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Gan J, Li S, Meng Y, Liao Y, Jiang M, Qi L, Li Y, Bai Y. The influence of photodynamic therapy on the Warburg effect in esophageal cancer cells. Lasers Med Sci 2020; 35:1741-1750. [PMID: 32034563 DOI: 10.1007/s10103-020-02966-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/13/2020] [Indexed: 12/16/2022]
Abstract
To investigate whether the Warburg effect is a key modulator on the resistance mechanism of photodynamic therapy (PDT). Glycolysis was examined by the test of lactate product and glucose uptake at different post-PDT time points. Cell viability was detected by the CCK-8 assay and cell proliferation was detected by colony formation assay. The expression of glycolysis and related proteins were examined by western blotting. Target gene was silenced by RNAi. In the present study, we assessed the effect of PDT on cancer cell glycolysis. Our team has demonstrated that pyruvate kinase M2 (PKM2), a key speed-limiting enzyme of glycolysis, was significantly overexpressed in patients with esophageal cancer. Our results in the present study showed that PKM2 was downregulated, and lactate product and glucose uptake were inhibited in cells exposed to 5-aminolevulinic acid (5-ALA)-mediated PDT at 4 h after treatment. However, at 24 h after PDT, we observed a substantial increase in PKM2 expression, lactate product, and glucose uptake. Moreover, silencing of PKM2 gene abrogated the upregulatory effect of PDT on glycolysis at late post-PDT period. 2-Deoxy-D-glucose (2-DG) is a recognized chemical inhibitor of glycolysis. The combined treatment of 2-DG and PDT significantly inhibited tumor growth in vitro at 24 h. These results demonstrate that PDT drives the Warburg effect in a time-dependent manner, and PKM2 plays an important role in this progress, which indicated that PKM2 may be a potential molecular target to increase the sensitivity of esophageal cancer cells to PDT.
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Affiliation(s)
- Junqing Gan
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China
| | - Shumin Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China
| | - Yu Meng
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China
| | - Yuanyu Liao
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China
| | - Mingxia Jiang
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China
| | - Ling Qi
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China
| | - Yanjing Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China.
| | - Yuxian Bai
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang, China.
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Al Subeh ZY, Raja HA, Monro S, Flores-Bocanegra L, El-Elimat T, Pearce CJ, McFarland SA, Oberlies NH. Enhanced Production and Anticancer Properties of Photoactivated Perylenequinones. JOURNAL OF NATURAL PRODUCTS 2020; 83:2490-2500. [PMID: 32786877 PMCID: PMC7493285 DOI: 10.1021/acs.jnatprod.0c00492] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Hypocrellins and hypomycins are naturally occurring fungal perylenequinones with potential photodynamic activity against cancer and microbial diseases. This project pursued three lines of research. First, the production of perylenequinones was enhanced by investigating the effect of culture medium and light exposure on their biosynthesis. Solid-fermentation cultures on rice medium allowed for enhanced production of hypocrellins as compared to Cheerios or oatmeal medium. Alternatively, increased production of hypomycins, which are structurally related to the hypocrellins, was observed on oatmeal medium. In both cases, light exposure was an essential factor for the enhanced biosynthesis. In addition, this led to the discovery of two new perylenequinones, ent-shiraiachrome A (5) and hypomycin E (8), which were elucidated based on spectroscopic data. Finally, the photocytotoxic effects of both classes of compounds were evaluated against human skin melanoma, with EC50 values at nanomolar levels for hypocrellins and micromolar levels for hypomycins. In contrast, both classes of compounds showed reduced dark toxicity (EC50 values >100 μM), demonstrating promising phototherapeutic indices.
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Affiliation(s)
- Zeinab Y. Al Subeh
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27402, United States
| | - Huzefa A. Raja
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27402, United States
| | - Susan Monro
- Department of Chemistry, Acadia University, 6 University Avenue, Wolfville, NS B4P 2R6, Canada
| | - Laura Flores-Bocanegra
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27402, United States
| | - Tamam El-Elimat
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Cedric J. Pearce
- Mycosynthetix, Inc., Hillsborough, North Carolina 27278, United States
| | - Sherri A. McFarland
- Department of Chemistry, Acadia University, 6 University Avenue, Wolfville, NS B4P 2R6, Canada
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Nicholas H. Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27402, United States
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Pucelik B, Sułek A, Barzowska A, Dąbrowski JM. Recent advances in strategies for overcoming hypoxia in photodynamic therapy of cancer. Cancer Lett 2020; 492:116-135. [PMID: 32693200 DOI: 10.1016/j.canlet.2020.07.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 07/02/2020] [Accepted: 07/10/2020] [Indexed: 12/23/2022]
Abstract
The selectivity of photodynamic therapy (PDT) derived from the tailored accumulation of photosensitizing drug (photosensitizer; PS) in the tumor microenvironment (TME), and from local irradiation, turns it into a "magic bullet" for the treatment of resistant tumors without sparing the healthy tissue and possible adverse effects. However, locally-induced hypoxia is one of the undesirable consequences of PDT, which may contribute to the emergence of resistance and significantly reduce therapeutic outcomes. Therefore, the development of strategies using new approaches in nanotechnology and molecular biology can offer an increased opportunity to eliminate the disadvantages of hypoxia. Emerging evidence indicates that wisely designed phototherapeutic procedures, including: (i) ROS-tunable photosensitizers, (ii) organelle targeting, (iii) nano-based photoactive drugs and/or PS delivery nanosystems, as well as (iv) combining them with other strategies (i.e. PTT, chemotherapy, theranostics or the design of dual anticancer drug and photosensitizers) can significantly improve the PDT efficacy and overcome the resistance. This mini-review addresses the role of hypoxia and hypoxia-related molecular mechanisms of the HIF-1α pathway in the regulation of PDT efficacy. It also discusses the most recent achievements as well as future perspectives and potential challenges of PDT application against hypoxic tumors.
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Affiliation(s)
- Barbara Pucelik
- Faculty of Chemistry, Jagiellonian University, 30-387, Kraków, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, 30-387, Kraków, Poland
| | - Adam Sułek
- Faculty of Chemistry, Jagiellonian University, 30-387, Kraków, Poland
| | - Agata Barzowska
- Faculty of Chemistry, Jagiellonian University, 30-387, Kraków, Poland
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Dang J, Ye H, Li Y, Liang Q, Li X, Yin L. Multivalency-assisted membrane-penetrating siRNA delivery sensitizes photothermal ablation via inhibition of tumor glycolysis metabolism. Biomaterials 2019; 223:119463. [PMID: 31521887 DOI: 10.1016/j.biomaterials.2019.119463] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 08/16/2019] [Accepted: 08/29/2019] [Indexed: 10/26/2022]
Abstract
The success of photothermal therapy (PTT) is often hampered by the thermo-resistance of tumor cells mediated by over-expressed heat shock proteins (HSPs). Herein, we developed a guanidine-rich, spherical helical polypeptide (DPP) with multivalency-assisted strong membrane penetrating capability, which mediated effective RNAi against tumor glycolysis metabolism to sensitize PTT. ICG was loaded into the internal cavity of DPP, and siRNA against pyruvate kinase M2 (siPKM2) was condensed by DPP to form positively charged nanocomplexes (NCs). The NCs were further coated with human serum albumin to enhance serum stability, prolong blood circulation, and improve tumor targeting. Due to its multivalent topology, DPP exhibited stronger membrane activity yet lower cytotoxicity than its linear analogue (LPP), thus enabling efficient PKM2 silencing in MCF-7 cells in vitro (~75%) and in vivo (~70%). The PKM2 silencing inhibited tumor glycolysis metabolism and further depleted the energy supply for HSPs production, thus overcoming the heat endurance of tumor cells to strengthen ICG-mediated photothermal ablation. Additionally, siPKM2-mediated energy depletion led to tumor cell starvation, which imparted synergistic anti-cancer effect with PTT. This study therefore provides a promising strategy for designing membrane-penetrating siRNA delivery materials, and it renders a unique RNAi-mediated anti-metabolic mechanism in sensitizing PTT and enabling starvation therapy.
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Affiliation(s)
- Juanjuan Dang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123, China
| | - Huan Ye
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123, China
| | - Yongjuan Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123, China
| | - Qiujun Liang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123, China
| | - Xudong Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123, China
| | - Lichen Yin
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123, China.
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Li S, Huang P, Gan J, Ling X, Du X, Liao Y, Li L, Meng Y, Li Y, Bai Y. Dihydroartemisinin represses esophageal cancer glycolysis by down-regulating pyruvate kinase M2. Eur J Pharmacol 2019; 854:232-239. [PMID: 31004604 DOI: 10.1016/j.ejphar.2019.04.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/02/2019] [Accepted: 04/05/2019] [Indexed: 01/30/2023]
Abstract
Esophageal cancer, especially esophageal squamous cell carcinoma (ESCC) threatens so many lives in China every year. Traditional treatment of ESCC has usually been disappointing. The development of novel therapy is worth investigation. We have previously demonstrated that dihydroartemisinin (DHA) has anticancer effect on esophageal cancer. However, the mechanism has not been completely known. In this present study, we explored the effect of DHA on cancer cell glycolysis, also known as Warburg effect. Pyruvate kinase M2 (PKM2) is a key regulatory factor of glycolysis, and our results showed that it is significantly overexpressed in patients with ESCC and ESCC cell lines. In DHA treatment cells, PKM2 was down-regulated and lactate product and glucose uptake were inhibited. Overexpression of PKM2 by lentiviral transfection abrogated the inhibition effect of DHA. These results suggested that DHA might repress esophageal cancer glycolysis partly by down-regulating PKM2 expression. We believe that DHA might be a prospective agent against esophageal cancer.
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Affiliation(s)
- Shumin Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Peng Huang
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Junqing Gan
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Xiaodong Ling
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Xiaoxue Du
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Yuanyu Liao
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Lisha Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Yu Meng
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Yanjing Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China.
| | - Yuxian Bai
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China.
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Feng X, Shi Y, Xie L, Zhang K, Wang X, Liu Q, Wang P. 2‐deoxy‐D‐glucose augments photodynamic therapy induced mitochondrial caspase‐independent apoptosis and energy‐mediated autophagy. Lasers Surg Med 2018; 51:352-362. [DOI: 10.1002/lsm.23020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaolan Feng
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
| | - Yin Shi
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
| | - Lifen Xie
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
| | - Kun Zhang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
| | - Xiaobing Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
| | - Quanhong Liu
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
| | - Pan Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life SciencesShaanxi Normal UniversityXi'anShaanxiChina
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8
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Modulatory roles of glycolytic enzymes in cell death. Biochem Pharmacol 2014; 92:22-30. [PMID: 25034412 DOI: 10.1016/j.bcp.2014.07.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 07/05/2014] [Accepted: 07/07/2014] [Indexed: 02/06/2023]
Abstract
Cancer cells depend on an altered energy metabolism characterized by increased rates of both glycolysis and glutaminolysis. Accordingly, corresponding key metabolic enzymes are overexpressed or hyperactivated. As a result, this newly acquired metabolic profile determines most other cancer hallmarks including resistance to cell death. Recent findings highlighted metabolic enzymes as direct modulators of cell death pathways. Conversely, key mediators of cell death mechanisms are emerging as new binding partners of glycolytic actors; moreover, there is evidence that metabolic regulators re-localize to specific subcellular compartments or organelles to modulate various types of cell demise. The final outcome is the resistance against cell death programs. Current findings give a new meaning to metabolic pathways and allow understanding how they affect cancer-specific pathological alterations. Furthermore, they shed light on potentially targetable functions of metabolic actors to restore susceptibility of cancer cells to death. Here, we discuss an emerging interplay between cell metabolism and cell death, focusing on interactions that may offer new options of targeted therapies in cancer treatment involving more specifically hexokinases and glyceraldehyde-3-phosphate dehydrogenase.
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