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Study · Measured the body's own peptide · 1991

2 results

Biochemical and immunohistological identification of thymosin alpha-1 in MCF-7 breast cancer cells.

Oates KK, Coss MC

Thymus1 May 1991Cited by 3 (Europe PMC)

PMID2063412 (opens in a new tab)PepBankPUB-02063412

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study2

No result from this study comes from a test of the peptide.

Natural levels measured2

These results measure the body's own peptide. Nobody was given the peptide. They are not evidence about taking it. They are left out of key results, evidence counts and charts.

  1. 01LabEndogenous levelIn vitro (cells)Other

    In MCF-7 breast cancer cells grown in TA1-free media, thymosin alpha one was detected in culture supernatants and cytosol by RP-HPLC and radioimmunoassay.

    In plain wordsIn breast cancer cells in a dish, the cells made their own thymosin alpha one, found in the culture fluid and cell contents.

    Outcome
    Not applicableTA1 detected in MCF-7 culture supernatants and cytosol
    Study

    humann: not reported in source

    MCF-7 breast cancer cells
    Outcome group
    Tumor growth · Cancer

    Source sentences

    Summary
    In a search to identify polypeptide growth factors for MCF-7 breast cancer cells we have detected the thymic hormone, thymosin alpha one (TA1) in culture supernatants and cytosol preparations of MCF-7 cells grown in TA1 free media. TA1 was identified by reverse phase-high performance liquid chromato…
    1 context sentence
    Summary · context
    The growth of the human breast cancer cell line MCF-7 is stimulated in vitro by estradiol which has been shown to induce the release of numerous polypeptide growth factors into the culture media.

    This result measures the body's own Thymosin alpha-1. Nobody was given the peptide. It is not evidence about taking it.

  2. 02LabEndogenous levelIn vitro (cells)Other

    In MCF-7 cells grown in TA1-free media, indirect immunofluorescence localized TA1 on or within the cytoplasm.

    In plain wordsIn breast cancer cells in a dish, natural thymosin alpha one was found on or inside the cell cytoplasm.

    Outcome
    Not applicableTA1 localization in MCF-7 cells
    Study

    humann: not reported in source

    MCF-7 breast cancer cells
    Outcome group
    Tumor growth · Cancer

    Source sentences

    Summary
    Indirect immune fluorescence localized TA1 on, or within, the cytoplasm of MCF-7 cells grown in TA1 free media.
    1 context sentence
    Summary · context
    The growth of the human breast cancer cell line MCF-7 is stimulated in vitro by estradiol which has been shown to induce the release of numerous polypeptide growth factors into the culture media.

    This result measures the body's own Thymosin alpha-1. Nobody was given the peptide. It is not evidence about taking it.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 3Current

    10 Oct 2026, 08:55 UTC

    Study results updated

  2. Version 2

    9 Oct 2026, 03:03 UTC

    Study data updated · source update from Europe PMC

  3. Version 1

    9 Oct 2026, 03:02 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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