Open Access

Microascus cirrosus SZ 2021: A potentially new genotype of Microascus cirrosus, which can cause fatal pulmonary infection in patients with acute leukemia following haplo‑HSCT

  • Authors:
    • Jianjun Cheng
    • Daxiong Zeng
    • Ting Zhang
    • Lu Zhang
    • Xiu Han
    • Peng Zhou
    • Lin Wang
    • Jun He
    • Qingzhen Han
  • View Affiliations

  • Published online on: July 7, 2023     https://doi.org/10.3892/etm.2023.12103
  • Article Number: 404
  • Copyright: © Cheng et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Uncommon Microascus cirrosus (M. cirrosus) species have been reported to cause an increasing number of subcutaneous and invasive fungal infections worldwide; since the first human infection was reported in 1992, seven cases have been reported in PubMed. The present study reports a novel genotype named M. cirrosus SZ 2021 isolated from a patient undergoing hematopoietic stem cell transplantation, who exhibited extensive drug resistance and suffered a fatal pulmonary infection. This isolated M. cirrosus was cultured and determined by morphological observation, multi‑locus sequence typing, matrix‑assisted laser desorption and ionization time‑of‑flight mass spectrometry, and whole genome sequencing by next‑generation sequencing. The whole nucleotide sequence (32.61 Mb) has been uploaded in the NCBI database (PRJNA835605). In addition, M. cirrosus SZ 2021 was not sensitive to the commonly used antifungal drugs, including fluconazole, amphotericin B, 5‑flucytosine and caspofungin. The current literature on human infections by M. cirrosus was reviewed to closely define the comprehensive clinical characteristics and etiological identification. In brief, the present study identified a new M. cirrosus and summarized the clinical characteristics of fungal pneumonia by M. cirrosus species. Complete laboratory identification methods from morphology to gene sequencing were also established for an improved etiological identification and further investigation into the real prevalence of invasive pneumonia by M. cirrosus.
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August-2023
Volume 26 Issue 2

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Cheng J, Zeng D, Zhang T, Zhang L, Han X, Zhou P, Wang L, He J and Han Q: <em>Microascus cirrosus</em> SZ 2021: A potentially new genotype of <em>Microascus cirrosus</em>, which can cause fatal pulmonary infection in patients with acute leukemia following haplo‑HSCT. Exp Ther Med 26: 404, 2023
APA
Cheng, J., Zeng, D., Zhang, T., Zhang, L., Han, X., Zhou, P. ... Han, Q. (2023). <em>Microascus cirrosus</em> SZ 2021: A potentially new genotype of <em>Microascus cirrosus</em>, which can cause fatal pulmonary infection in patients with acute leukemia following haplo‑HSCT. Experimental and Therapeutic Medicine, 26, 404. https://doi.org/10.3892/etm.2023.12103
MLA
Cheng, J., Zeng, D., Zhang, T., Zhang, L., Han, X., Zhou, P., Wang, L., He, J., Han, Q."<em>Microascus cirrosus</em> SZ 2021: A potentially new genotype of <em>Microascus cirrosus</em>, which can cause fatal pulmonary infection in patients with acute leukemia following haplo‑HSCT". Experimental and Therapeutic Medicine 26.2 (2023): 404.
Chicago
Cheng, J., Zeng, D., Zhang, T., Zhang, L., Han, X., Zhou, P., Wang, L., He, J., Han, Q."<em>Microascus cirrosus</em> SZ 2021: A potentially new genotype of <em>Microascus cirrosus</em>, which can cause fatal pulmonary infection in patients with acute leukemia following haplo‑HSCT". Experimental and Therapeutic Medicine 26, no. 2 (2023): 404. https://doi.org/10.3892/etm.2023.12103