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Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review)

  • Authors:
    • Cristina Pizzimenti
    • Vincenzo Fiorentino
    • Antonino Germanò
    • Maurizio Martini
    • Antonio Ieni
    • Giovanni Tuccari
  • View Affiliations / Copyright

    Affiliations: Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, Sections of Pathology and Neurosurgery, University of Messina, I-98125 Messina, Italy, Department of Human Pathology in Adult and Developmental Age ‘Gaetano Barresi’, Section of Pathology, University of Messina, I-98125 Messina, Italy
    Copyright: © Pizzimenti et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 146
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    Published online on: February 8, 2024
       https://doi.org/10.3892/ol.2024.14279
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Abstract

Among low‑grade gliomas, representing 10‑20% of all primary brain tumours, the paradigmatic entity is constituted by pilocytic astrocytoma (PA), considered a grade 1 tumour by the World Health Organization. Generally, this tumour requires surgical treatment with an infrequent progression towards malignant gliomas. The present review focuses on clinicopathological characteristics, and reports imaging, neurosurgical and molecular features using a multidisciplinary approach. Macroscopically, PA is a slow‑growing soft grey tissue, characteristically presenting in association with a cyst and forming a small mural nodule, typically located in the cerebellum, but sometimes occurring in the spinal cord, basal ganglia or cerebral hemisphere. Microscopically, it may appear as densely fibrillated areas composed of elongated pilocytic cells with bipolar ‘hairlike’ processes or densely fibrillated areas composed of elongated pilocytic cells with Rosenthal fibres alternating with loosely fibrillated areas with a varied degree of myxoid component. A wide range of molecular alterations have been encountered in PA, mostly affecting the MAPK signalling pathway. In detail, the most frequent alteration is a rearrangement of the BRAF gene, although other alterations include neurofibromatosis type‑1 mutations, BRAFV600E mutations, KRAS mutations, fibroblast growth factor receptor‑1 mutations of fusions, neurotrophic receptor tyrosine kinase family receptor tyrosine kinase fusions and RAF1 gene fusions. The gold standard of PA treatment is surgical excision with complete margin resection, achieving minimal neurological damage. Conventional radiotherapy is not required; the more appropriate treatment appears to be serial follow‑up. Chemotherapy should only be applied in younger children to avoid the risk of long‑term growth and developmental issues associated with radiation. Finally, if PA recurs, a new surgical approach should be performed. At present, novel therapy involving agents targeting MAPK signalling pathway dysregulation is in development, defining BRAF and MEK inhibitors as target therapeutical agents.
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1 

Ius T, Cesselli D, Isola M, Pauletto G, Tomasino B, D'Auria S, Bagatto D, Pegolo E, Beltrami AP, Loreto CD and Skrap M: Incidental Low-Grade Gliomas: Single-Institution management based on clinical, surgical, and molecular data. Neurosurgery. 86:391–399. 2020. View Article : Google Scholar : PubMed/NCBI

2 

Louis DN, Perry A, Wesseling P, Brat DJ, Cree IA, Figarella-Branger D, Hawkins C, Ng HK, Pfister SM, Reifenberger G, et al: The 2021 WHO classification of tumors of the central nervous system: A summary. Neuro Oncol. 23:1231–1251. 2021. View Article : Google Scholar : PubMed/NCBI

3 

Collins VP, Jones DTW and Giannini C: Pilocytic astrocytoma: Pathology, molecular mechanisms and markers. Acta Neuropathol. 129:775–788. 2015. View Article : Google Scholar : PubMed/NCBI

4 

Lodi M, Boccuto L, Carai A, Cacchione A, Miele E, Colafati GS, Diomedi Camassei F, De Palma L, De Benedictis A, Ferretti E, et al: Low-Grade gliomas in patients with noonan syndrome: Case-Based review of the literature. Diagnostics (Basel). 10:5822020. View Article : Google Scholar : PubMed/NCBI

5 

Gutmann DH, McLellan MD, Hussain I, Wallis JW, Fulton LL, Fulton RS, Magrini V, Demeter R, Wylie T, Kandoth C, et al: Somatic neurofibromatosis type 1 (NF1) inactivation characterizes NF1-associated pilocytic astrocytoma. Genome Res. 23:431–439. 2013. View Article : Google Scholar : PubMed/NCBI

6 

Valera ET, McConechy MK, Gayden T, Rivera B, Jones DTW, Wittmann A, Han H, Bareke E, Nikbakht H, Mikael L, et al: Methylome analysis and whole-exome sequencing reveal that brain tumors associated with encephalocraniocutaneous lipomatosis are midline pilocytic astrocytomas. Acta Neuropathol. 136:657–660. 2018. View Article : Google Scholar : PubMed/NCBI

7 

Salles D, Laviola G, Malinverni ACM and Stávale JN: Pilocytic Astrocytoma: A review of general, clinical, and molecular characteristics. J Child Neurol. 35:852–858. 2020. View Article : Google Scholar : PubMed/NCBI

8 

Bell D, Chitnavis BP, Al-Sarraj S, Connor S, Sharr MM and Gullan RW: Pilocytic astrocytoma of the adult-clinical features, radiological features and management. Br J Neurosurg. 18:613–616. 2004. View Article : Google Scholar : PubMed/NCBI

9 

Ryu HH, Jung TY, Lee GJ, Lee KH, Jung SH, Jung S and Baek HJ: Differences in the clinical courses of pediatric and adult pilocytic astrocytomas with progression: A single-institution study. Child's Nerv Syst. 31:2063–2069. 2015. View Article : Google Scholar : PubMed/NCBI

10 

Opancina V, Esposito S, Di Meco F, Bruno E, Moscatelli M, Vetrano IG, Chiapparini L, Opancina M, Farinotti M, Zdravkovic N, et al: Magnetic resonance imaging characteristics of pediatric pilocytic astrocytoma. Neurol Sci. 44:4033–4040. 2023. View Article : Google Scholar : PubMed/NCBI

11 

Ajithkumar T, Taylor R and Kortmann RD: Radiotherapy in the management of paediatric low-grade gliomas. Clin Oncol (R Coll Radiol). 31:151–161. 2019. View Article : Google Scholar : PubMed/NCBI

12 

Santino SF, Salles D, Stávale JN and Malinverni ACM: Pathophysiological evaluation of pilocytic astrocytoma in adults: Histopathological and immunohistochemical analysis. Pathol Res Pract. 248:1545932023. View Article : Google Scholar : PubMed/NCBI

13 

Griesinger AM, Birks DK, Donson AM, Amani V, Hoffman LM, Waziri A, Wang M, Handler MH and Foreman NK: Characterization of distinct immunophenotypes across pediatric brain tumor types. J Immunol. 191:4880–4888. 2013. View Article : Google Scholar : PubMed/NCBI

14 

Annovazzi L, Mellai M, Bovio E, Mazzetti S, Pollo B and Schiffer D: Microglia immunophenotyping in gliomas. Oncol Lett. 15:998–1006. 2018.PubMed/NCBI

15 

Komotar RJ, Mocco J, Carson BS, Sughrue ME, Zacharia BE, Sisti AC, Canoll PD, Khandji AG, Tihan T, Burger PC and Bruce JN: Pilomyxoid astrocytoma: A review. MedGenMed. 6:422004.PubMed/NCBI

16 

Lee IH, Kim JH, Suh YL, Eo H, Shin HJ, Yoo SY and Lee KS: Imaging characteristics of pilomyxoid astrocytomas in comparison with pilocytic astrocytomas. Eur J Radiol. 79:311–316. 2011. View Article : Google Scholar : PubMed/NCBI

17 

Alkonyi B, Nowak J, Gnekow AK, Pietsch T and Warmuth-Metz M: Differential imaging characteristics and dissemination potential of pilomyxoid astrocytomas versus pilocytic astrocytomas. Neuroradiology. 57:625–638. 2015. View Article : Google Scholar : PubMed/NCBI

18 

Chaulagain D, Smolanka V and Smolanka A: Pilocytic astrocytoma: A literature review. Int Neurol J. 18:39–45. 2022.

19 

She D, Liu J, Zeng Z, Xing Z and Cao D: Diagnostic accuracy of diffusion weighted imaging for differentiation of supratentorial pilocytic astrocytoma and pleomorphic xanthoastrocytoma. Neuroradiology. 60:725–733. 2018. View Article : Google Scholar : PubMed/NCBI

20 

Shaikh N, Brahmbhatt N, Kruser TJ, Kam KL, Appin CL, Wadhwani N, Chandler J, Kumthekar P and Lukas RV: Pleomorphic xanthoastrocytoma: A brief review. CNS Oncol. 8:CNS392019. View Article : Google Scholar : PubMed/NCBI

21 

Rahim S, Ud Din N, Abdul-Ghafar J, Chundriger Q, Khan P and Ahmad Z: Clinicopathological features of dysembryoplastic neuroepithelial tumor: A case series. J Med Case Rep. 17:3272023. View Article : Google Scholar : PubMed/NCBI

22 

Salles D, Santino SF, Ribeiro DA, Malinverni ACM and Stávale JN: The involvement of the MAPK pathway in pilocytic astrocytomas. Pathol Res Pract. 232:1538212022. View Article : Google Scholar : PubMed/NCBI

23 

Cler SJ, Skidmore A, Yahanda AT, Mackey K, Rubin JB, Cluster A, Perkins S, Gauvain K, King AA, Limbrick DD, et al: Genetic and histopathological associations with outcome in pediatric pilocytic astrocytoma. J Neurosurg Pediatr. 29:504–512. 2022. View Article : Google Scholar : PubMed/NCBI

24 

Jones TA, Jeyapalan JN, Forshew T, Tatevossian RG, Lawson AR, Patel SN, Doctor GT, Mumin MA, Picker SR, Phipps KP, et al: Molecular analysis of pediatric brain tumors identifies microRNAs in pilocytic astrocytomas that target the MAPK and NF-κB pathways. Acta Neuropathol Commun. 3:862015. View Article : Google Scholar : PubMed/NCBI

25 

Rodriguez FJ, Schniederjan MJ, Nicolaides T, Tihan T, Burger PC and Perry A: High rate of concurrent BRAF-KIAA1549 gene fusion and 1p deletion in disseminated oligodendroglioma-like leptomeningeal neoplasms (DOLN). Acta Neuropathol. 129:609–610. 2015. View Article : Google Scholar : PubMed/NCBI

26 

Kumar A, Pathak P, Purkait S, Faruq M, Jha P, Mallick S, Suri V, Sharma MC, Suri A and Sarkar C: Oncogenic KIAA1549-BRAF fusion with activation of the MAPK/ERK pathway in pediatric oligodendrogliomas. Cancer Genet. 208:91–95. 2015. View Article : Google Scholar : PubMed/NCBI

27 

Roth JJ, Santi M, Pollock AN, Harding BN, Rorke-Adams LB, Tooke LS and Biegel JA: Chromosome Band 7q34 Deletions Resulting in KIAA 1549-BRAF and FAM 131 B-BRAF fusions in pediatric low-grade gliomas. Brain Pathol. 25:182–192. 2015. View Article : Google Scholar : PubMed/NCBI

28 

Ryall S, Arnoldo A, Krishnatry R, Mistry M, Khor K, Sheth J, Ling C, Leung S, Zapotocky M, Guerreiro Stucklin A, et al: Multiplex detection of pediatric low-grade glioma signature fusion transcripts and duplications using the NanoString nCounter system. J Neuropathol Exp Neurol. 76:562–570. 2017. View Article : Google Scholar : PubMed/NCBI

29 

Gregory TA, Chumbley LB, Henson JW and Theeler BJ: Adult pilocytic astrocytoma in the molecular era: A comprehensive review. CNS Oncol. 10:CNS682021. View Article : Google Scholar : PubMed/NCBI

30 

Lin R, Kenyon A, Wang ZX, Cai J, Iacovitti L and Kenyon LC: Pilocytic astrocytoma harboring a novel GNAI3-BRAF fusion. Neuropathology. 43:391–395. 2023. View Article : Google Scholar : PubMed/NCBI

31 

Laviv Y, Toledano H, Michowiz S, Dratviman-Storobinsky O, Turm Y, Fichman-Horn S, Kagnovski E and Goldenberg-Cohen N: BRAF, GNAQ, and GNA11 mutations and copy number in pediatric low-grade glioma. FEBS Open Bio. 2:129–134. 2012. View Article : Google Scholar : PubMed/NCBI

32 

Zwaig M, Baguette A, Hu B, Johnston M, Lakkis H, Nakada EM, Faury D, Juretic N, Ellezam B, Weil AG, et al: Detection and genomic analysis of BRAF fusions in Juvenile Pilocytic Astrocytoma through the combination and integration of multi-omic data. BMC Cancer. 22:12972022. View Article : Google Scholar : PubMed/NCBI

33 

Tomić TT, Olausson J, Wilzén A, Sabel M, Truvé K, Sjögren H, Dósa S, Tisell M, Lannering B, Enlund F, et al: A new GTF2I-BRAF fusion mediating MAPK pathway activation in pilocytic astrocytoma. PLoS One. 12:e01756382017. View Article : Google Scholar : PubMed/NCBI

34 

Rodriguez EF, Scheithauer BW, Giannini C, Rynearson A, Cen L, Hoesley B, Gilmer-Flynn H, Sarkaria JN, Jenkins S, Long J and Rodriguez FJ: PI3K/AKT pathway alterations are associated with clinically aggressive and histologically anaplastic subsets of pilocytic astrocytoma. Acta Neuropathol. 121:407–420. 2011. View Article : Google Scholar : PubMed/NCBI

35 

Engelhardt S, Behling F, Beschorner R, Eckert F, Kohlhof P, Tatagiba M, Tabatabai G, Schuhmann MU, Ebinger M and Schittenhelm J: Frequent FGFR1 hotspot alterations in driver-unknown low-grade glioma and mixed neuronal-glial tumors. J Cancer Res Clin Oncol. 148:857–866. 2022. View Article : Google Scholar : PubMed/NCBI

36 

Jones DT, Hutter B, Jäger N, Korshunov A, Kool M, Warnatz HJ, Zichner T, Lambert SR, Ryzhova M, Quang DA, et al: Recurrent somatic alterations of FGFR1 and NTRK2 in pilocytic astrocytoma. Nat Genet. 45:927–932. 2013. View Article : Google Scholar : PubMed/NCBI

37 

Asuzu DT, Desai B, Maggio D, Mandell J, Ray-Chaudhury A, Abdullaev Z, Aldape K, Heiss J and Buchholz AL: FGFR1-TACC1 fusion associated with malignant transformation in a primary spinal cord glioma: A case report. J Spine Surg. 7:434–438. 2021. View Article : Google Scholar : PubMed/NCBI

38 

Rivera B, Gayden T, Carrot-Zhang J, Nadaf J, Boshari T, Faury D, Zeinieh M, Blanc R, Burk DL, Fahiminiya S, et al: Germline and somatic FGFR1 abnormalities in dysembryoplastic neuroepithelial tumors. Acta Neuropathol. 131:847–863. 2016. View Article : Google Scholar : PubMed/NCBI

39 

Trisolini E, Wardighi DE, Giry M, Bernardi P, Boldorini RL, Mokhtari K and Sanson M: Actionable FGFR1 and BRAF mutations in adult circumscribed gliomas. J Neurooncol. 145:241–245. 2019. View Article : Google Scholar : PubMed/NCBI

40 

Jones DT, Kocialkowski S, Liu L, Pearson DM, Ichimura K and Collins VP: Oncogenic RAF1 rearrangement and a novel BRAF mutation as alternatives to KIAA1549:BRAF fusion in activating the MAPK pathway in pilocytic astrocytoma. Oncogene. 28:2119–2123. 2009. View Article : Google Scholar : PubMed/NCBI

41 

Yde CW, Sehested A, Mateu-Regué À, Østrup O, Scheie D, Nysom K, Nielsen FC and Rossing M: A new NFIA:RAF1 fusion activating the MAPK pathway in pilocytic astrocytoma. Cancer Genet. 209:440–444. 2016. View Article : Google Scholar : PubMed/NCBI

42 

Janzarik WG, Kratz CP, Loges NT, Olbrich H, Klein C, Schäfer T, Scheurlen W, Roggendorf W, Weiller C, Niemeyer C, et al: Further Evidence for a Somatic KRAS Mutation in a Pilocytic Astrocytoma. Neuropediatrics. 38:61–63. 2007. View Article : Google Scholar : PubMed/NCBI

43 

Guerreiro Stucklin AS, Ryall S, Fukuoka K, Zapotocky M, Lassaletta A, Li C, Bridge T, Kim B, Arnoldo A, Kowalski PE, et al: Alterations in ALK/ROS1/NTRK/MET drive a group of infantile hemispheric gliomas. Nat Commun. 10:43432019. View Article : Google Scholar : PubMed/NCBI

44 

Orillac C, Thomas C, Dastagirzada Y, Hidalgo ET, Golfinos JG, Zagzag D, Wisoff JH, Karajannis MA and Snuderl M: Pilocytic astrocytoma and glioneuronal tumor with histone H3 K27M mutation. Acta Neuropathol Commun. 4:842016. View Article : Google Scholar : PubMed/NCBI

45 

Morita S, Nitta M, Muragaki Y, Komori T, Masui K, Maruyama T, Ichimura K, Nakano Y, Sawada T, Koriyama S, et al: Brainstem pilocytic astrocytoma with H3 K27M mutation: Case report. J Neurosurg. 129:593–597. 2018. View Article : Google Scholar : PubMed/NCBI

46 

AlShail E, Alahmari AN, Dababo AAM, Alsagob M, Al-Hindi H, Khalil H, Al Masseri Z, AlSalamah R, Almohseny E, Alduhaish A, et al: A molecular study of pediatric pilomyxoid and pilocytic astrocytomas: Genome-wide copy number screening, retrospective analysis of clinicopathological features and long-term clinical outcome. Front Oncol. 13:10342922023. View Article : Google Scholar : PubMed/NCBI

47 

Reinhardt A, Stichel D, Schrimpf D, Sahm F, Korshunov A, Reuss DE, Koelsche C, Huang K, Wefers AK, Hovestadt V, et al: Anaplastic astrocytoma with piloid features, a novel molecular class of IDH wildtype glioma with recurrent MAPK pathway, CDKN2A/B and ATRX alterations. Acta Neuropathol. 136:273–291. 2018. View Article : Google Scholar : PubMed/NCBI

48 

Konar SK, Shukla D, Nandeesh BN, Prabhuraj AR and Devi BI: Surgical management and outcome of a bilateral thalamic pilocytic astrocytoma: Case report and review of the literature. Pediatr Neurosurg. 54:139–142. 2019. View Article : Google Scholar : PubMed/NCBI

49 

Onorini N, Spennato P, Orlando V, Savoia F, Calì C, Russo C, De Martino L, de Santi MS, Mirone G, Ruggiero C, et al: The clinical and prognostic impact of the choice of surgical approach to fourth ventricular tumors in a single-center, single-surgeon cohort of 92 consecutive pediatric patients. Front Oncol. 12:8217382022. View Article : Google Scholar : PubMed/NCBI

50 

Sager O, Dincoglan F, Demiral S, Uysal B, Gamsiz H, Gumustepe E, Ozcan F, Colak O, Gursoy AT, Dursun CU, et al: Concise review of radiosurgery for contemporary management of pilocytic astrocytomas in children and adults. World J Exp Med. 12:36–43. 2022. View Article : Google Scholar : PubMed/NCBI

51 

Becker AP, Scapulatempo-Neto C, Carloni AC, Paulino A, Sheren J, Aisner DL, Musselwhite E, Clara C, Machado HR, Oliveira RS, et al: KIAA1549: BRAF Gene Fusion and FGFR1 Hotspot Mutations Are Prognostic Factors in Pilocytic Astrocytomas. J Neuropathol Exp Neurol. 74:743–754. 2015. View Article : Google Scholar : PubMed/NCBI

52 

Hawkins C, Walker E, Mohamed N, Zhang C, Jacob K, Shirinian M, Alon N, Kahn D, Fried I, Scheinemann K, et al: BRAF-KIAA1549 fusion predicts better clinical outcome in pediatric low-grade astrocytoma. Clin Cancer Res. 17:4790–4798. 2011. View Article : Google Scholar : PubMed/NCBI

53 

Liu H, Chen Y, Qin X, Jin Z, Jiang Y and Wang Y: Epidemiology and survival of patients with optic pathway gliomas: A population-based analysis. Front Oncol. 12:7898562022. View Article : Google Scholar : PubMed/NCBI

54 

Manoharan N, Liu KX, Mueller S, Haas-Kogan DA and Bandopadhayay P: Pediatric low-grade glioma: Targeted therapeutics and clinical trials in the molecular era. Neoplasia. 36:1008572023. View Article : Google Scholar : PubMed/NCBI

55 

Lassaletta A, Scheinemann K, Zelcer SM, Hukin J, Wilson BA, Jabado N, Carret AS, Lafay-Cousin L, Larouche V, Hawkins CE, et al: Phase II weekly vinblastine for chemotherapy-naïve children with progressive low-grade glioma: A canadian pediatric brain tumor consortium study. J Clin Oncol. 34:3537–3543. 2016. View Article : Google Scholar : PubMed/NCBI

56 

Fangusaro J, Onar-Thomas A, Poussaint TY, Wu S, Ligon AH, Lindeman N, Campagne O, Banerjee A, Gururangan S, Kilburn LB, et al: A phase II trial of selumetinib in children with recurrent optic pathway and hypothalamic low-grade glioma without NF1: A Pediatric Brain Tumor Consortium study. Neuro Oncol. 23:1777–1788. 2021. View Article : Google Scholar : PubMed/NCBI

57 

Fangusaro J, Onar-Thomas A, Young Poussaint T, Wu S, Ligon AH, Lindeman N, Banerjee A, Packer RJ, Kilburn LB, Goldman S, et al: Selumetinib in paediatric patients with BRAF-aberrant or neurofibromatosis type 1-associated recurrent, refractory, or progressive low-grade glioma: A multicentre, phase 2 trial. Lancet Oncol. 20:1011–1022. 2019. View Article : Google Scholar : PubMed/NCBI

58 

Wen PY, Stein A, van den Bent M, De Greve J, Wick A, de Vos FYFL, von Bubnoff N, van Linde ME, Lai A, Prager GW, et al: Dabrafenib plus trametinib in patients with BRAFV600E-mutant low-grade and high-grade glioma (ROAR): A multicentre, open-label, single-arm, phase 2, basket trial. Lancet Oncol. 23:53–64. 2022. View Article : Google Scholar : PubMed/NCBI

59 

Bouffet E, Hansford J, Garré ML, Hara J, Plant-Fox A, Aerts I, Locatelli F, Van der Lugt J, Papusha L, Sahm F, et al: Primary analysis of a phase II trial of dabrafenib plus trametinib (dab + tram) in BRAF V600-mutant pediatric low-grade glioma (pLGG). J Clin Oncol. 40:LBA20022022. View Article : Google Scholar

60 

Wright KD, Yao X, London WB, Kao PC, Gore L, Hunger S, Geyer R, Cohen KJ, Allen JC, Katzenstein HM, et al: A POETIC Phase II study of continuous oral everolimus in recurrent, radiographically progressive pediatric low-grade glioma. Pediatr Blood Cancer. 68:e287872021. View Article : Google Scholar : PubMed/NCBI

61 

Theeler BJ, Ellezam B, Yust-Katz S, Slopis JM, Loghin ME and de Groot JF: Prolonged survival in adult neurofibromatosis type I patients with recurrent high-grade gliomas treated with bevacizumab. J Neurol. 261:1559–1564. 2014. View Article : Google Scholar : PubMed/NCBI

62 

Wasilewski A and Mohile N: Durable response to bevacizumab in adults with recurrent pilocytic astrocytoma. CNS Oncol. 7:CNS262018. View Article : Google Scholar : PubMed/NCBI

63 

Kaur A, Doberstein T, Amberker RR, Garje R, Field EH and Singh N: Immune-related adverse events in cancer patients treated with immune checkpoint inhibitors. Medicine (Baltimore). 98:e173482019. View Article : Google Scholar : PubMed/NCBI

64 

Guo X, Pan Y, Xiong M, Sanapala S, Anastasaki C, Cobb O, Dahiya S and Gutmann DH: Midkine activation of CD8+ T cells establishes a neuron-immune-cancer axis responsible for low-grade glioma growth. Nat Commun. 11:21772020. View Article : Google Scholar : PubMed/NCBI

65 

Chen J, Sinha N, Cobb O, Liu C, Ersen A, Phillips JJ, Tihan T, Gutmann DH and Dahiya S: Immune cell analysis of pilocytic astrocytomas reveals sexually dimorphic brain region-specific differences in T-cell content. Neurooncol Adv. 3:vdab0682021.PubMed/NCBI

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Copy and paste a formatted citation
Spandidos Publications style
Pizzimenti C, Fiorentino V, Germanò A, Martini M, Ieni A and Tuccari G: Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review). Oncol Lett 27: 146, 2024.
APA
Pizzimenti, C., Fiorentino, V., Germanò, A., Martini, M., Ieni, A., & Tuccari, G. (2024). Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review). Oncology Letters, 27, 146. https://doi.org/10.3892/ol.2024.14279
MLA
Pizzimenti, C., Fiorentino, V., Germanò, A., Martini, M., Ieni, A., Tuccari, G."Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review)". Oncology Letters 27.4 (2024): 146.
Chicago
Pizzimenti, C., Fiorentino, V., Germanò, A., Martini, M., Ieni, A., Tuccari, G."Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review)". Oncology Letters 27, no. 4 (2024): 146. https://doi.org/10.3892/ol.2024.14279
Copy and paste a formatted citation
x
Spandidos Publications style
Pizzimenti C, Fiorentino V, Germanò A, Martini M, Ieni A and Tuccari G: Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review). Oncol Lett 27: 146, 2024.
APA
Pizzimenti, C., Fiorentino, V., Germanò, A., Martini, M., Ieni, A., & Tuccari, G. (2024). Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review). Oncology Letters, 27, 146. https://doi.org/10.3892/ol.2024.14279
MLA
Pizzimenti, C., Fiorentino, V., Germanò, A., Martini, M., Ieni, A., Tuccari, G."Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review)". Oncology Letters 27.4 (2024): 146.
Chicago
Pizzimenti, C., Fiorentino, V., Germanò, A., Martini, M., Ieni, A., Tuccari, G."Pilocytic astrocytoma: The paradigmatic entity in low‑grade gliomas (Review)". Oncology Letters 27, no. 4 (2024): 146. https://doi.org/10.3892/ol.2024.14279
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