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Differential proteo...
Differential proteomic profile of lumbar and ventricular cerebrospinal fluid
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Rostgaard, N. (author)
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Olsen, M. H. (author)
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Ottenheijm, M. (author)
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Drici, L. (author)
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Simonsen, A. H. (author)
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Plomgaard, P. (author)
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Gredal, H. (author)
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Poulsen, H. H. (author)
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- Zetterberg, Henrik, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
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- Blennow, Kaj, 1958 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
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Hasselbalch, S. G. (author)
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MacAulay, N. (author)
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Juhler, M. (author)
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(creator_code:org_t)
- 2023-01-21
- 2023
- English.
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In: Fluids and Barriers of the Cns. - : Springer Science and Business Media LLC. - 2045-8118. ; 20:1
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
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- BackgroundPathological cerebral conditions may manifest in altered composition of the cerebrospinal fluid (CSF). Although diagnostic CSF analysis seeks to establish pathological disturbances in the brain proper, CSF is generally sampled from the lumbar compartment for reasons of technical ease and ethical considerations. We here aimed to compare the molecular composition of CSF obtained from the ventricular versus the lumbar CSF compartments to establish a relevance for employing lumbar CSF as a proxy for the CSF bathing the brain tissue.MethodsCSF was collected from 46 patients with idiopathic normal pressure hydrocephalus (iNPH) patients during their diagnostic workup (lumbar samples) and in connection with their subsequent CSF diversion shunt surgery (ventricular samples). The mass-spectrometry-based proteomic profile was determined in these samples and in addition, selected biomarkers were quantified with ELISA (S100B, neurofilament light (NfL), amyloid-beta (A beta(40), A beta(42)), and total tau (T-tau) and phosphorylated tau (P-tau) forms). The latter analysis was extended to include paired porcine samples obtained from the lumbar compartment and the cerebromedullary cistern closely related to the ventricles.ResultsIn total 1231 proteins were detected in the human CSF. Of these, 216 distributed equally in the two CSF compartments, whereas 22 were preferentially (or solely) present in the ventricular CSF and four in the lumbar CSF. The selected biomarkers of neurodegeneration and Alzheimer's disease displayed differential distribution, some with higher (S100B, T-tau, and P-tau) and some with lower (NfL, A beta(40), A beta(42)) levels in the ventricular compartment. In the porcine samples, all biomarkers were most abundant in the lumbar CSF.ConclusionsThe overall proteomic profile differs between the ventricular and the lumbar CSF compartments, and so does the distribution of clinically employed biomarkers. However, for a range of CSF proteins and biomarkers, one can reliably employ lumbar CSF as a proxy for ventricular CSF if or a lumbar/cranial index for the particular molecule has been established. It is therefore important to verify the compartmental preference of the proteins or biomarkers of interest prior to extrapolating from lumbar CSF to that of the ventricular fluid bordering the brain.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Keyword
- Cerebrospinal fluid
- Biomarkers
- Mass spectrometry
- Proteomics
- Idiopathic normal pressure hydrocephalus
- normal-pressure hydrocephalus
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Rostgaard, N.
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Olsen, M. H.
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Ottenheijm, M.
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Drici, L.
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Simonsen, A. H.
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Plomgaard, P.
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show more...
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Gredal, H.
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Poulsen, H. H.
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Zetterberg, Henr ...
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Blennow, Kaj, 19 ...
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Hasselbalch, S. ...
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MacAulay, N.
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Juhler, M.
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Neurosciences
- Articles in the publication
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Fluids and Barri ...
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University of Gothenburg