Phosphoglycerate dehydrogenase promotes proliferation and bortezomib resistance through increasing reduced glutathione synthesis in multiple myeloma
Xuan Wu
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
These authors contributed equally to this work.Search for more papers by this authorJiliang Xia
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
These authors contributed equally to this work.Search for more papers by this authorJingyu Zhang
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorYinghong Zhu
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorYangbowen Wu
Xiangya School of Public Health, Central South University, Changsha, Hunan, China
Search for more papers by this authorJiaojiao Guo
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorShilian Chen
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorQian Lei
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorBin Meng
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorChunmei Kuang
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorXiangling Feng
Xiangya School of Public Health, Central South University, Changsha, Hunan, China
Search for more papers by this authorYanjuan He
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Search for more papers by this authorYi Shen
Department of Orthopaedic Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
Search for more papers by this authorXin Li
Department of Hematology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
Search for more papers by this authorLugui Qiu
State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
Search for more papers by this authorCorresponding Author
Guancheng Li
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Correspondence: Wen Zhou and Guancheng Li, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
E-mails: [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Wen Zhou
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Correspondence: Wen Zhou and Guancheng Li, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
E-mails: [email protected]; [email protected]
Search for more papers by this authorXuan Wu
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
These authors contributed equally to this work.Search for more papers by this authorJiliang Xia
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
These authors contributed equally to this work.Search for more papers by this authorJingyu Zhang
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorYinghong Zhu
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorYangbowen Wu
Xiangya School of Public Health, Central South University, Changsha, Hunan, China
Search for more papers by this authorJiaojiao Guo
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorShilian Chen
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorQian Lei
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorBin Meng
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorChunmei Kuang
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Search for more papers by this authorXiangling Feng
Xiangya School of Public Health, Central South University, Changsha, Hunan, China
Search for more papers by this authorYanjuan He
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Search for more papers by this authorYi Shen
Department of Orthopaedic Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
Search for more papers by this authorXin Li
Department of Hematology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
Search for more papers by this authorLugui Qiu
State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
Search for more papers by this authorCorresponding Author
Guancheng Li
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Correspondence: Wen Zhou and Guancheng Li, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
E-mails: [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Wen Zhou
Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
Correspondence: Wen Zhou and Guancheng Li, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
E-mails: [email protected]; [email protected]
Search for more papers by this authorSummary
The serine synthesis pathway (SSP) is active in multiple cancers. Previous study has shown that bortezomib (BTZ) resistance is associated with an increase in the SSP in multiple myeloma (MM) cells; however, the underlying mechanisms of SSP-induced BTZ resistance remain unclear. In this study, we found that phosphoglycerate dehydrogenase (PHGDH), the first rate-limiting enzyme in the SSP, was significantly elevated in CD138+ cells derived from patients with relapsed MM. Moreover, high PHGDH conferred inferior survival in MM. We also found that overexpression of PHDGH in MM cells led to increased cell growth, tumour formation, and resistance to BTZ in vitro and in vivo, while inhibition of PHGDH by short hairpin RNA or NCT-503, a specific inhibitor of PHGDH, inhibited cell growth and BTZ resistance in MM cells. Subsequent mechanistic studies demonstrated PHGDH decreased reactive oxygen species (ROS) through increasing reduced glutathione (GSH) synthesis, thereby promoting cell growth and BTZ resistance in MM cells. Furthermore, adding GSH to PHGDH silenced MM cells reversed S phase arrest and BTZ-induced cell death. These findings support a mechanism in which PHGDH promotes proliferation and BTZ resistance through increasing GSH synthesis in MM cells. Therefore, targeting PHGDH is a promising strategy for MM therapy.
Conflict of interest
The authors have no conflicts of interest to disclose.
Supporting Information
Filename | Description |
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bjh16503-sup-0001-FigS1.pdfPDF document, 172.2 KB |
Fig S1. PHGDH level is positively correlated with bortezomib (BTZ) resistance in MM cells. (A) The detailed data of the enrichment analysis of metabolic pathways. (B) The abundance ratios of serine, glycine, and threonine between conditioned mediums (CM) derived from KMS28-PE and ARP1 MM cell lines and fresh medium (FM). (C) Identification of drug-resistant MM cell lines (BTZ-resistant cell line ANBL6 BR and dexamethasone-resistant cell line MM1.R). nsP > 0·05, *P < 0·05, **P < 0·01, ***P < 0·001. (D) The protein levels of PHGDH and β-actin in ARP1, KMS28-PE, MM1.S, OCI-My5, KMS11, and ANBL6 MM cell lines were examined by Western blotting. (E) CCK-8 assays of ARP1, KMS28-PE, MM1.S, OCI-My5, KMS11, and ANBL6 MM cell lines treated with different doses of BTZ (0, 1·25, 2·5, 5, 10, 20, 40, 80, 160 nmol/l) for 2 days. (F) The correlation between PHGDH protein levels and IC50 values of BTZ in ARP1, KMS28-PE, MM1.S, OCI-My5, KMS11 and ANBL6 MM cell lines. |
bjh16503-sup-0002-FigS2.pdfPDF document, 209.6 KB |
Fig S2. Knockdown PHGDH by shRNA2 inhibits MM cell growth and induces MM cell apoptosis. (A) Western blots confirm PHGDH was knocked down by PHGDH shRNA2 in both ARP1 and KMS28-PE MM cell lines. (B) Growth curves of KMS28-PE Ctrl, KMS28-PE PHGDH shRNA2, ARP1 Ctrl, and ARP1 PHGDH shRNA2 MM cell lines by counting alive cells after trypan blue exclusion. nsP > 0·05, *P < 0·05, **P < 0·01. (C) Cell cycle assays of KMS28-PE Ctrl, KMS28-PE PHGDH shRNA1, ARP1 Ctrl, and ARP1 PHGDH shRNA1 MM cell lines. Assessment of cell apoptosis by using PE-Annexin V/7-AAD staining in KMS28-PE Ctrl, KMS28-PE PHGDH shRNA2, ARP1 Ctrl, and ARP1 PHGDH shRNA2 MM cell lines. |
bjh16503-sup-0003-FigS3.pdfPDF document, 188.7 KB |
Fig S3. Overexpression of PHGDH prevents bortezomib (BTZ) induced ER-stress and autophagy. (A) Cell cycle assays of KMS28-PE empty vector (EV), KMS28-PE PHGDH overexpressing (OE), ARP1 EV, and ARP1 PHGDH OE MM cell lines. (B) Western bots of XBP1s, LC3B, and β-actin in KMS28-PE EV, KMS28-PE PHGDH OE, ARP1 EV, and ARP1 PHGDH OE after treatment with or without BTZ (10 nmol/l) for 2 days. |
bjh16503-sup-0004-FigS4.pdfPDF document, 177 KB |
Fig S4. Addition of glycine or GSH promotes bortezomib (BTZ) resistance in ANBL6. (A) ANBL6 MM cells were pre-treated with glycine (10 mg/ml) or GSH (2 mmol/l) for 24 h followed by BTZ treatment for additional 48 h, then CCK-8 assay was performed to examine cell viability. nsP > 0·05, **P < 0·01, ***P < 0·001. (B) Cell cycle assays of KMS28-PE PHGDH shRNA1 and ARP1 PHGDH shRNA1 treated with or without GSH (2 mmol/l) for 2 days. |
bjh16503-sup-0005-TableS1.docWord document, 86 KB |
Table SI. The detailed data of the metabolic pathway analysis. |
bjh16503-sup-0006-TableS2.docWord document, 73 KB |
Table SII. Clinical characteristics of healthy donors and patients with MM. |
bjh16503-sup-0007-TableS3.docWord document, 31.5 KB |
Table SIII. The list of primer sequences. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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