PreprintCited by 1,064Long-Term Effects of COVID-19SARS-CoV-2 and COVID-19 ResearchCOVID-19 Clinical Research Studies

Neuroinvasion of SARS-CoV-2 in human and mouse brain

Open access
Song, Eric, Zhang, Ce, Israelow, Benjamin, Lu-Culligan, Alice, Prado, Alba Vieites, Skriabine, Sophie, Lu, Peiwen, Weizman, Orr-El +31 more·2020·The Journal of Experimental Medicine

Preprint — published as 10.1084/jem.20202135 · Paper page

Abstract

Summary: Although COVID-19 is considered to be primarily a respiratory disease, SARS-CoV-2 affects multiple organ systems including the central nervous system (CNS). Yet, there is no consensus whether the virus can infect the brain, or what the consequences of CNS infection are. Here, we used three independent approaches to probe the capacity of SARS-CoV-2 to infect the brain. First, using human brain organoids, we observed clear evidence of infection with accompanying metabolic changes in the infected and neighboring neurons. However, no evidence for the type I interferon responses was detected. We demonstrate that neuronal infection can be prevented either by blocking ACE2 with antibodies or by administering cerebrospinal fluid from a COVID-19 patient. Second, using mice overexpressing human ACE2, we demonstrate in vivo that SARS-CoV-2 neuroinvasion, but not respiratory infection, is associated with mortality. Finally, in brain autopsy from patients who died of COVID-19, we detect SARS-CoV-2 in the cortical neurons, and note pathologic features associated with infection with minimal immune cell infiltrates. These results provide evidence for the neuroinvasive capacity of SARS-CoV2, and an unexpected consequence of direct infection of neurons by SARS-CoV-2.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1101/2020.06.25.169946

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Autopsy has revealed that SARS-CoV-2 is detected in subcortical white matter but without infiltration of lymphocytes or leukocytes, although not all post-mortem studies have detected SARS-CoV-2 in the brain.

    “For example, autopsy has revealed that SARS-CoV-2 is detected in subcortical white matter but without infiltration of lymphocytes or leukocytes [78], although not all post-mortem studies have detected SARS-CoV-2 in the brain.”
  • There has been no evidence for a role of innate immune cells in SARS-CoV-2 gaining access to the retina or the brain, although the virus has been found in both organs.

    “Furthermore, there has been no evidence for the role of innate immune cells in SARS-CoV-2 gaining access to the retina (de Figueiredo et al., 2020) or the brain (Song et al., 2021), albeit the virus has been found in both organs.”

    From COVID-19 and the human innate immune system (2021) · cites this paper as Song et al., 2021

  • Once the virus enters the CNS, it affects neurons, microglia, oligodendrocytes, and especially astrocytes, undermining neuron viability.

    “Once the virus enters the CNS, it affects neurons, microglia, oligodendrocytes, and especially astrocytes, undermining neurons viability [17, 179, 180].”
  • Positive staining for SARS-CoV-2 spike protein was found in the brain of three COVID-19 patients, with different expression patterns and staining intensities.

    “The same study found positive staining for SARS-CoV-2 spike protein in the brain of three COVID-19 patients, with different expression patterns and staining intensities [26].”
  • Neuroinvasion potential of SARS-CoV-2 was demonstrated in mice expressing human ACE2 and correlated with increased mortality independent from respiratory infection.

    “Neuroinvasion potential of SARS-CoV-2 was demonstrated in mice expressing human ACE2 and correlated with increased mortality independent from respiratory infection [26].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Song, E., Zhang, C., Israelow, B., Lu-Culligan, A., Prado, A. V., Skriabine, S., Lu, P., Weizman, O.-E., Liu, F., Dai, Y., Szigeti-Buck, K., Yasumoto, Y., Wang, G., Castaldi, C., Heltke, J., Ng, E., Wheeler, J., Alfajaro, M. M., Levavasseur, E., Fontes, B., Ravindra, N. G., Van Dijk, D., Mane, S., Gunel, M., Ring, A., Jaffar Kazmi, S. A., Zhang, K., Wilen, C. B., Horvath, T. L., Plu, I., Haik, S., Thomas, J.-L., Louvi, A., Farhadian, S. F., Huttner, A., Seilhean, D., Renier, N., Bilguvar, K., & Iwasaki, A.
Affiliations
  • Yale University (US)
  • Centre National de la Recherche Scientifique (FR)
  • Geisinger Medical Center (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Iwasaki, Akiko
Venue
The Journal of Experimental Medicine
Publisher
openRxiv
Published
2020-06-26
Volume
218
Issue
3
Pages
e20202135
ISSN
0022-1007 (ISSN-L)
OpenAlex
W3118627743
Cited by
1,064
References
48
Citations by year
2026: 39 · 2025: 80 · 2024: 143 · 2023: 204 · 2022: 278 · 2021: 287 · 2020: 31 · 2015: 1 · 2013: 1
FWCI
87.30
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by-nc-sa)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • PubMed Central (submittedVersion, cc-by-nc-nd)
  • HAL (submittedVersion, cc-by-nc)
Funders
  • Howard Hughes Medical Institute
  • Yale University (T32GM007205)
  • G. Harold and Leila Y. Mathers Foundation
  • Ludwig Family Foundation
  • Agence Nationale de la Recherche (ANR-17-CE14-0005)
  • National Institutes of Health (UL1TR001863)
  • National Institute of Mental Health (K23MH118999)
  • National Cancer Institute (F30CA239444)
  • National Institute of General Medical Sciences (T32GM007205)
  • National Institute of Allergy and Infectious Diseases (R01AI157488, T32AI055403, T32AI007517)
  • National Institute of Neurological Disorders and Stroke (R01NS111242)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Neurology › Long-Term Effects of COVID-19
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
Keywords
SARS-CoV-2, COVID-19 pandemic, neuroinvasion, central nervous system infection, brain organoids, neuronal infection, ACE2, type I interferon response, cerebrospinal fluid, transgenic mouse model, autopsy findings, cortical neurons, immune cell infiltration

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review