Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 185

The DOI matches its Crossref record.

Metal Cation Requirements for Phytohemagglutinin-Induced Transformation of Human Peripheral Blood Lymphocytes

Alford, Robert H·1970·The Journal of Immunology

Abstract

Citrate and disodium EDTA were effective inhibitors of PHA-induced lymphocyte transformation. A high concentration of citrate (24 mM) was required. Citrate inhibition was totally reversible by calcium and half as effectively by magnesium. In experiments in calcium-magnesium-free medium, calcium was determined to be five times as effective as magnesium in promoting transformation. EDTA was effective in low concentrations (1.6 mM) in blocking transformation. This effect was not entirely reversible by calcium, and was not detectably affected by magnesium. Several other metal cations were effective in reversing EDTA inhibition of PHA-induced transformation. Zinc and iron appear likely to be essential for PHA-induced lymphocyte transformation in vitro.

Overview

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 · 10.4049/jimmunol.104.3.698

Cites

Statistics

Verification

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

Self-check

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

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

Citations

Cited by

See all 185

Metadata

Authors
Alford, R. H.
Venue
The Journal of Immunology
Published
1970-03-01
Volume
104
Issue
3
Pages
698-703
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1538523410
Cited by
185
References
0
FWCI
4.27
Type
journal article
Language
en
Open access
closed

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

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Metal Cation Requirements for Phytohemagglutinin-Induced Transformation of Human Peripheral Blood Lymphocytes. https://app.cochat.ai/papers/10.4049/jimmunol.104.3.698
The paper
Alford, R. H. (1970). Metal Cation Requirements for Phytohemagglutinin-Induced Transformation of Human Peripheral Blood Lymphocytes. The Journal of Immunology. https://doi.org/10.4049/jimmunol.104.3.698

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.