Meningiomas and Somatostatin Analogs: A Systematic Scoping Review on Current Insights and Future Perspectives
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. The Included Papers
3.2. Characteristics of Sources of Evidence
3.3. Summary of Sources
3.4. Critical Appraisal within Sources of Evidence
3.5. The Molecular Mechanisms of Somatostatin Analogs
3.6. Efficiacy of Somatostatin Analogs
3.7. Somatostatin Analogs and Previous Treatment
3.8. Side Effects
3.9. Theranostics Utilizing SSTRs
3.10. Strenghts and Limitations
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Author, Year, Location [Ref] | Number of Patients | CNS WHO Grade and/or Subtype | Treatment | Clinical Response, PFS-6 | Radiological Response | SSTR Status | Adverse Effects |
---|---|---|---|---|---|---|---|
Case Reports (n = 5) | |||||||
Buigues, 2016, Spain [28] | 1 | Meningothelial meningioma | Lanreotide sc | None, PFS > 2 years | Improvement | OctreoScan positive | Not reported |
García-Luna, 1993, Spain [29] | 3 | Meningothelial and papillomatous meningioma | Octreotide sc | No lasting response | None | SSTRs confirmed in one case, otherwise unknown | None/mild adverse effects |
Jaffrain-Rea, 1998, Italy [30] | 1 | Transitional meningioma | Octreotide sc | Clinical improvement | None | Not reported | Not reported |
Rammo, 2016, USA [31] | 1 | Grade 3 | Octreotide | Remission for 3.5 years | Not reported | Octreotide receptor 2a present | Not reported |
Schreglmann, 2013, Switzerland [32] | 1 | WHO grade 1, meningotheliomatous, Pulmonary metastases | Octreotide sc | Not reported | New tumor lesions | Octreotide scintigraphy positive | Autoimmune-mediated focal demyelination. Polyallergic patient |
Prospective Studies (n = 5) | |||||||
Chamberlain, 2007, USA [36] | 16 | WHO grade 1, 2, and 3 | Sandostatin LAR im | PFS-6 *: 44% | Partial radiological response: 31% of patients | Octreotide scintigraphy positive | Minimal toxicity |
Graillon, 2020, France [40] | 20 | WHO grade 1, 2, and 3 | Everolimus po + octreotide LAR im | PFS-6: 55% | Anti-tumor activity (3D tumor growth rate) | SSTR2a detected in most patients using IHC | Stomatitis in 55% of patients, discontinuations of two patients |
Johnson, 2011, USA [37] | 11 | WHO grade 1, 2, and 3 | Octreotide sc | None | None | SSTR status partly known | Mild adverse effects: diarrhea, nausea, anorexia, transaminitis |
Norden, 2015, USA [38] | 34 | WHO grade 1, 2, and 3 | Pasireotide LAR im | WHO grade 1: 50% WHO grade 2 + 3: 17% | None | High octreotide uptake | Treatment well tolerated |
Simó, 2014, Spain [39] | 9 | WHO grade 2 and 3 | Octreotide im | PFS-6: 44.4% | None | Positive octreotide SPECT scanning | Minimal toxicity reported |
Retrospective Studies (n = 3) | |||||||
Cardona, 2019, Colombia [33] | 15 received octreotide | WHO grade 2 or 3 | Octreotide ± everolimus | No difference in survival when comparing everolimus ± octreotide, and sunitinib | Not reported | Confirmed overexpression of SSTR2 | Fatigue and oedema |
Furtner, 2016, Austria [34] | 9 received somatostatin analog | WHO grade 2 and 3 | Somatostatin analog | Not reported | No reduction in peritumoral edema or tumor size | SSTR status not reported | Not reported |
Le Van, 2021, France [35] | 8 | WHO grade 1, 2, and 3 | Everolimus + octreotide | PFS-6 *: 60%, combination of octreotide + everolimus | Not reported | SSTR status not reported | Not reported |
Author, Year, Location [Ref] | Aims | Results |
---|---|---|
Graillon, 2015, France [41] | Activity of octreotide, everolimus, BKM-120 and BEZ-235 (new Pi3K/Akt/mTOR inhibitors), and a combined treatment (octreotide plus everolimus) on signaling pathways, cell proliferation, and cell cycle proteins in meningioma primary cells. | n = 23 patients. SSTR2 mRNA expression in all tested cells. Octreotide decreased cell viability. Enhanced decrease with a combined treatment of octreotide and everolimus. |
Graillon, 2017a, France [42] | Comparison of pasireotide and octreotide, both alone and in combination with everolimus, on meningioma primary cell cultures. | Pasireotide induces a higher reduction in cell viability and stronger inhibitory effect on cell proliferation than octreotide, both alone and in combination with everolimus. |
Graillon, 2017b, France [43] | Evaluate the effect of octreotide on meningioma primary cell cultures. | n = 80 meningioma primary cell cultures. Octreotide significantly decreased cell proliferation in the majority of meningiomas but did not induce apoptosis. Improved octreotide effect on cell viability if elevated level of SSTR2. |
Koper, 1992, Netherlands [44] | Effects of somatostatin and octreotide on the growth of cultured human meningioma cells. | Significant stimulation of growth. |
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Tollefsen, S.E.; Solheim, O.; Mjønes, P.; Torp, S.H. Meningiomas and Somatostatin Analogs: A Systematic Scoping Review on Current Insights and Future Perspectives. Int. J. Mol. Sci. 2023, 24, 4793. https://doi.org/10.3390/ijms24054793
Tollefsen SE, Solheim O, Mjønes P, Torp SH. Meningiomas and Somatostatin Analogs: A Systematic Scoping Review on Current Insights and Future Perspectives. International Journal of Molecular Sciences. 2023; 24(5):4793. https://doi.org/10.3390/ijms24054793
Chicago/Turabian StyleTollefsen, Sofie Eline, Ole Solheim, Patricia Mjønes, and Sverre Helge Torp. 2023. "Meningiomas and Somatostatin Analogs: A Systematic Scoping Review on Current Insights and Future Perspectives" International Journal of Molecular Sciences 24, no. 5: 4793. https://doi.org/10.3390/ijms24054793
APA StyleTollefsen, S. E., Solheim, O., Mjønes, P., & Torp, S. H. (2023). Meningiomas and Somatostatin Analogs: A Systematic Scoping Review on Current Insights and Future Perspectives. International Journal of Molecular Sciences, 24(5), 4793. https://doi.org/10.3390/ijms24054793