Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Autophagy Bladder Cancer

7. juli 2020 oppdatert av: Shaimaa Ramadan, Assiut University

Identification of Novel Autophagy Markers in Bladder Cancer Patients

• Bladder cancer is the most common malignancy of the urinary tract. It represents the 7th most commonly diagnosed cancer in male population worldwide and drops to the 11th when both genders are considered . According to the American cancer society's estimates of bladder cancer in 2017, the number of the new cases of bladder cancer is 79,030, and the mortality figures reached 16,870 .

Studieoversikt

Status

Ukjent

Forhold

Detaljert beskrivelse

  • In Egypt, Bladder Cancer is the most prevalent malignancy among Egyptian males (16%) producing more than 7900 deaths annually . The majority of patients with bladder cancer about (70-80%) present with non-muscle invasive bladder cancer .
  • Autophagy is a highly conserved catabolic process that degrades cellular organelles and proteins to maintain cellular biosynthesis during stress ; cancer cells induced autophagy to counteract with anticancer therapy by helping them to evade apoptotic pathway .Autophagy is achieved by many autophagy-related genes .
  • Previous studies found that human bladder cancer cell lines exhibit high basal level of autophagic activity that may contribute to resistance to current anticancer treatment, so targeting basal autophagy may help to develop novel therapeutic strategies . Autophagy is potently induced by activating transcription factor 6(Endoplasmic Reticulum stress marker) , and Malondialdehyde (oxidative stress marker) .
  • Recently several studies demonstrated the role of autophagy in Bladder Cancer progression as evidenced by detection of microtubule associated protein and its relevance with muscle invasion beside its grade dependency . Autophagy was grade dependent process . Autophagy related gene 7 is a key protein involved in autophagosomes biogenesis, Knockdown of Autophagy related gene 7 induced apoptotic cell death in bladder cancer cell lines measured by increased caspase 3 level, Based on these previous studies autophagy plays a role in bladder cancer progression so interruption of its pathway may serve a novel target for future therapies.

Studietype

Observasjonsmessig

Registrering (Forventet)

150

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

      • Assiut, Egypt, 71111
        • assiut

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Barn
  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

patients with confirmed bladder cancer (histopathologically) having LGBC(Low Grade bladder cancer) undergoing either TUR(transurethral resection of Bladder Tumour) or Radical Cystectomy and patients having HGBC(High Grade bladder cancer) undergoing either TUR(transurethral resection of Bladder Tumour) or Radical cystectomy. Healthy controls[age and gender matched](with no previous history of gross hematuria, urolithiasis, or active urinary tract infection)

Beskrivelse

Inclusion Criteria:

  • 1)patients confirmed histopathologically to have bladder cancer. 2) Both sexes. 3) Patients who will accept to participate in the study.

Exclusion Criteria:

  • Patients with past history of Bladder Cancer with previous chemotherapy or any other types of cancer in the last 5 years.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Low Grade group

• 50 tumor tissue samples from patients with Low Grade Bladder Cancer undergoing either trans urethral resection of bladder tumor or Radical Cystectomy ,

The followings markers must be estimated :

  1. Autophagy markers:

    • ( Atg7) level using (quantitative real time polymerase chain reaction).
    • (LC3A)level using immunohistochemistry .
  2. ER-stress marker: (ATF6) level using ELISA(Enzyme Linked Immuno sorbent Assay)
  3. Oxidative stress Marker:(MDA)using chemical method
  4. Apoptotic marker:(caspase 3) using(quantitative real time polymerase chain reaction) .
High Grade group

• 50 tumor tissue samples from patients with High Grade Bladder Cancer undergoing either trans urethral resection of bladder tumor or Radical Cystectomy,

The followings markers must be estimated :

  1. Autophagy markers:

    • ( Atg7) level using (quantitative real time polymerase chain reaction).
    • (LC3A)level using immunohistochemistry .
  2. ER-stress marker: (ATF6) level using ELISA(Enzyme Linked Immuno sorbent Assay)
  3. Oxidative stress Marker:(MDA)using chemical method
  4. Apoptotic marker:(caspase 3) using (quantitative real time polymerase chain reaction) .
Safety margin group

• 50 normal bladder urothelial tissue samples from the safety margin around the tumor(0.5cm to the tumor),

The followings markers must be estimated :

  1. Autophagy markers:

    • ( Atg7) level using (quantitative real time polymerase chain reaction).
    • (LC3A)level using immunohistochemistry .
  2. ER-stress marker: (ATF6) level using ELISA(Enzyme Linked Immuno sorbent Assay)
  3. Oxidative stress Marker:(MDA)using chemical method
  4. Apoptotic marker:(caspase 3) using (quantitative real time polymerase chain reaction).
Control group

• 50 (age and sex matched )control

The followings markers must be estimated :

  1. Autophagy markers:

    • ( Atg7) level using (quantitative real time polymerase chain reaction).
    • (LC3A)level using immunohistochemistry .
  2. ER-stress marker: (ATF6) level using ELISA(Enzyme Linked Immuno sorbent Assay)
  3. Oxidative stress Marker:(MDA)using chemical method
  4. Apoptotic marker:(caspase 3) using (quantitative real time polymerase chain reaction)..

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
autophagy marker
Tidsramme: baseline
differences in the level of Atg7(autophagy marker) in Low Grade bladder cancer and High Grade bladder cancer groups in comparison with safety margin and healthy control group.
baseline

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
stress markers
Tidsramme: baseline
Relation between LC3A and muscle invasiveness in bladder cancer progression, and relation between levels of ATF6, activating transcription factor6 (ER stress marker) -MDA malondialdehyde (oxidative stress marker)-Caspase3 (apoptotic marker) in different study groups and bladder cancer development.
baseline

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Etterforskere

  • Hovedetterforsker: Shaimaa Shakhoun, assiut

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Forventet)

1. desember 2020

Primær fullføring (Forventet)

1. oktober 2021

Studiet fullført (Forventet)

31. desember 2021

Datoer for studieregistrering

Først innsendt

17. august 2017

Først innsendt som oppfylte QC-kriteriene

17. august 2017

Først lagt ut (Faktiske)

21. august 2017

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. juli 2020

Siste oppdatering sendt inn som oppfylte QC-kriteriene

7. juli 2020

Sist bekreftet

1. juli 2020

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • ABC (Annen identifikator: Children's Health Foundation)

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .