PMID- 33008471 OWN - NLM STAT- MEDLINE DCOM- 20210618 LR - 20210618 IS - 1757-6512 (Electronic) IS - 1757-6512 (Linking) VI - 11 IP - 1 DP - 2020 Oct 2 TI - Stem cell therapies for periodontal tissue regeneration: a network meta-analysis of preclinical studies. PG - 427 LID - 10.1186/s13287-020-01938-7 [doi] LID - 427 AB - BACKGROUND: Periodontal tissue regeneration (PTR) is the ultimate goal of periodontal therapy. Currently, stem cell therapy is considered a promising strategy for achieving PTR. However, there is still no conclusive comparison that distinguishes clear hierarchies among different kinds of stem cells. METHODS: A systematic review and network meta-analysis (NMA) was performed using MEDLINE (via PubMed), EMBASE, and Web of Science up to February 2020. Preclinical studies assessing five types of stem cells for PTR were included; the five types of stem cells included periodontal ligament-derived stem cells (PDLSCs), bone marrow-derived stem cells (BMSCs), adipose tissue-derived stem cells (ADSCs), dental pulp-derived stem cells (DPSCs), and gingival-derived stem cells (GMSCs). The primary outcomes were three histological indicators with continuous variables: newly formed alveolar bone (NB), newly formed cementum (NC), and newly formed periodontal ligament (NPDL). We performed pairwise meta-analyses using a random-effects model and then performed a random-effects NMA using a multivariate meta-analysis model. RESULTS: Sixty preclinical studies assessing five different stem cell-based therapies were identified. The NMA showed that in terms of NB, PDLSCs (standardized mean difference 1.87, 95% credible interval 1.24 to 2.51), BMSCs (1.88, 1.17 to 2.59), and DPSCs (1.69, 0.64 to 2.75) were statistically more efficacious than cell carriers (CCs). In addition, PDLSCs were superior to GMSCs (1.49, 0.04 to 2.94). For NC, PDLSCs (2.18, 1.48 to 2.87), BMSCs (2.11, 1.28 to 2.94), and ADSCs (1.55, 0.18 to 2.91) were superior to CCs. For NPDL, PDLSCs (1.69, 0.92 to 2.47) and BMSCs (1.41, 0.56 to 2.26) were more efficacious than CCs, and PDLSCs (1.26, 0.11 to 2.42) were superior to GMSCs. The results of treatment hierarchies also demonstrated that the two highest-ranked interventions were PDLSCs and BMSCs. CONCLUSION: PDLSCs and BMSCs were the most effective and well-documented stem cells for PTR among the five kinds of stem cells evaluated in this study, and there was no statistical significance between them. To translate the stem cell therapies for PTR successfully in the clinic, future studies should utilize robust experimental designs and reports. FAU - Li, Qiang AU - Li Q AD - Department of Oral Implantology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. AD - Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. FAU - Yang, Guangwen AU - Yang G AD - Department of Oral Implantology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. AD - Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. FAU - Li, Jialing AU - Li J AD - Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. AD - Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. FAU - Ding, Meng AU - Ding M AD - Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. FAU - Zhou, Na AU - Zhou N AD - Department of Oral Implantology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. FAU - Dong, Heng AU - Dong H AUID- ORCID: 0000-0002-2537-7950 AD - Department of Oral Implantology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. dongheng90@smail.nju.edu.cn. AD - Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. dongheng90@smail.nju.edu.cn. FAU - Mou, Yongbin AU - Mou Y AD - Department of Oral Implantology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China. yongbinmou@163.com. LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't PT - Systematic Review DEP - 20201002 PL - England TA - Stem Cell Res Ther JT - Stem cell research & therapy JID - 101527581 SB - IM MH - Cell Differentiation MH - Cells, Cultured MH - Network Meta-Analysis MH - *Periodontal Ligament MH - *Stem Cells PMC - PMC7531120 OTO - NOTNLM OT - Network meta-analysis OT - Periodontal defects OT - Periodontal tissue regeneration OT - Periodontitis OT - Stem cell therapy OT - Tissue engineering COIS- The authors declare that they have no competing interests. EDAT- 2020/10/04 06:00 MHDA- 2021/06/22 06:00 PMCR- 2020/10/02 CRDT- 2020/10/03 05:21 PHST- 2020/06/17 00:00 [received] PHST- 2020/09/16 00:00 [accepted] PHST- 2020/10/03 05:21 [entrez] PHST- 2020/10/04 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2020/10/02 00:00 [pmc-release] AID - 10.1186/s13287-020-01938-7 [pii] AID - 1938 [pii] AID - 10.1186/s13287-020-01938-7 [doi] PST - epublish SO - Stem Cell Res Ther. 2020 Oct 2;11(1):427. doi: 10.1186/s13287-020-01938-7.