
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Georgia-Persephoni Voulgaridou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
- Correspondence:
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Doerfler R, Melamed JR, Whitehead KA. The Effect of Infant Gastric Digestion on Human Maternal Milk Cells. Mol Nutr Food Res 2022; 66:e2200090. [PMID: 35984112 PMCID: PMC9532377 DOI: 10.1002/mnfr.202200090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 06/24/2022] [Indexed: 12/30/2022]
Abstract
SCOPE Human breast milk contains a variety of cell types that have potential roles in infant immunity and development. One challenge associates with defining the purpose(s) of milk cells in the infant is a poor understanding of the effect of digestion on cell fate. METHODS AND RESULTS This study first demonstrates that milk cell death occurs after gastric digestion in mice. Then flow cytometry and RT-PCR are used to understand the mechanism of human milk cell death and quantify live cell types before and after simulated gastric digestion. This study finds that digestion in simulated gastric fluid for 30 min reduces cell viability from 72% to 27%, with most cell death is caused by the acidic pH. The primary mechanism of cell death is caspase-mediated apoptosis. The non-cellular components of milk offer only mild protection against cell death from stomach acid. CONCLUSIONS Gastric digestion does not select for a specific resilient cell population to survive-most cell types die in equal proportions in the gastric environment. Taken together, these results provide a foundation with which to understand the fate of human breast milk cells in the infant's intestine and beyond.
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Affiliation(s)
- Rose Doerfler
- Department of Chemical EngineeringCarnegie Mellon UniversityPittsburghPA15213USA
| | - Jilian R. Melamed
- Department of Chemical EngineeringCarnegie Mellon UniversityPittsburghPA15213USA
| | - Kathryn A. Whitehead
- Department of Chemical EngineeringCarnegie Mellon UniversityPittsburghPA15213USA,Department of Biomedical EngineeringCarnegie Mellon UniversityPittsburghPA15213USA
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Nachiyappan A, Soon JLJ, Lim HJ, Lee VK, Taneja R. EHMT1 promotes tumor progression and maintains stemness by regulating ALDH1A1 expression in alveolar rhabdomyosarcoma. J Pathol 2022; 256:349-362. [PMID: 34897678 DOI: 10.1002/path.5848] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/16/2021] [Accepted: 12/09/2021] [Indexed: 11/06/2022]
Abstract
Alveolar rhabdomyosarcoma (ARMS) is an aggressive pediatric cancer with poor prognosis. Cancer stem cells (CSCs) are seeds for tumor relapse and metastasis. However, pathways that maintain stemness genes are not fully understood. Here, we report that the enzyme euchromatic histone lysine methyltransferase 1 (EHMT1) is expressed in primary and relapse ARMS tumors. EHMT1 suppression impaired motility and induced differentiation in ARMS cell lines and reduced tumor progression in a mouse xenograft model in vivo. RNA sequencing of EHMT1-depleted cells revealed downregulation of ALDH1A1 that is associated with CSCs. Consistent with this, inhibition of ALDH1A1 expression and activity mimicked EHMT1 depletion phenotypes and reduced tumorsphere formation. Mechanistically, we demonstrate that EHMT1 does not bind to the ALDH1A1 promoter but activates it by stabilizing C/EBPβ, a known regulator of ALDH1A1 expression. Our findings identify a role for EHMT1 in maintenance of stemness by regulating ALDH1A1 expression and suggest that targeting ALDH+ cells is a promising strategy in ARMS. © 2021 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Alamelu Nachiyappan
- Department of Physiology, Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Joshua Ling Jun Soon
- Department of Physiology, Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Huey Jin Lim
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Victor Km Lee
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Reshma Taneja
- Department of Physiology, Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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De la Fuente-Hernandez MA, Alanis-Manriquez EC, Ferat-Osorio E, Rodriguez-Gonzalez A, Arriaga-Pizano L, Vazquez-Santillan K, Melendez-Zajgla J, Fragoso-Ontiveros V, Alvarez-Gomez RM, Maldonado Lagunas V. Molecular changes in adipocyte-derived stem cells during their interplay with cervical cancer cells. Cell Oncol (Dordr) 2022; 45:85-101. [PMID: 35013999 DOI: 10.1007/s13402-021-00653-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2021] [Indexed: 11/03/2022] Open
Abstract
PURPOSE Obesity is as an important risk factor and has been associated with a worse prognosis in at least 13 distinct tumor types. This is partially due to intercellular communication between tumor cells and adipose tissue-derived stem cells (ADSCs), which are increased in obese individuals. As yet, however, little is known about the molecular changes occurring in ADSCs in these conditions. Cervical cancer has a high incidence and mortality rate in women from developing countries, particularly in those with a high body mass index (BMI). METHODS We analyzed the expression profile of ADSCs co-cultured with cervical cancer cells through massive RNA sequencing followed by evaluation of various functional alterations resulting from the modified transcriptome. RESULTS A total of 761 coding and non-coding dysregulated RNAs were identified in ADSCs after co-culture with HeLa cells (validation in CaSki and SiHA cells). Subsequent network analysis showed that these changes were correlated with migration, stemness, DNA repair and cytokine production. Functional experiments revealed a larger ALDHhigh subpopulation and a higher migrative capacity of ADSCs after co-culture with HeLa cells. Interestingly, CXCL3 and its intragenic long-noncoding RNA, lnc-CXCL3, were found to be co-regulated during co-culture. A loss-of-function assay revealed that lnc-CXCL3 acts as a key regulator of CXCL3 expression. CONCLUSIONS Our results suggest that intercellular communication between ADSCs and cervical cancer cells modifies the RNA expression profile in the former, including that of lncRNAs, which in turn can regulate the expression of diverse chemokines that favor malignancy-associated capacities such as migration.
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Affiliation(s)
- Marcela Angelica De la Fuente-Hernandez
- Facultad de Medicina, Posgrado en Ciencias Biologicas, Universidad Nacional Autonoma de Mexico (UNAM), Av. Ciudad Universitaria 3000, C.P. 04510, Coyoacan, Mexico City, Mexico.,Epigenetics Laboratory, Instituto Nacional de Medicina Genomica (INMEGEN), Periferico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, C.P, 14610, Mexico City, Mexico
| | - Erika Claudia Alanis-Manriquez
- Epigenetics Laboratory, Instituto Nacional de Medicina Genomica (INMEGEN), Periferico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, C.P, 14610, Mexico City, Mexico
| | - Eduardo Ferat-Osorio
- Gastrosurgery Service, UMAE. Hospital de Especialidades Dr. Bernardo Sepulveda Gutierrez of the Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Av. Cuauhtemoc No 330, Col. Doctores, Cuauhtemoc, C.P., 06720, Mexico City, Mexico
| | - Arturo Rodriguez-Gonzalez
- Gastrosurgery Service, UMAE. Hospital de Especialidades Dr. Bernardo Sepulveda Gutierrez of the Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Av. Cuauhtemoc No 330, Col. Doctores, Cuauhtemoc, C.P., 06720, Mexico City, Mexico
| | - Lourdes Arriaga-Pizano
- Unidad de Investigacion Medica en Inmunoquimica. Hospital de Especialidades, Dr. Bernardo Sepulveda Gutierrez of the Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Av. Cuauhtemoc No 330, Col. Doctores, Cuauhtemoc, C.P., 06720, Mexico City, Mexico
| | - Karla Vazquez-Santillan
- Epigenetics Laboratory, Instituto Nacional de Medicina Genomica (INMEGEN), Periferico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, C.P, 14610, Mexico City, Mexico
| | - Jorge Melendez-Zajgla
- Functional Cancer Genomics Laboratory, Instituto Nacional de Medicina Genomica (INMEGEN), Periférico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, C.P., 14610, Mexico City, Mexico
| | | | | | - Vilma Maldonado Lagunas
- Facultad de Medicina, Posgrado en Ciencias Biologicas, Universidad Nacional Autonoma de Mexico (UNAM), Av. Ciudad Universitaria 3000, C.P. 04510, Coyoacan, Mexico City, Mexico. .,Epigenetics Laboratory, Instituto Nacional de Medicina Genomica (INMEGEN), Periferico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, C.P, 14610, Mexico City, Mexico.
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Li J, Garavaglia S, Ye Z, Moretti A, Belyaeva OV, Beiser A, Ibrahim M, Wilk A, McClellan S, Klyuyeva AV, Goggans KR, Kedishvili NY, Salter EA, Wierzbicki A, Migaud ME, Mullett SJ, Yates NA, Camacho CJ, Rizzi M, Sobol RW. A specific inhibitor of ALDH1A3 regulates retinoic acid biosynthesis in glioma stem cells. Commun Biol 2021; 4:1420. [PMID: 34934174 PMCID: PMC8692581 DOI: 10.1038/s42003-021-02949-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 12/07/2021] [Indexed: 01/31/2023] Open
Abstract
Elevated aldehyde dehydrogenase (ALDH) activity correlates with poor outcome for many solid tumors as ALDHs may regulate cell proliferation and chemoresistance of cancer stem cells (CSCs). Accordingly, potent, and selective inhibitors of key ALDH enzymes may represent a novel CSC-directed treatment paradigm for ALDH+ cancer types. Of the many ALDH isoforms, we and others have implicated the elevated expression of ALDH1A3 in mesenchymal glioma stem cells (MES GSCs) as a target for the development of novel therapeutics. To this end, our structure of human ALDH1A3 combined with in silico modeling identifies a selective, active-site inhibitor of ALDH1A3. The lead compound, MCI-INI-3, is a selective competitive inhibitor of human ALDH1A3 and shows poor inhibitory effect on the structurally related isoform ALDH1A1. Mass spectrometry-based cellular thermal shift analysis reveals that ALDH1A3 is the primary binding protein for MCI-INI-3 in MES GSC lysates. The inhibitory effect of MCI-INI-3 on retinoic acid biosynthesis is comparable with that of ALDH1A3 knockout, suggesting that effective inhibition of ALDH1A3 is achieved with MCI-INI-3. Further development is warranted to characterize the role of ALDH1A3 and retinoic acid biosynthesis in glioma stem cell growth and differentiation.
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Affiliation(s)
- Jianfeng Li
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
- Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Silvia Garavaglia
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
| | - Zhaofeng Ye
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- School of Medicine, Tsinghua University, Beijing, China
| | - Andrea Moretti
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
- Structural Plant Biology Laboratory, Department of Botany and Plant Biology, University of Geneva, 1211, Geneva, Switzerland
| | - Olga V Belyaeva
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Schools of Medicine and Dentistry, 720 20th Street South, Kaul 440B, Birmingham, AL, 35294, USA
| | - Alison Beiser
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
- Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Md Ibrahim
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
- Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Anna Wilk
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
- Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Steve McClellan
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Alla V Klyuyeva
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Schools of Medicine and Dentistry, 720 20th Street South, Kaul 440B, Birmingham, AL, 35294, USA
| | - Kelli R Goggans
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Schools of Medicine and Dentistry, 720 20th Street South, Kaul 440B, Birmingham, AL, 35294, USA
| | - Natalia Y Kedishvili
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Schools of Medicine and Dentistry, 720 20th Street South, Kaul 440B, Birmingham, AL, 35294, USA
| | - E Alan Salter
- Department of Chemistry, University of South Alabama, 6040 USA South Drive, Mobile, AL, 36688, USA
| | - Andrzej Wierzbicki
- Department of Chemistry, University of South Alabama, 6040 USA South Drive, Mobile, AL, 36688, USA
| | - Marie E Migaud
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
- Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Steven J Mullett
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Nathan A Yates
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Carlos J Camacho
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Menico Rizzi
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy.
| | - Robert W Sobol
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA.
- Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL, 36604, USA.
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Che S, Wu S, Yu P. Lupeol induces autophagy and apoptosis with reduced cancer stem-like properties in retinoblastoma via phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin inhibition. J Pharm Pharmacol 2021; 74:208-215. [PMID: 33836050 DOI: 10.1093/jpp/rgab060] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/22/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To evaluate the anticancer effects of lupeol in retinoblastoma cells. METHODS WERI-Rb-1 and Y-79 cell lines were used to evaluate the anticancer effect of lupeol. After lupeol treatment, the viability, proliferation, apoptosis, cancer stem-like properties, autophagy and in vivo tumour xenograft formation were detected. KEY FINDINGS In this study, lupeol decreased cell viability in both WERI-Rb-1 and Y-79 cell lines. Lupeol could also inhibit proliferation and induce apoptosis of RB cells, with increased Bax level and decreased Ki67, survivin and Bcl-2 levels. Furthermore, lupeol could suppress the spheroid formation and stem-like properties of RB cells. Moreover, LC3 II/LC3 I ratio and the levels of Beclin1 and ATG7 were increased after lupeol treatment, indicating that lupeol could induce autophagy in RB cells. Next, the inhibitory effect of lupeol on the phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin pathway was observed. In tumour-bearing mice, lupeol suppressed tumour growth, and this might relate to its role in cell apoptosis, autophagy and stem-like properties. CONCLUSIONS Lupeol suppressed proliferation and cancer stem-like properties, and promoted autophagy and apoptosis of RB cells by restraining the PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Songtian Che
- Department of Ocular Fundus Disease, the Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Shuai Wu
- Department of Orbital Disease and Ocular Plastic Surgery, the Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Peng Yu
- Department of Ocular Fundus Disease, the Second Hospital of Jilin University, Changchun, People's Republic of China
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Lei X, He Q, Li Z, Zou Q, Xu P, Yu H, Ding Y, Zhu W. Cancer stem cells in colorectal cancer and the association with chemotherapy resistance. Med Oncol 2021; 38:43. [PMID: 33738588 DOI: 10.1007/s12032-021-01488-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
The incidence and mortality of colorectal cancer (CRC) have always been among the highest in the world, although the diagnosis and treatment are becoming more and more advanced. At present, the main reason is that patients have acquired drug resistance after long-term conventional drug treatment. An increasing number of evidences confirm the existence of cancer stem cells (CSCs), which are a group of special cells in cancer, only a small part of cancer cells. These special cell populations are not eliminated by chemotherapeutic drugs and result in tumor recurrence and metastasis after drug treatment. CSCs have the ability of self-renewal and multidirectional differentiation, which is associated with the occurrence and development of cancer. CSCs can be screened and identified by related surface markers. In this paper, the characteristic surface markers of CSCs in CRC and the related mechanism of drug resistance will be discussed in detail. A better understanding of the mechanism of CSCs resistance to chemotherapy may lead to better targeted therapy.
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Affiliation(s)
- Xue Lei
- Department of Pathology, Guangdong Medical University, No.1 Xincheng Road, Dongguan, 523808, Guangdong Province, China
| | - Qinglian He
- Department of Pathology, Guangdong Medical University, No.1 Xincheng Road, Dongguan, 523808, Guangdong Province, China
| | - Ziqi Li
- Department of Pathology, Guangdong Medical University, No.1 Xincheng Road, Dongguan, 523808, Guangdong Province, China
| | - Qian Zou
- Department of Pathology, Guangdong Medical University, No.1 Xincheng Road, Dongguan, 523808, Guangdong Province, China
| | - Pingrong Xu
- Department of Pathology, Guangdong Medical University, No.1 Xincheng Road, Dongguan, 523808, Guangdong Province, China
| | - Haibing Yu
- School of Public Health, Guangdong Medical University, Dongguan, 523808, Guangdong Province, China
| | - Yuanlin Ding
- School of Public Health, Guangdong Medical University, Dongguan, 523808, Guangdong Province, China
| | - Wei Zhu
- Department of Pathology, Guangdong Medical University, No.1 Xincheng Road, Dongguan, 523808, Guangdong Province, China.
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Hervieu C, Christou N, Battu S, Mathonnet M. The Role of Cancer Stem Cells in Colorectal Cancer: From the Basics to Novel Clinical Trials. Cancers (Basel) 2021; 13:1092. [PMID: 33806312 PMCID: PMC7961892 DOI: 10.3390/cancers13051092] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/27/2021] [Indexed: 02/06/2023] Open
Abstract
The treatment options available for colorectal cancer (CRC) have increased over the years and have significantly improved the overall survival of CRC patients. However, the response rate for CRC patients with metastatic disease remains low and decreases with subsequent lines of therapy. The clinical management of patients with metastatic CRC (mCRC) presents a unique challenge in balancing the benefits and harms while considering disease progression, treatment-related toxicities, drug resistance and the patient's overall quality of life. Despite the initial success of therapy, the development of drug resistance can lead to therapy failure and relapse in cancer patients, which can be attributed to the cancer stem cells (CSCs). Thus, colorectal CSCs (CCSCs) contribute to therapy resistance but also to tumor initiation and metastasis development, making them attractive potential targets for the treatment of CRC. This review presents the available CCSC isolation methods, the clinical relevance of these CCSCs, the mechanisms of drug resistance associated with CCSCs and the ongoing clinical trials targeting these CCSCs. Novel therapeutic strategies are needed to effectively eradicate both tumor growth and metastasis, while taking into account the tumor microenvironment (TME) which plays a key role in tumor cell plasticity.
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Affiliation(s)
- Céline Hervieu
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
| | - Niki Christou
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
- Department of General, Endocrine and Digestive Surgery, University Hospital of Limoges, 87025 Limoges CEDEX, France
| | - Serge Battu
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
| | - Muriel Mathonnet
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
- Department of General, Endocrine and Digestive Surgery, University Hospital of Limoges, 87025 Limoges CEDEX, France
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10
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Yang WT, Feng Q, Ma HM, Lei D, Zheng PS. NF-YA promotes the cell proliferation and tumorigenic properties by transcriptional activation of SOX2 in cervical cancer. J Cell Mol Med 2020; 24:12464-12475. [PMID: 32954681 PMCID: PMC7686972 DOI: 10.1111/jcmm.15777] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 12/24/2022] Open
Abstract
NF‐YA is considered as a crucial regulator for the maintenance of cancer stem cell (CSC) and involved in various types of malignant tumours. However, the exact function and molecular mechanisms of NF‐YA in the progression of cervical cancer remains poorly understood. Here, the expression of NF‐YA detected by immunohistochemistry was gradually increased from normal cervical tissues, to the high‐grade squamous intraepithelial lesions, and then to cervical cancer tissues. NF‐YA promoted the cell proliferation and tumorigenic properties of cervical cancer cells as well as tumorsphere formation and chemoresistance in vitro. The luciferase reporter assay combined with mutagenesis analyses and Western blotting showed that NF‐YA trans‐activated the expression of SOX2 in cervical cancer. Furthermore, quantitative chromatin immunoprecipitation (qChIP) and electrophoretic mobility shift assay (EMSA) confirmed that NF‐YA protein directly bound to the CCAAT box region located upstream of the SOX2 promoter. Together, our data demonstrated that NF‐YA was highly expressed in cervical cancer and promoted the cell proliferation, tumorigenicity and CSC characteristic by trans‐activating the expression of SOX2.
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Affiliation(s)
- Wen-Ting Yang
- Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, Xi'an, China
| | - Qian Feng
- Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, Xi'an, China
| | - Hong-Mei Ma
- Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, Xi'an, China
| | - Dan Lei
- Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, Xi'an, China
| | - Peng-Sheng Zheng
- Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of the People's Republic of China, Shaanxi, Xi'an, China
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11
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Kanda M, Shimizu D, Sawaki K, Nakamura S, Umeda S, Miwa T, Tanaka H, Tanaka C, Hayashi M, Iguchi Y, Yamada S, Katsuno M, Kodera Y. Therapeutic monoclonal antibody targeting of neuronal pentraxin receptor to control metastasis in gastric cancer. Mol Cancer 2020; 19:131. [PMID: 32847597 PMCID: PMC7448342 DOI: 10.1186/s12943-020-01251-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Controlling metastasis is essential for improving the prognosis of patients with gastric cancer (GC). Here, we aimed to identify a molecule required for GC metastasis and to investigate its potential utility as a target for the development of therapeutic antibodies (Abs). METHODS Transcriptome and bioinformatics analyses of human GC cell lines identified the neuronal pentraxin receptor (NPTXR) as a candidate molecule. NPTXR function was probed by modulating its expression in GC cells and assessing the effects on intracellular signaling and malignant behaviors in vitro and in mouse xenograft models. We also generated anti-NPTXR Abs and Nptxr-/- mice, and assessed the clinical significance of NPTXR expression in GC specimens. RESULTS NPTXR mRNA expression in clinical specimens was associated with disease progression and was significantly higher in tissues from GC patients with distant metastasis compared with those without. NPTXR regulated expression of genes involved in metastatic behaviors as well as activation of the PI3K-AKT-mTOR, FAK-JNK, and YAP signaling pathways. NPTXR silencing promoted caspase-mediated apoptosis and attenuated GC cell proliferation, cell cycle progression, migration, invasion, adhesion, stem cell-like properties, and resistance to 5-fluorouracil in vitro, and also inhibited the tumorigenicity of GC cells in vivo. Anti-NPTXR Abs inhibited GC peritoneal metastasis in mice. Nptxr-/- mice showed no abnormalities in reproduction, development, metabolism, or motor function. CONCLUSIONS NPTXR plays an essential role in controlling the malignant behavior of GC cells in vitro and in vivo. NPTXR-targeting Abs may thus have utility as novel diagnostic tools and/or treatment modalities for GC.
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MESH Headings
- Animals
- Antibodies, Monoclonal/pharmacology
- Antineoplastic Agents, Immunological/pharmacology
- Biomarkers, Tumor
- CRISPR-Cas Systems
- Cell Line, Tumor
- Disease Models, Animal
- Gene Expression
- Gene Targeting
- Humans
- Mice
- Mice, Knockout
- Models, Biological
- Neoplasm Metastasis
- Neoplasm Staging
- Phenotype
- Prognosis
- Receptors, Cell Surface/antagonists & inhibitors
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Signal Transduction/drug effects
- Stomach Neoplasms/drug therapy
- Stomach Neoplasms/genetics
- Stomach Neoplasms/metabolism
- Stomach Neoplasms/pathology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Mitsuro Kanda
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
| | - Dai Shimizu
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Koichi Sawaki
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Shunsuke Nakamura
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Shinichi Umeda
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Takashi Miwa
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Haruyoshi Tanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Chie Tanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Masamichi Hayashi
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Yohei Iguchi
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Suguru Yamada
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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12
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Vares G, Ahire V, Sunada S, Ho Kim E, Sai S, Chevalier F, Romeo PH, Yamamoto T, Nakajima T, Saintigny Y. A multimodal treatment of carbon ions irradiation, miRNA-34 and mTOR inhibitor specifically control high-grade chondrosarcoma cancer stem cells. Radiother Oncol 2020; 150:253-261. [PMID: 32717360 DOI: 10.1016/j.radonc.2020.07.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE High-grade chondrosarcomas are chemo- and radio-resistant cartilage-forming tumors of bone that often relapse and metastase. Thus, new therapeutic strategies are urgently needed. MATERIAL AND METHODS Chondrosarcoma cells (CH-2879) were exposed to carbon-ion irradiation, combined with miR-34 mimic and/or rapamycin administration. The effects of treatment on cancer stem cells, stemness-associated phenotype, radioresistance and tumor-initiating properties were evaluated. RESULTS We show that high-grade chondrosarcoma cells contain a population of radioresistant cancer stem cells that can be targeted by a combination of carbon-ion therapy, miR-34 mimic administration and/or rapamycin treatment that triggers FOXO3 and miR-34 over-expression. mTOR inhibition by rapamycin triggered FOXO3 and miR-34, leading to KLF4 repression. CONCLUSION Our results show that particle therapy combined with molecular treatments effectively controls cancer stem cells and may overcome treatment resistance of high-grade chondrosarcoma.
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Affiliation(s)
- Guillaume Vares
- Cell Signal Unit, Okinawa Institute of Science and Technology Graduate University (OIST), Japan.
| | - Vidhula Ahire
- Research Laboratory and Open Facility for Radiation Biology with Accelerated Ions (LARIA), CEA/DRF/IBFJ/IRCM, Caen, France; Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), Normandie Univ/ENSICAEN/UNICAEN/CEA/CNRS, Caen, France
| | - Shigeaki Sunada
- Department of Radiation Effects Research, National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan; Department of Molecular Genetics, Tokyo Medical and Dental University (TMDU), Japan
| | - Eun Ho Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul, South Korea
| | - Sei Sai
- Department of Charged Particle Therapy Research, National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | - François Chevalier
- Research Laboratory and Open Facility for Radiation Biology with Accelerated Ions (LARIA), CEA/DRF/IBFJ/IRCM, Caen, France; Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), Normandie Univ/ENSICAEN/UNICAEN/CEA/CNRS, Caen, France
| | - Paul-Henri Romeo
- Research Laboratory on Repair and Transcription in Hematopoietic Stem Cells (LRTS), François Jacob Institute of Biology, CEA/DRF/IBFJ/IRCM, Fontenay-aux-Roses, France
| | - Tadashi Yamamoto
- Cell Signal Unit, Okinawa Institute of Science and Technology Graduate University (OIST), Japan
| | - Tetsuo Nakajima
- Department of Radiation Effects Research, National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | - Yannick Saintigny
- Research Laboratory and Open Facility for Radiation Biology with Accelerated Ions (LARIA), CEA/DRF/IBFJ/IRCM, Caen, France; Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), Normandie Univ/ENSICAEN/UNICAEN/CEA/CNRS, Caen, France.
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13
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Wyatt JW, Korasick DA, Qureshi IA, Campbell AC, Gates KS, Tanner JJ. Inhibition, crystal structures, and in-solution oligomeric structure of aldehyde dehydrogenase 9A1. Arch Biochem Biophys 2020; 691:108477. [PMID: 32717224 DOI: 10.1016/j.abb.2020.108477] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 10/23/2022]
Abstract
Aldehyde dehydrogenase 9A1 (ALDH9A1) is a human enzyme that catalyzes the NAD+-dependent oxidation of the carnitine precursor 4-trimethylaminobutyraldehyde to 4-N-trimethylaminobutyrate. Here we show that the broad-spectrum ALDH inhibitor diethylaminobenzaldehyde (DEAB) reversibly inhibits ALDH9A1 in a time-dependent manner. Possible mechanisms of inhibition include covalent reversible inactivation involving the thiohemiacetal intermediate and slow, tight-binding inhibition. Two crystal structures of ALDH9A1 are reported, including the first of the enzyme complexed with NAD+. One of the structures reveals the active conformation of the enzyme, in which the Rossmann dinucleotide-binding domain is fully ordered and the inter-domain linker adopts the canonical β-hairpin observed in other ALDH structures. The oligomeric structure of ALDH9A1 was investigated using analytical ultracentrifugation, small-angle X-ray scattering, and negative stain electron microscopy. These data show that ALDH9A1 forms the classic ALDH superfamily dimer-of-dimers tetramer in solution. Our results suggest that the presence of an aldehyde substrate and NAD+ promotes isomerization of the enzyme into the active conformation.
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Affiliation(s)
- Jesse W Wyatt
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States
| | - David A Korasick
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - Insaf A Qureshi
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad, 500046, India
| | - Ashley C Campbell
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - Kent S Gates
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States; Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - John J Tanner
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States; Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States.
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14
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Chen R, Sugiyama A, Kataoka N, Sugimoto M, Yokoyama S, Fukuda A, Takaishi S, Seno H. Promoter-Level Transcriptome Identifies Stemness Associated With Relatively High Proliferation in Pancreatic Cancer Cells. Front Oncol 2020; 10:316. [PMID: 32266133 PMCID: PMC7099289 DOI: 10.3389/fonc.2020.00316] [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: 11/02/2019] [Accepted: 02/21/2020] [Indexed: 11/13/2022] Open
Abstract
Both pancreatic intraepithelial neoplasia (PanIN), a frequent precursor of pancreatic cancer, and intraductal papillary mucinous neoplasm (IPMN), a less common precursor, undergo several phases of molecular conversions and finally develop into highly malignant solid tumors with negative effects on the quality of life. We approached this long-standing issue by examining the following PanIN/IPMN cell lines derived from mouse models of pancreatic cancer: Ptf1a-Cre; KrasG12D; p53f/+ and Ptf1a-Cre; KrasG12D; and Brg1f/f pancreatic ductal adenocarcinomas (PDAs). The mRNA from these cells was subjected to a cap analysis of gene expression (CAGE) to map the transcription starting sites and quantify the expression of promoters across the genome. Two RNA samples extracted from three individual subcutaneous tumors generated by the transplantation of PanIN or IPMN cancer cell lines were used to generate libraries and Illumina Seq, with four RNA samples in total, to depict discrete transcriptional network between IPMN and PanIN. Moreover, in IPMN cells, the transcriptome tended to be enriched for suppressive and inhibitory biological processes. In contrast, the transcriptome of PanIN cells exhibited properties of stemness. Notably, the proliferation capacity of the latter cells in culture was only minimally constrained by well-known chemotherapy drugs such as GSK690693 and gemcitabine. The various transcriptional factor network systems detected in PanIN and IPMN cells reflect the distinct molecular profiles of these cell types. Further, we hope that these findings will enhance our mechanistic understanding of the characteristic molecular alterations underlying pancreatic cancer precursors. These data may provide a promising direction for therapeutic research.
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Affiliation(s)
- Ru Chen
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Aiko Sugiyama
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Naoyuki Kataoka
- Laboratory of Cell Regulation, Department of Applied Animal Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masahiro Sugimoto
- Research and Development Center for Minimally Invasive Therapies Health Promotion and Preemptive Medicine, Tokyo Medical University, Tokyo, Japan
| | - Shoko Yokoyama
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akihisa Fukuda
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shigeo Takaishi
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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15
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Kopecka J, Trouillas P, Gašparović AČ, Gazzano E, Assaraf YG, Riganti C. Phospholipids and cholesterol: Inducers of cancer multidrug resistance and therapeutic targets. Drug Resist Updat 2020; 49:100670. [DOI: 10.1016/j.drup.2019.100670] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/14/2019] [Accepted: 11/17/2019] [Indexed: 12/13/2022]
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16
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Gaio E, Conte C, Esposito D, Reddi E, Quaglia F, Moret F. CD44 Targeting Mediated by Polymeric Nanoparticles and Combination of Chlorine TPCS 2a-PDT and Docetaxel-Chemotherapy for Efficient Killing of Breast Differentiated and Stem Cancer Cells In Vitro. Cancers (Basel) 2020; 12:E278. [PMID: 31979218 PMCID: PMC7072409 DOI: 10.3390/cancers12020278] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/09/2020] [Accepted: 01/21/2020] [Indexed: 12/31/2022] Open
Abstract
The presence of rare but highly tumorigenic cancer stem cells (CSCs) within the tumors is recognized as one of the major reasons of failure of conventional chemotherapies, mainly attributed to the development of drug resistance and increasing metastatic potential. Here, we propose a therapeutic strategy based on the simultaneous delivery of docetaxel (DTX) and the photosensitizer meso-tetraphenyl chlorine disulfonate (TPCS2a) using hyaluronic acid (HA) coated polymeric nanoparticles (HA-NPs) for the targeting and killing of CD44 over-expressing breast cancer (BC) cells, both differentiated and CSCs (CD44high/CD24low population), thus combining chemotherapy and photodynamic therapy (PDT). Using the CD44high MDA-MB-231 and the CD44low MCF-7 cells, we demonstrated the occurrence of CD44-mediated uptake of HA-NPs both in monolayers and mammosphere cultures enriched in CSCs. Cell treatments showed that combination therapy using co-loaded NPs (HA@DTX/TPCS2a-NPs) had superior efficacy over monotherapies (HA@DTX-NPs or HA@TPCS2a-NPs) in reducing the self-renewal capacity, measured as mammosphere formation efficiency, and in eradicating the CSC population evaluated with aldehyde dehydrogenase activity assay and CD44/CD24 immunostaining. In summary, these in vitro studies demonstrated for the first time the potential of the combination of DTX-chemotherapy and TPCS2a-PDT for killing CSCs using properly designed NPs.
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Affiliation(s)
- Elisa Gaio
- Department of Biology, University of Padova, 35121 Padova, Italy; (E.G.); (E.R.)
| | - Claudia Conte
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy; (C.C.); (D.E.); (F.Q.)
| | - Diletta Esposito
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy; (C.C.); (D.E.); (F.Q.)
| | - Elena Reddi
- Department of Biology, University of Padova, 35121 Padova, Italy; (E.G.); (E.R.)
| | - Fabiana Quaglia
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy; (C.C.); (D.E.); (F.Q.)
| | - Francesca Moret
- Department of Biology, University of Padova, 35121 Padova, Italy; (E.G.); (E.R.)
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17
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Bissoli I, Muscari C. Doxorubicin and α-Mangostin oppositely affect luminal breast cancer cell stemness evaluated by a new retinaldehyde-dependent ALDH assay in MCF-7 tumor spheroids. Biomed Pharmacother 2020; 124:109927. [PMID: 31982725 DOI: 10.1016/j.biopha.2020.109927] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 12/29/2019] [Accepted: 12/29/2019] [Indexed: 02/08/2023] Open
Abstract
According to cancer stem cell theory, only a limited number of self-renewing and cloning cells are responsible for tumor relapse after a period of remittance. The aim of the present study was to investigate the effects of Doxorubicin and α-Mangostin, two antiproliferative drugs, on both tumor bulk and stem cells in multicellular tumor spheroids originated from the luminal MCF-7 breast cancer cell line. A new and original fluorimetric assay was used to selectively measure the activity of the retinaldehyde-dependent isoenzymes of aldehyde dehydrogenase (RALDH), which are markers of a subpopulation of breast cancer stem cells. The administration of 5 μg/ml (12.2 μM) α-Mangostin for 48 h provoked: i) a marked disaggregation of the spheroids, leading to a doubling of their volume (p < 0.01), ii) a 40 % decrease in cell viability (p < 0.01), evaluated by the acid phosphatase assay, and iii) a reduction by more than 90 % of RALDH activity. By contrast, Doxorubicin given for 48 h in the range of 0.1-40 μM did not significantly reduce cell viability and caused only a modest modification of the spheroid morphology. Moreover, 40 μM Doxorubicin increased RALDH activity 2.5-fold compared to the untreated sample. When the two drugs were administered together using 5 μg/ml α-Mangostin, the IC50 of Doxorubicin referred to cell viability decreased six-fold and the RALDH activity was further reduced. In conclusion, the combined administration of Doxorubicin and α-Mangostin provoked a significant cytotoxicity and a remarkable inhibition of RALDH activity in MCF-7 tumor spheroids, suggesting that these drugs could be effective in reducing cell stemness in luminal breast cancer.
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Affiliation(s)
- Irene Bissoli
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Claudio Muscari
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
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18
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Metformin Suppresses Self-Renewal Ability and Tumorigenicity of Osteosarcoma Stem Cells via Reactive Oxygen Species-Mediated Apoptosis and Autophagy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9290728. [PMID: 31827709 PMCID: PMC6885828 DOI: 10.1155/2019/9290728] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/05/2019] [Accepted: 10/11/2019] [Indexed: 02/07/2023]
Abstract
Osteosarcoma is the most frequently diagnosed primary malignant bone sarcoma in children and adolescents. Recent studies have shown that cancer stem cells (CSCs), a cluster of tumor cells with the ability to self-renew, play an essential role in tumor recurrence and metastasis. Thus, it is necessary to develop therapeutic strategies specifically targeting CSCs. Metformin, the first-line drug for type 2 diabetes, exhibits antineoplastic activities in various kinds of tumors. New evidence has suggested that metformin may target CSCs and prevent their recurrence. However, the underlying specific mechanisms remain unclear. In this study, we found that metformin significantly suppressed the self-renewal ability of osteosarcoma stem cells (OSCs) and induced G0/G1 phase arrest by blocking the activity of cyclin-dependent kinases. Furthermore, metformin induced apoptosis through a mitochondria-dependent pathway, leading to the collapse of the mitochondrial transmembrane potential and the production of reactive oxygen species (ROS). Importantly, metformin acted directly on the mitochondria, which resulted in decreased ATP synthesis. This change allowed access to the downstream AMPK kinase, and the activation of AMPK led to the reversal of the mTOR pathway, triggering autophagy. Particularly, metformin-mediated autophagy disturbed the homeostasis of stemness and pluripotency in the OSCs. Additionally, our mouse xenograft model confirmed the potential therapeutic use of metformin in targeting OSCs. In conclusion, our findings suggest that metformin suppresses the self-renewal ability and tumorigenicity of OSCs via ROS-mediated apoptosis and autophagy.
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Abstract
Cancer-initiating cells (CIC) are the driving force in tumor progression. There is strong evidence that CIC fulfill this task via exosomes (TEX), which modulate and reprogram stroma, nontransformed cells, and non-CIC. Characterization of CIC, besides others, builds on expression of CIC markers, many of which are known as metastasis-associated molecules. We here discuss that the linkage between CIC/CIC-TEX and metastasis-associated molecules is not fortuitously, but relies on the contribution of these markers to TEX biogenesis including loading and TEX target interactions. In addition, CIC markers contribute to TEX binding- and uptake-promoted activation of signaling cascades, transcription initiation, and translational control. Our point of view will be outlined for pancreas and colon CIC highly expressing CD44v6, Tspan8, EPCAM, claudin7, and LGR5, which distinctly but coordinately contribute to tumor progression. Despite overwhelming progress in unraveling the metastatic cascade and the multiple tasks taken over by CIC-TEX, there remains a considerable gap in linking CIC biomarkers, TEX, and TEX-initiated target modulation with metastasis. We will try to outline possible bridges, which could allow depicting pathways for new and expectedly powerful therapeutic interference with tumor progression.
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Affiliation(s)
- Zhe Wang
- Department of Oncology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
| | - Margot Zöller
- Department of Oncology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
- Pancreas Section, University Hospital of Surgery, Heidelberg, Germany.
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