PMID- 33186350 OWN - NLM STAT- MEDLINE DCOM- 20210104 LR - 20210104 IS - 1545-7885 (Electronic) IS - 1544-9173 (Print) IS - 1544-9173 (Linking) VI - 18 IP - 11 DP - 2020 Nov TI - Nucleotide de novo synthesis increases breast cancer stemness and metastasis via cGMP-PKG-MAPK signaling pathway. PG - e3000872 LID - 10.1371/journal.pbio.3000872 [doi] LID - e3000872 AB - Metabolic reprogramming to fulfill the biosynthetic and bioenergetic demands of cancer cells has aroused great interest in recent years. However, metabolic reprogramming for cancer metastasis has not been well elucidated. Here, we screened a subpopulation of breast cancer cells with highly metastatic capacity to the lung in mice and investigated the metabolic alternations by analyzing the metabolome and the transcriptome, which were confirmed in breast cancer cells, mouse models, and patients' tissues. The effects and the mechanisms of nucleotide de novo synthesis in cancer metastasis were further evaluated in vitro and in vivo. In our study, we report an increased nucleotide de novo synthesis as a key metabolic hallmark in metastatic breast cancer cells and revealed that enforced nucleotide de novo synthesis was enough to drive the metastasis of breast cancer cells. An increased key metabolite of de novo synthesis, guanosine-5'-triphosphate (GTP), is able to generate more cyclic guanosine monophosphate (cGMP) to activate cGMP-dependent protein kinases PKG and downstream MAPK pathway, resulting in the increased tumor cell stemness and metastasis. Blocking de novo synthesis by silencing phosphoribosylpyrophosphate synthetase 2 (PRPS2) can effectively decrease the stemness of breast cancer cells and reduce the lung metastasis. More interestingly, in breast cancer patients, the level of plasma uric acid (UA), a downstream metabolite of purine, is tightly correlated with patient's survival. Our study uncovered that increased de novo synthesis is a metabolic hallmark of metastatic breast cancer cells and its metabolites can regulate the signaling pathway to promote the stemness and metastasis of breast cancer. FAU - Lv, Yajing AU - Lv Y AUID- ORCID: 0000-0002-8253-3470 AD - School of Medicine, Nankai University, Tianjin, China. FAU - Wang, Xiaoshuang AU - Wang X AD - School of Medicine, Nankai University, Tianjin, China. FAU - Li, Xiaoyu AU - Li X AD - School of Medicine, Nankai University, Tianjin, China. FAU - Xu, Guangwei AU - Xu G AD - Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China. FAU - Bai, Yuting AU - Bai Y AD - School of Medicine, Nankai University, Tianjin, China. FAU - Wu, Jiayi AU - Wu J AD - School of Medicine, Nankai University, Tianjin, China. FAU - Piao, Yongjun AU - Piao Y AD - School of Medicine, Nankai University, Tianjin, China. FAU - Shi, Yi AU - Shi Y AUID- ORCID: 0000-0003-2530-410X AD - School of Medicine, Nankai University, Tianjin, China. FAU - Xiang, Rong AU - Xiang R AUID- ORCID: 0000-0003-3487-7348 AD - School of Medicine, Nankai University, Tianjin, China. AD - The International Collaborative Laboratory for Biological Medicine of the Ministry of Education, Nankai University School of Medicine, Tianjin, China. FAU - Wang, Longlong AU - Wang L AUID- ORCID: 0000-0002-3932-1253 AD - School of Medicine, Nankai University, Tianjin, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201113 PL - United States TA - PLoS Biol JT - PLoS biology JID - 101183755 RN - 0 (Nucleotides) RN - 0 (Purines) RN - EC 2.7.11.12 (Cyclic GMP-Dependent Protein Kinases) RN - EC 2.7.6.1 (Ribose-Phosphate Pyrophosphokinase) RN - H2D2X058MU (Cyclic GMP) RN - W60KTZ3IZY (purine) SB - IM MH - Adult MH - Animals MH - Breast Neoplasms/genetics/*metabolism MH - Cell Line, Tumor MH - China MH - Cyclic GMP/metabolism MH - Cyclic GMP-Dependent Protein Kinases/metabolism MH - Female MH - Gene Expression Profiling/methods MH - Humans MH - MAP Kinase Signaling System/physiology MH - Metabolomics/methods MH - Mice MH - Mice, Inbred BALB C MH - Neoplastic Stem Cells/*metabolism MH - Nucleotides/biosynthesis/*metabolism MH - Purines MH - Ribose-Phosphate Pyrophosphokinase/metabolism MH - Signal Transduction PMC - PMC7688141 COIS- The authors have declared that no competing interests exist. EDAT- 2020/11/14 06:00 MHDA- 2021/01/05 06:00 PMCR- 2020/11/13 CRDT- 2020/11/13 17:08 PHST- 2020/02/08 00:00 [received] PHST- 2020/09/24 00:00 [accepted] PHST- 2020/11/25 00:00 [revised] PHST- 2020/11/14 06:00 [pubmed] PHST- 2021/01/05 06:00 [medline] PHST- 2020/11/13 17:08 [entrez] PHST- 2020/11/13 00:00 [pmc-release] AID - PBIOLOGY-D-20-00322 [pii] AID - 10.1371/journal.pbio.3000872 [doi] PST - epublish SO - PLoS Biol. 2020 Nov 13;18(11):e3000872. doi: 10.1371/journal.pbio.3000872. eCollection 2020 Nov.