野生型胃肠间质瘤的临床病理特征及研究进展
Clinicopathological Features and Research Progress of Wild-Type Gastrointestinal Stromal Tumors
DOI: 10.12677/acm.2026.1631133, PDF,   
作者: 马 超:重庆医科大学第四临床学院,重庆;聂 刚*:重庆医科大学附属大学城医院消化内科,重庆
关键词: 野生型胃肠间质瘤分子分型分子诊断靶向治疗精准诊疗Wild-Type Gastrointestinal Stromal Tumor Molecular Subtyping Molecular Diagnosis Targeted Therapy Precision Diagnosis and Treatment
摘要: 本研究探讨野生型胃肠间质瘤(wt-GIST)的临床病理特征、分子分型、检测技术及治疗进展,为其精准诊疗提供参考。胃肠间质瘤(GIST)中10%~15%为无c-KIT/血小板源性生长因子受体α (PDGFRA)经典基因突变的wt-GIST,其分子机制、临床表型及治疗响应与突变型GIST差异显著。二代测序(NGS)推动了wt-GIST分子分型体系的完善,该肿瘤以SDHB免疫组化(IHC)为核心分为SDH缺陷型和SDH功能正常型,前者因SDH复合体功能丧失引发代谢重编程与表观遗传修饰异常,后者则以RAS-MAPK等经典信号通路异常激活为主要驱动机制。手术是局限性wt-GIST的根治核心,SDH缺陷型不推荐常规淋巴结清扫,传统酪氨酸激酶抑制剂(TKI)疗效有限,奥雷巴替尼等新型靶向药在SDH缺陷型中展现突破性疗效,免疫联合治疗及CD36代谢靶向治疗为新方向。目前wt-GIST仍存在诊疗策略不完善、部分亚型缺乏有效治疗手段等瓶颈,未来需依托多组学技术深化研究,完善精准诊疗体系。
Abstract: This study investigated the clinicopathological features, molecular subtyping, detection technologies and treatment progress of wild-type gastrointestinal stromal tumors (wt-GIST) to provide a reference for its precision diagnosis and treatment. Approximately 10% to 15% of gastrointestinal stromal tumors (GISTs) are wt-GISTs without classic c-KIT/platelet-derived growth factor receptor α (PDGFRA) gene mutations, which exhibit distinct molecular mechanisms, clinical phenotypes and treatment responses compared with mutant GISTs. Next-Generation Sequencing (NGS) has promoted the improvement of the molecular subtyping system for wt-GISTs. Based on succinate dehydrogenase B (SDHB) immunohistochemistry (IHC), wt-GISTs are classified into two major subtypes: SDH-deficient and SDH-proficient. The former is driven by metabolic reprogramming and aberrant epigenetic modifications caused by loss of SDH complex function, whereas the latter is mainly characterized by abnormal activation of classic signaling pathways such as RAS-MAPK. Surgical resection is the cornerstone of curative therapy for localized wt-GISTs, and routine lymph node dissection is not recommended for SDH-deficient subtypes. Conventional tyrosine kinase inhibitors (TKIs) show limited therapeutic efficacy, while novel targeted agents such as olverembatinib have demonstrated groundbreaking efficacy in the treatment of SDH-deficient wt-GISTs. Immune combination therapy and CD36-mediated metabolic targeted therapy have emerged as promising new therapeutic directions. At present, the clinical management of wt-GISTs still faces bottlenecks including incomplete diagnosis and treatment strategies and the lack of effective therapeutic approaches for some subtypes. In the future, it is necessary to conduct in-depth research relying on multi-omics technologies and further improve the precision diagnosis and treatment system for wt-GISTs.
文章引用:马超, 聂刚. 野生型胃肠间质瘤的临床病理特征及研究进展[J]. 临床医学进展, 2026, 16(3): 3272-3281. https://doi.org/10.12677/acm.2026.1631133

参考文献

[1] 童昕, 蒋祈, 张鹏, 等. 野生型胃肠间质瘤的特征与靶向治疗[J]. 中华胃肠外科杂志, 2020, 23(9): 907-910.
[2] Sun, L., Li, J., Liu, H., Chen, J., Wang, S., Deng, R., et al. (2026) Genomic Profile and Clinicopathologic Analyses of Wild-Type Gastrointestinal Stromal Tumors. Molecular Cancer Research. [Google Scholar] [CrossRef
[3] Søreide, K., Sandvik, O.M., Søreide, J.A., Giljaca, V., Jureckova, A. and Bulusu, V.R. (2016) Global Epidemiology of Gastrointestinal Stromal Tumours (GIST): A Systematic Review of Population-Based Cohort Studies. Cancer Epidemiology, 40, 39-46. [Google Scholar] [CrossRef] [PubMed]
[4] 白怡冰, 杨佳妮, 方琳. 野生型胃肠道间质瘤的研究进展[J]. 实用肿瘤学杂志, 2020, 34(6): 524-529.
[5] Khan, T.M., Verbus, E.A., Rossi, A.J., Hernandez, J.M., Davis, J.L., Coakley, B.A., et al. (2022) Patient Demographics, Clinicopathologic Features, and Outcomes in Wild-Type Gastrointestinal Stromal Tumor: A National Cohort Analysis. Scientific Reports, 12, Article No. 5774. [Google Scholar] [CrossRef] [PubMed]
[6] Kalfusova, A., Linke, Z., Kalinova, M., Krskova, L., Hilska, I., Szabova, J., et al. (2019) Gastrointestinal Stromal Tumors—Summary of Mutational Status of the Primary/Secondary KIT/PDGFRA Mutations, BRAF Mutations and SDH Defects. PathologyResearch and Practice, 215, Article ID: 152708. [Google Scholar] [CrossRef] [PubMed]
[7] Alvarez, C.S., Piazuelo, M.B., Fleitas-Kanonnikoff, T., Ruhl, J., Pérez-Fidalgo, J.A. and Camargo, M.C. (2024) Incidence and Survival Outcomes of Gastrointestinal Stromal Tumors. JAMA Network Open, 7, e2428828. [Google Scholar] [CrossRef] [PubMed]
[8] Miettinen, M., Wang, Z., Sarlomo-Rikala, M., Osuch, C., Rutkowski, P. and Lasota, J. (2011) Succinate Dehydrogenase-Deficient GISTs: A Clinicopathologic, Immunohistochemical, and Molecular Genetic Study of 66 Gastric GISTs with Predilection to Young Age. American Journal of Surgical Pathology, 35, 1712-1721. [Google Scholar] [CrossRef] [PubMed]
[9] Cuvelier, C., Brahmi, M., Sobhani, I., Verret, B., Grancher, A., Penel, N., et al. (2025) Clinical Description and Development of a Prognostic Score for Neurofibromatosis Type 1 (NF1)-Associated GISTs: A Retrospective Study from the NETSARC+. ESMO Open, 10, Article ID: 104477. [Google Scholar] [CrossRef] [PubMed]
[10] 秦玲, 李道明. 野生型胃肠道间质瘤的临床病理特征及预后影响因素分析[J]. 河南医学研究, 2022, 31(20): 3707-3711.
[11] Serrano, C., Martín-Broto, J., Asencio-Pascual, J.M., López-Guerrero, J.A., Rubió-Casadevall, J., Bagué, S., et al. (2023) 2023 GEIS Guidelines for Gastrointestinal Stromal Tumors. Therapeutic Advances in Medical Oncology, 15, 1-18. [Google Scholar] [CrossRef] [PubMed]
[12] Charville, G.W. and Longacre, T.A. (2017) Surgical Pathology of Gastrointestinal Stromal Tumors: Practical Implications of Morphologic and Molecular Heterogeneity for Precision Medicine. Advances in Anatomic Pathology, 24, 336-353. [Google Scholar] [CrossRef] [PubMed]
[13] 陈振光, 罗瑶, 吴松阳, 等. Ⅰ型神经纤维瘤病相关胃肠间质瘤的临床病理特征及靶向治疗研究[J]. 浙江临床医学, 2025, 27(2): 259-261, 265.
[14] 田野, 高静, 李健, 等. 180例野生型胃肠间质瘤患者的临床病理特征分析[J]. 中华胃肠外科杂志, 2015, 18(4): 342-345.
[15] 《胃肠间质瘤病理诊断临床实践指南(2022版)》编写专家委员会. 胃肠间质瘤病理诊断临床实践指南(2022版) [J]. 中华病理学杂志, 2022, 51(10): 959-969.
[16] Florou, V., Jacobs, M.F., Casey, R., Evans, D., Owens, B., Raygada, M., et al. (2025) A Review of Genomic Testing and SDH‐Deficiency in Gastrointestinal Stromal Tumors: Getting to the Gist. Cancer Medicine, 14, e70669. [Google Scholar] [CrossRef] [PubMed]
[17] Neppala, P., Banerjee, S., Fanta, P.T., Yerba, M., Porras, K.A., Burgoyne, A.M., et al. (2019) Current Management of Succinate Dehydrogenase–deficient Gastrointestinal Stromal Tumors. Cancer and Metastasis Reviews, 38, 525-535. [Google Scholar] [CrossRef] [PubMed]
[18] Ibrahim, A. and Chopra, S. (2019) Succinate Dehydrogenase-Deficient Gastrointestinal Stromal Tumors. Archives of Pathology & Laboratory Medicine, 144, 655-660. [Google Scholar] [CrossRef] [PubMed]
[19] Dedousis, D., Gadra, E., Van Galen, J. and von Mehren, M. (2025) Recent Advances in Succinate Dehydrogenase Deficient Gastrointestinal Stromal Tumor Systemic Therapies. Current Treatment Options in Oncology, 26, 227-240. [Google Scholar] [CrossRef] [PubMed]
[20] Killian, J.K., Kim, S.Y., Miettinen, M., Smith, C., Merino, M., Tsokos, M., et al. (2013) Succinate Dehydrogenase Mutation Underlies Global Epigenomic Divergence in Gastrointestinal Stromal Tumor. Cancer Discovery, 3, 648-657. [Google Scholar] [CrossRef] [PubMed]
[21] Indio, V., Schipani, A., Nannini, M., Urbini, M., Rizzo, A., De Leo, A., et al. (2021) Gene Expression Landscape of SDH-Deficient Gastrointestinal Stromal Tumors. Journal of Clinical Medicine, 10, Article 1057. [Google Scholar] [CrossRef] [PubMed]
[22] Pantaleo, M.A., Nannini, M., Corless, C.L. and Heinrich, M.C. (2014) Quadruple Wild‐Type (WT) GIST: Defining the Subset of GIST That Lacks Abnormalities of KIT, PDGFRA, SDH, or RAS Signaling Pathways. Cancer Medicine, 4, 101-103. [Google Scholar] [CrossRef] [PubMed]
[23] Qiu, H., Zhou, Z., Zhou, Y., Chen, J., Wan, X., Li, N., et al. (2024) Updated Efficacy Results of Olverembatinib (HQP1351) in Patients with Tyrosine Kinase Inhibitor (TKI)-Resistant Succinate Dehydrogenase (SDH)-Deficient Gastrointestinal Stromal Tumors (GIST) and Paraganglioma.. Journal of Clinical Oncology, 42, 11502-11502. [Google Scholar] [CrossRef
[24] Brčić, I., Argyropoulos, A. and Liegl-Atzwanger, B. (2021) Update on Molecular Genetics of Gastrointestinal Stromal Tumors. Diagnostics, 11, Article 194. [Google Scholar] [CrossRef] [PubMed]
[25] Gasparotto, D., Rossi, S., Polano, M., Tamborini, E., Lorenzetto, E., Sbaraglia, M., et al. (2017) Quadruple-Negative GIST Is a Sentinel for Unrecognized Neurofibromatosis Type 1 Syndrome. Clinical Cancer Research, 23, 273-282. [Google Scholar] [CrossRef] [PubMed]
[26] Schaefer, I., Wang, Y., Liang, C., Bahri, N., Quattrone, A., Doyle, L., et al. (2017) MAX Inactivation Is an Early Event in GIST Development That Regulates P16 and Cell Proliferation. Nature Communications, 8, Article No. 14674. [Google Scholar] [CrossRef] [PubMed]
[27] Miettinen, M., Fetsch, J.F., Sobin, L.H. and Lasota, J. (2006) Gastrointestinal Stromal Tumors in Patients with Neurofibromatosis 1: A Clinicopathologic and Molecular Genetic Study of 45 Cases. The American Journal of Surgical Pathology, 30, 90-96. [Google Scholar] [CrossRef] [PubMed]
[28] Belinsky, M.G., Rink, L., Cai, K.Q., Capuzzi, S.J., Hoang, Y., Chien, J., et al. (2015) Somatic Loss of Function Mutations in Neurofibromin 1 and MYC Associated Factor X Genes Identified by Exome-Wide Sequencing in a Wild-Type GIST Case. BMC Cancer, 15, Article No. 887. [Google Scholar] [CrossRef] [PubMed]
[29] Blay, J., Kang, Y., Nishida, T. and von Mehren, M. (2021) Gastrointestinal Stromal Tumours. Nature Reviews Disease Primers, 7, Article No. 22. [Google Scholar] [CrossRef] [PubMed]
[30] Cao, L., Tian, W., Zhao, Y., Song, P., Zhao, J., Wang, C., et al. (2024) Gene Mutations in Gastrointestinal Stromal Tumors: Advances in Treatment and Mechanism Research. Global Medical Genetics, 11, 251-262. [Google Scholar] [CrossRef] [PubMed]
[31] Rossi, S., Gasparotto, D., Miceli, R., Toffolatti, L., Gallina, G., Scaramel, E., et al. (2015) KIT, PDGFRA, and BRAF Mutational Spectrum Impacts on the Natural History of Imatinib-Naive Localized GIST: A Population-Based Study. American Journal of Surgical Pathology, 39, 922-930. [Google Scholar] [CrossRef] [PubMed]
[32] Huss, S., Pasternack, H., Ihle, M.A., Merkelbach-Bruse, S., Heitkötter, B., Hartmann, W., et al. (2017) Clinicopathological and Molecular Features of a Large Cohort of Gastrointestinal Stromal Tumors (GISTs) and Review of the Literature: BRAF Mutations in KIT/PDGFRA Wild-Type Gists Are Rare Events. Human Pathology, 62, 206-214. [Google Scholar] [CrossRef] [PubMed]
[33] Agaram, N.P., Wong, G.C., Guo, T., Maki, R.G., Singer, S., DeMatteo, R.P., et al. (2008) Novel V600E BRAF Mutations in Imatinib‐Naive and Imatinib‐Resistant Gastrointestinal Stromal Tumors. Genes, Chromosomes and Cancer, 47, 853-859. [Google Scholar] [CrossRef] [PubMed]
[34] Nelson, B.E., Roszik, J., Janku, F., Hong, D.S., Kato, S., Naing, A., et al. (2023) BRAF V600e-Mutant Cancers Treated with Vemurafenib Alone or in Combination with Everolimus, Sorafenib, or Crizotinib or with Paclitaxel and Carboplatin (VEM-PLUS) Study. npj Precision Oncology, 7, Article No. 19. [Google Scholar] [CrossRef] [PubMed]
[35] Brenca, M., Rossi, S., Polano, M., Gasparotto, D., Zanatta, L., Racanelli, D., et al. (2016) Transcriptome Sequencing Identifies ETV6-NTRK3 as a Gene Fusion Involved in Gist. The Journal of Pathology, 238, 543-549. [Google Scholar] [CrossRef] [PubMed]
[36] Heinrich, M.C., Kang, G., Warrick, A., Corless, C.L. and Beadling, C. (2016) Oncogenic Receptor Tyrosine Kinase (RTK) Translocations in a Subset of Quadruple Wild-Type Gastrointestinal Stromal Tumors (GIST). Journal of Clinical Oncology, 34, 11012-11012. [Google Scholar] [CrossRef
[37] Drilon, A., Laetsch, T.W., Kummar, S., DuBois, S.G., Lassen, U.N., Demetri, G.D., et al. (2018) Efficacy of Larotrectinib in TRK Fusion-Positive Cancers in Adults and Children. New England Journal of Medicine, 378, 731-739. [Google Scholar] [CrossRef] [PubMed]
[38] Qian, H., Yan, N., Hu, X., Jiang, J., Cao, Z. and Shen, D. (2022) Molecular Portrait of Gists Associated with Clinicopathological Features: A Retrospective Study with Molecular Analysis by a Custom 9-Gene Targeted Next-Generation Sequencing Panel. Frontiers in Genetics, 13, Article 864499. [Google Scholar] [CrossRef] [PubMed]
[39] Poveda, A., García del Muro, X., López-Guerrero, J.A., Cubedo, R., Martínez, V., Romero, I., et al. (2017) GEIS Guidelines for Gastrointestinal Sarcomas (GIST). Cancer Treatment Reviews, 55, 107-119. [Google Scholar] [CrossRef] [PubMed]
[40] Martin Broto, J., Valverde, C., Hindi, N., Vincenzi, B., Martinez-Trufero, J., Grignani, G., et al. (2021) 1520O REGISTRI: Regorafenib in First-Line of KIT/PDGFR Wild Type Advanced GIST: Capatalize the a Spanish (GEIS), Italian (ISG) and French Sarcoma Group (FSG) Phase II Trial. Annals of Oncology, 32, S1111. [Google Scholar] [CrossRef
[41] Atiq, M.A., Davis, J.L., Hornick, J.L., Dickson, B.C., Fletcher, C.D.M., Fletcher, J.A., et al. (2021) Mesenchymal Tumors of the Gastrointestinal Tract with NTRK Rearrangements: A Clinicopathological, Immunophenotypic, and Molecular Study of Eight Cases, Emphasizing Their Distinction from Gastrointestinal Stromal Tumor (GIST). Modern Pathology, 34, 95-103. [Google Scholar] [CrossRef] [PubMed]
[42] Hulse, D.G.E., Harper, I., Tan, F., Gillett, D., Warnes, V., McLean, M., et al. (2025) In Vivo Gastrin Releasing Peptide Receptor Expression in SDH Deficient Wild-Type Gastrointestinal Stromal Tumours (GIST): Potential for Theranostic Applications. EJNMMI Research, 15, Article No. 132. [Google Scholar] [CrossRef
[43] Martin-Broto, J., Valverde, C., Hindi, N., Vincenzi, B., Martinez-Trufero, J., Grignani, G., et al. (2023) REGISTRI: Regorafenib in First-Line of KIT/PDGFRA Wild Type Metastatic GIST: A Collaborative Spanish (GEIS), Italian (ISG) and French Sarcoma Group (FSG) Phase II Trial. Molecular Cancer, 22, Article No. 127. [Google Scholar] [CrossRef] [PubMed]
[44] Judson, I., Jones, R.L., Wong, N.A.C.S., Dileo, P., Bulusu, R., Smith, M., et al. (2024) Gastrointestinal Stromal Tumour (GIST): British Sarcoma Group Clinical Practice Guidelines. British Journal of Cancer, 132, 1-10. [Google Scholar] [CrossRef] [PubMed]
[45] Serrano, C., Mariño-Enríquez, A., Tao, D.L., Ketzer, J., Eilers, G., Zhu, M., et al. (2019) Complementary Activity of Tyrosine Kinase Inhibitors against Secondary Kit Mutations in Imatinib-Resistant Gastrointestinal Stromal Tumours. British Journal of Cancer, 120, 612-620. [Google Scholar] [CrossRef] [PubMed]
[46] Weldon, C.B., Madenci, A.L., Boikos, S.A., Janeway, K.A., George, S., von Mehren, M., et al. (2017) Surgical Management of Wild-Type Gastrointestinal Stromal Tumors: A Report from the National Institutes of Health Pediatric and Wildtype GIST Clinic. Journal of Clinical Oncology, 35, 523-528. [Google Scholar] [CrossRef] [PubMed]
[47] Nishida, T., Naito, Y., Takahashi, T., Saito, T., Hisamori, S., Manaka, D., et al. (2024) Molecular and Clinicopathological Features of KIT/PDGFRA Wild-Type Gastrointestinal Stromal Tumors. Cancer Science, 115, 894-904. [Google Scholar] [CrossRef] [PubMed]
[48] Salvi, P.F., Lorenzon, L., Caterino, S., Antolino, L., Antonelli, M.S. and Balducci, G. (2013) Gastrointestinal Stromal Tumors Associated with Neurofibromatosis 1: A Single Centre Experience and Systematic Review of the Literature Including 252 Cases. International Journal of Surgical Oncology, 2013, Article ID: 398570. [Google Scholar] [CrossRef] [PubMed]
[49] Corless, C.L., Fletcher, J.A. and Heinrich, M.C. (2004) Biology of Gastrointestinal Stromal Tumors. Journal of Clinical Oncology, 22, 3813-3825. [Google Scholar] [CrossRef] [PubMed]
[50] Boikos, S.A., Pappo, A.S., Killian, J.K., LaQuaglia, M.P., Weldon, C.B., George, S., et al. (2016) Molecular Subtypes of KIT/PDGFRA Wild-Type Gastrointestinal Stromal Tumors: A Report from the National Institutes of Health Gastrointestinal Stromal Tumor Clinic. JAMA Oncology, 2, 922-928. [Google Scholar] [CrossRef] [PubMed]
[51] Nannini, M., Urbini, M., Astolfi, A., Biasco, G. and Pantaleo, M.A. (2017) The Progressive Fragmentation of the KIT/PDGFRA Wild-Type (WT) Gastrointestinal Stromal Tumors (GIST). Journal of Translational Medicine, 15, Article No. 113. [Google Scholar] [CrossRef] [PubMed]
[52] Corless, C.L., Schroeder, A., Griffith, D., Town, A., McGreevey, L., Harrell, P., et al. (2005) PDGFRα Mutations in Gastrointestinal Stromal Tumors: Frequency, Spectrum and in Vitro Sensitivity to Imatinib. Journal of Clinical Oncology, 23, 5357-5364. [Google Scholar] [CrossRef] [PubMed]
[53] Doyle, L.A., Nelson, D., Heinrich, M.C., Corless, C.L. and Hornick, J.L. (2012) Loss of Succinate Dehydrogenase Subunit B (SDHB) Expression Is Limited to a Distinctive Subset of Gastric Wild‐Type Gastrointestinal Stromal Tumours: A Comprehensive Genotype-Phenotype Correlation Study. Histopathology, 61, 801-809. [Google Scholar] [CrossRef] [PubMed]
[54] Bauer, S., George, S., von Mehren, M. and Heinrich, M.C. (2021) Early and Next-Generation KIT/PDGFRA Kinase Inhibitors and the Future of Treatment for Advanced Gastrointestinal Stromal Tumor. Frontiers in Oncology, 11, Article 672500. [Google Scholar] [CrossRef] [PubMed]
[55] Cicala, C.M., Olivares-Rivas, I., Aguirre-Carrillo, J.A. and Serrano, C. (2024) KIT/PDGFRA Inhibitors for the Treatment of Gastrointestinal Stromal Tumors: Getting to the Gist of the Problem. Expert Opinion on Investigational Drugs, 33, 159-170. [Google Scholar] [CrossRef] [PubMed]
[56] Santoni, M., Iacovelli, R., Colonna, V., Klinz, S., Mauri, G. and Nuti, M. (2021) Antitumor Effects of the Multi-Target Tyrosine Kinase Inhibitor Cabozantinib: A Comprehensive Review of the Preclinical Evidence. Expert Review of Anticancer Therapy, 21, 1029-1054. [Google Scholar] [CrossRef] [PubMed]
[57] Dhillon, S. (2022) Olverembatinib: First Approval. Drugs, 82, 469-475. [Google Scholar] [CrossRef] [PubMed]
[58] Nannini, M., Rizzo, A., Indio, V., Schipani, A., Astolfi, A. and Pantaleo, M.A. (2021) Targeted Therapy in SDH-Deficient Gist. Therapeutic Advances in Medical Oncology, 13, 1-9. [Google Scholar] [CrossRef] [PubMed]
[59] Flavahan, W.A., Drier, Y., Johnstone, S.E., Hemming, M.L., Tarjan, D.R., Hegazi, E., et al. (2019) Altered Chromosomal Topology Drives Oncogenic Programs in SDH-Deficient Gists. Nature, 575, 229-233. [Google Scholar] [CrossRef] [PubMed]
[60] Shi, E., Chmielecki, J., Tang, C., Wang, K., Heinrich, M.C., Kang, G., et al. (2016) FGFR1 and NTRK3 Actionable Alterations in “Wild-Type” Gastrointestinal Stromal Tumors. Journal of Translational Medicine, 14, Article No. 339. [Google Scholar] [CrossRef] [PubMed]
[61] Vallilas, C., Sarantis, P., Kyriazoglou, A., Koustas, E., Theocharis, S., Papavassiliou, A.G., et al. (2021) Gastrointestinal Stromal Tumors (GISTs): Novel Therapeutic Strategies with Immunotherapy and Small Molecules. International Journal of Molecular Sciences, 22, Article 493. [Google Scholar] [CrossRef] [PubMed]