Evidence map›Paper›PMID 33768300›Full record

ArticleCancer chemotherapy and pharmacology2021

Oral recombinant methioninase combined with paclitaxel arrests recalcitrant ovarian clear cell carcinoma growth in a patient-derived orthotopic xenograft (PDOX) nude-mouse model.

Norihiko Sugisawa, Takashi Higuchi, Qinghong Han, Chihiro Hozumi, Jun Yamamoto, Yoshihiko Tashiro, Hiroto Nishino, Kei Kawaguchi, Michael Bouvet, Takuya Murata and 2 more

Abstract read
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In one paragraph

Article in Cancer chemotherapy and pharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 28 citations in OpenAlex.

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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

12 authors at 4 institutions in 2 countries.

Norihiko SugisawaAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA. n.sugisawa@surg.med.tohoku.ac.jp.ORCID 0000-0003-1887-7268
Takashi HiguchiAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA.
Qinghong HanAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA.
Chihiro HozumiAntiCancer Japan, Inc, 2-23-5 Ryukakujidai, Sakae-cho, Imba-gun, Chiba, 270-1505, Japan.
Jun YamamotoAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA.
Yoshihiko TashiroAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA.
Hiroto NishinoAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA.
Kei KawaguchiDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
Michael BouvetDepartment of Surgery, University of California, San Diego, 3855 Health Sciences Drive 0987, La Jolla, 92093, CA, USA.
Takuya MurataDepartment of Obstetrics and Gynecology, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan.
Michiaki UnnoDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan. m_unno@surg.med.tohoku.ac.jp.
Robert M HoffmanAntiCancer, Inc, 7917 Ostrow Street, San Diego, 92111, CA, USA. all@anticancer.com.
University of California San Diego · USTohoku University · JPAntiCancer (United States) · USKawasaki Medical School · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAdvanced ovarian clear cell carcinoma (OCCC) is a recalcitrant disease, often resistant to the first-line platinum-based therapy. Using a novel patient-derived orthotopic xenograft (PDOX) nude-mouse model of OCCC, we tested whether oral-recombinant methioninase (o-rMETase) could enhance the efficacy of paclitaxel (PTX).

methodsThe OCCC PDOX model was established and passaged in nude mice. The OCCC PDOX models were randomized into 5 groups. G1: untreated control; G2: paclitaxel (PTX) (20 mg/kg, intraperitoneal (i.p.) injection, weekly); G3: o-rMETase (100 units, oral, daily); G4: PTX (20 mg/kg, i.p. injection, weekly) + carboplatinum (CBDCA) (40 mg/kg, i.p. injection weekly); G5: PTX (20 mg/kg, i.p. injection, weekly) + o-rMETase (100 units, oral, daily). The treatment period was 2 weeks.

resultsThe combination of PTX and o-rMETase arrested OCCC tumor growth (relative tumor volume: 1.09 ± 0.63 (mean ± SD)) compared with the untreated control (relative tumor volume: 3.92 ± 1.04 (mean ± SD)) (p < 0.0001). There was no significant difference in relative tumor volume between PTX plus o-rMETase and PTX plus CBDCA (relative tumor volume: 1.39 ± 0.37 (mean ± SD)) (p = 0.93).

conclusionPTX plus o-rMETase arrested the OCCC tumor growth. o-rMETase is readily administered and can greatly enhance first-line therapy of a recalcitrant cancer. The novel and effective treatment strategy in the present report has future clinical potential for patients with OCCC, especially for patients who cannot well tolerate platinum-based therapy.

Indexed as

AnimalsAntineoplastic Agents, PhytogenicCarbon-Sulfur LyasesCarcinomaDisease Models, AnimalDrug Resistance, NeoplasmFemaleHeterograftsHumansMiceMice, NudeOvarian NeoplasmsPaclitaxelRecombinant ProteinsSarcoma, Clear CellTumor BurdenAntineoplastic Agents, PhytogenicCarbon-Sulfur LyasesL-methionine gamma-lyasePaclitaxelRecombinant ProteinsCombination therapyMethionine addictionOral recombinant methioninaseOvarian clear cell carcinomaPaclitaxelPatient-derived orthotopic xenograft (PDOX)Tumor-growth arrest

Identifiers

PMID33768300
OpenAlexW3138211250

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.