PMID- 34589577 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211001 IS - 2372-7705 (Print) IS - 2372-7705 (Electronic) IS - 2372-7705 (Linking) VI - 22 DP - 2021 Sep 24 TI - LRPPRC regulates metastasis and glycolysis by modulating autophagy and the ROS/HIF1-alpha pathway in retinoblastoma. PG - 582-591 LID - 10.1016/j.omto.2021.06.009 [doi] AB - Retinoblastoma (RB) is the most common intraocular tumor among children. Leucine-rich pentatricopeptide repeat (PPR)-motif-containing protein (LRPPRC), a suppressor gene of autophagy, has been proven to play a regulatory role in tumor progression. However, little is known about functional roles and mechanisms of LRPPRC in RB progression. First, we performed a detailed analysis for RB and normal control. The expression of LRPPRC in the RB tissues was significantly higher than that in normal tissues. Moreover, LRPPRC suppression could repress tumor cell migration, invasion, glycolysis, and reactive oxygen species (ROS)/hypoxia-inducible factor-1alpha (HIF1-alpha) pathway activation by mediating autophagy. Furthermore, overexpression of HIF1-alpha partially reversed the above changes induced by LRPPRC knockdown. The regulation of LRPPRC on tumor metastasis and glycolysis was also validated by a xenograft tumor assay. In summary, LRPPRC could regulate metastasis and glycolysis of RB by mediating autophagy suppression and further activating the ROS/HIF1-alpha pathway, and LRPPRC could be a promising prognostic biomarker for RB. CI - (c) 2021 The Authors. FAU - Song, Kun AU - Song K AD - Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China. FAU - Li, Bin AU - Li B AD - National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China. FAU - Chen, Ying-Ying AU - Chen YY AD - Department of Ophthalmology, Hainan General Hospital, Haikou 570000, Hainan Province, China. FAU - Wang, Hua AU - Wang H AD - Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China. AD - Hunan Key Laboratory of Ophthalmology, No. 87 Xiangya Road, Kaifu District, Changsha 410008, Hunan Province, China. FAU - Liu, Kang-Cheng AU - Liu KC AD - Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China. AD - Hunan Key Laboratory of Ophthalmology, No. 87 Xiangya Road, Kaifu District, Changsha 410008, Hunan Province, China. FAU - Tan, Wei AU - Tan W AD - Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China. AD - Hunan Key Laboratory of Ophthalmology, No. 87 Xiangya Road, Kaifu District, Changsha 410008, Hunan Province, China. FAU - Zou, Jing AU - Zou J AD - Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China. AD - Hunan Key Laboratory of Ophthalmology, No. 87 Xiangya Road, Kaifu District, Changsha 410008, Hunan Province, China. LA - eng PT - Journal Article DEP - 20210624 PL - United States TA - Mol Ther Oncolytics JT - Molecular therapy oncolytics JID - 101666776 PMC - PMC8450181 OTO - NOTNLM OT - LRPPRC OT - ROS/HIF1-alpha pathway OT - autophagy OT - glycolysis OT - metastasis OT - retinoblastoma COIS- The authors declare no competing interests. EDAT- 2021/10/01 06:00 MHDA- 2021/10/01 06:01 PMCR- 2021/06/24 CRDT- 2021/09/30 07:18 PHST- 2021/01/07 00:00 [received] PHST- 2021/06/10 00:00 [accepted] PHST- 2021/09/30 07:18 [entrez] PHST- 2021/10/01 06:00 [pubmed] PHST- 2021/10/01 06:01 [medline] PHST- 2021/06/24 00:00 [pmc-release] AID - S2372-7705(21)00089-9 [pii] AID - 10.1016/j.omto.2021.06.009 [doi] PST - epublish SO - Mol Ther Oncolytics. 2021 Jun 24;22:582-591. doi: 10.1016/j.omto.2021.06.009. eCollection 2021 Sep 24.