Evidence map›Paper›PMID 20061826›Full record

ArticlemAbs

High level expression of functional human IgMs in human PER.C6 cells.

Anna Tchoudakova, Frank Hensel, Alec Murillo, Bernie Eng, Marketa Foley, Lakee Smith, Frank Schoenen, Antonia Hildebrand, Arndt-René Kelter, Leodevico L Ilag and 6 more

Open access · goldAbstract read
In one paragraph

Article in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.6field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 61 citations in OpenAlex.

  1. Review
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  9. Review
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  12. Site-Specific N-Glycosylation of Recombinant Pentameric and Hexameric Human IgM.Journal of the American Society for Mass Spectrometry · 2016
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Designed IgM from glycoengineering.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  18. Expression and glycoengineering of functionally active heteromultimeric IgM in plants.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  19. Article
  20. Article
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

16 authors at 3 institutions in 2 countries.

Anna TchoudakovaPercivia LLC, Cambridge, MA 02135, USA.
Frank Hensel
Alec Murillo
Bernie Eng
Marketa Foley
Lakee Smith
Frank Schoenen
Antonia Hildebrand
Arndt-René Kelter
Leodevico L Ilag
H Peter Vollmers
Stephanie Brandlein
Jane McIninch
John Chon
Gene Lee
Marco Cacciuttolo
Patrys (Germany) · DEUniversity of Würzburg · DEUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Natural IgM antibodies play an important role in the body's defense mechanisms against transformed cells in the human body and are currently being exploited both in prognoses of malignant lesions and in the therapy of cancer patients. However, despite growing interest and clinical promise, thus far the IgM class of antibodies has failed to gain widespread commercial interest as these are considered to be difficult to produce recombinantly. IgMs are polymeric and have a relatively large mass. In addition, IgM molecules are heavily glycosylated and, when produced in non-human cell lines, they may contain non-human glycan structures which may be potentially immunogenic. Clearly, production systems capable of expressing human recombinant IgM antibodies are needed. We have successfully used PER.C6 cells-a human cell line-to generate three separate human recombinant monoclonal IgMs in suspension cultures in protein-free medium. All three of the IgMs were constructed with joining (J) chain and were expressed in the pentameric form. One of the IgMs was also expressed as a hexamer without J chain. Clones with cell specific productivities greater than 20 pg/cell/day were generated, which led to yields of 0.5 g/L to 2g/L in fed-batch production. All the IgMs expressed were biologically active as shown in binding and cytotoxicity assays. These studies demonstrate the potential of PER.C6 cells for the production of high levels of functional recombinant IgM and other polymeric molecules, using a straightforward and rapid stable cell line generation method.

Indexed as

AdenocarcinomaAntibodies, MonoclonalBioreactorsBiotechnologyCarcinomaCell Culture TechniquesCell LineCell Line, TumorCulture Media, Serum-FreeGene Expression RegulationHumansImmunoglobulin MLung NeoplasmsPancreatic NeoplasmsRecombinant ProteinsAntibodies, MonoclonalCulture Media, Serum-FreeImmunoglobulin MRecombinant Proteins

Identifiers

PMID20061826
PMCPMC2725415
OpenAlexW2026122112

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.