Evidence map›Paper›PMID 34133011›Full record

ReviewCell biochemistry and biophysics2021

Genotype/Phenotype Interactions and First Steps Toward Targeted Therapy for Sphingosine Phosphate Lyase Insufficiency Syndrome.

Julie D Saba, Nancy Keller, Jen-Yeu Wang, Felicia Tang, Avi Slavin, Yizhuo Shen

Abstract readReview
PubMed Publisher
In one paragraph

Review in Cell biochemistry and biophysics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Sphingolipid signaling in kidney diseases.American journal of physiology. Renal physiology · 2025
    Review
  5. Article
  6. Regulation of cellular and systemic sphingolipid homeostasis.Nature reviews. Molecular cell biology · 2024
    Review
  7. Article
  8. Article
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Julie D SabaUCSF Department of Pediatrics, San Francisco, CA, USA. Julie.Saba@ucsf.edu.ORCID http://orcid.org/0000-0002-4894-919X
Nancy KellerUCSF Department of Pediatrics, San Francisco, CA, USA.
Jen-Yeu WangUCSF Department of Pediatrics, San Francisco, CA, USA.
Felicia TangUCSF Department of Pediatrics, San Francisco, CA, USA.
Avi SlavinUCSF Department of Pediatrics, San Francisco, CA, USA.
Yizhuo ShenUCSF Department of Pediatrics, San Francisco, CA, USA.
University of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sphingosine-1-phosphate lyase insufficiency syndrome (SPLIS) is a rare metabolic disorder caused by a deficiency in sphingosine-1-phosphate lyase (SPL), the final enzyme in the sphingolipid degradative pathway. Inactivating mutations of SGPL1-the gene encoding SPL-lead to a deficiency of its downstream products, and buildup of sphingolipid intermediates, including its bioactive substrate, sphingosine-1-phosphate (S1P), the latter causing lymphopenia, a hallmark of the disease. Other manifestations of SPLIS include nephrotic syndrome, neuronal defects, and adrenal insufficiency, but their pathogenesis remains unknown. In this report, we describe the correlation between SGPL1 genotypes, age at diagnosis, and patient outcome. Vitamin B6 serves as a cofactor for SPL. B6 supplementation may aid some SPLIS patients by overcoming poor binding kinetics and promoting proper folding and stability of mutant SPL proteins. However, this approach remains limited to patients with a susceptible allele. Gene therapy represents a potential targeted therapy for SPLIS patients harboring B6-unresponsive missense mutations, truncations, deletions, and splice-site mutations. When Sgpl1 knockout (SPL

Indexed as

Aldehyde-LyasesGenetic TherapyAnimalsChild, PreschoolDependovirusGenotypeHumansInfantMiceMice, KnockoutMutationPhenotypeSyndromeVitamin B 6Aldehyde-LyasesSGPL1 protein, humansphingosine 1-phosphate lyase (aldolase)Vitamin B 6Gene therapySphingolipidSphingosine-1-phosphateSphingosine phosphate lyaseSphingosine phosphate lyase insufficiency syndromeVitamin B6

Identifiers

PMID34133011
OpenAlexW3173055142

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.