Stimulating immune responses in early stages may hold key to effective treatment of COVID-19

News Network
March 28, 2020

Bengaluru, Mar 28: Sun Tsu, in 'The Art of War' speaks of a skilful general who can subdue his enemy without any fighting. This constitutes the ultimate triumph which is referred to as stratagem. Today, we would need one such when we are faced with the '21-day corona challenge' for India.
Nearly four weeks back, Dr Jyothsna Rao, Dr Gururaj Rao and I sat across the OPD in the afternoon at HCG Bengaluru discussing our ongoing cancer immunology research. While on this topic, we drifted into the discussion on the coronavirus. During this engaging discussion, we wondered the similarity of the enigma between the virus and cancer. I paused to ask Dr Jyothsna and Dr Guru - how we wish we could do something against this virus.
Dr Jyothsna is a PhD from NCBS and had worked under Dr Ralph Steinman, physician and researcher from Rockefeller University, who won the Nobel Prize for his discovery of the dendritic cell and its role in adaptive immunity in 2011. Dr Gururaj is a molecular and cell biologist who did his PhD at the Chapel Hill, University of North Carolina and is the Director of iCrest.
Jyothsna while hearing our perplexing conversation on the covid intervened, "Yes, surely. I think we should take a break from cancer and focus on the innate and adaptive immunity role in COVID-19."
Thus began this sincere attempt to relook the human immune system from the eyes of the COVID-19.
We have 10 types of immune cells at the least which are widely dispersed in millions across the body. When our body is invaded by a foreign organism (bacteria, fungi or virus), these cells work with each other to destroy the invader.
Now, the question is - how do the immune cells talk to each other? They use small-molecule substances called cytokines (cyto means cells; kine means movement). There are many cytokines that are involved in work on the immune system. The most relevant for viruses are interferons.
Interferons (IFN) as the name reflects have an ability to interfere with the viral activity and stop their multiplication. These specialised signal proteins are released by our cells in response to a viral attack to forewarn other cells. They help build the antiviral proteins within the cells to kill the virus as it tries to invade the new cells.
Historically, interferons are a group of cytokines known to be potent antiviral agents against viruses and a hallmark cytokine induced by the host upon viral infections. Interferons possess unique immunoregulatory activities and are signature cytokines released by (TH1) T immune cells, which are crucial in viral infections.
As the outbreak of COVID-19 grapples us, an urgent need for finding strategies to combat the virus is growing. Coronaviruses (CoVs) are a group of RNA viruses. In patients infected with coronavirus, it was indicated that the activation of the IFN does not occur until 48 hours post-infection. Thus the delayed IFN-related antiviral response by the healthy cells leads to coronavirus evade the immune response.
Numerous studies have presented the success in defeating CoVs by the direct administration of IFNs. In a combination as a concoction, it was shown to synergistically inhibit the virus replication in vitro.
Moreover, it is understood that the earlier induction of IFNs in children although they have a less developed immune system could be the reason behind the children being least affected.
The key to success in reducing the disease fatality might be the stimulation of the immune responses to trigger IFN production at the very early stages of the disease, which might be done through the administration of IFN. Despite the evidence for the efficacy of IFNs in treating CoV-induced infections, the proper dosing and ideal timing for such interventions needs to be verified in clinical trials.
For the later stages of the diseases in advance stages where patients are on ventilator and have developed respiratory distress, we propose to utilise the mesenchymal cells derived from donor bone marrow that have been known to treat acute respiratory syndrome. Mesenchymal cells are known to possess anti-inflammatory activity and thus used often in autoimmune diseases.
With this scientific background, we have activated T cells from healthy donors, in a cGMP facility at iCrest - HCG hospital with an enriched cocktail of cytokines rich in Interferons. Injections of this cocktail we believe will result in a surge of cytokines in the body of the infected person and will boost his ability to fight the virus in the early phases. We are in the initial phases of this study and hope to be ready in the coming weeks with meaningful data on its potential utility.
Currently, it awaits government approvals (Union and state) and we have applied to central drugs authority for their initial evaluation and further directions.
As my Guru often expounded the philosophy of 'Seva' - the goal of education is knowledge, the end goal of knowledge is service. In this attempt to serve our fellow humans at this brink of unprecedented crisis, medical fraternity stands with you and promises to do our best for your safety.
We assure to exhaust every bit of our spirit in this fight against coronavirus. We have lost the sight of shores and travelled thus far, but that is the mandatory first step to cross the ocean. Are we going to succeed in this battle, is something only time will answer. 

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
May 30,2020

Udupi, May 30: A total of 45 Novel Coronavirus (COVID-19) patients, including 17 children were discharged after recovery from the designated hospital in Udupi.

This comes as a big relief amid the rising number of cases in the district.

A total of 164 cases has been confirmed in the district so far.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
February 17,2020

Bengaluru, Feb 17: A combative ruling BJP is bracing to face the onslaught of the opposition Congress and the Janata Dal-Secular (JD-S) in the year's first legislature session beginning on Monday.

"We are ready to counter the opposition parties on any issue they want to raise or discuss, keeping in view the spirit of fairness in a democratic set-up, as we have the numbers to provide a stable government," party's state unit spokesman G. Madhusudhana told news agency here.

Ahead of the 3-day session, the BJP's legislature party met here under the leadership of Chief Minister B.S. Yediyurappa to chalk out its strategy to address issues, move bills and present the state budget for fiscal 2020-21.

"We hope the Congress and JD-S members will allow Governor Vajubhai Vala to address the joint session of the legislature on Monday and not disrupt his speech or walkout of the House before he concludes to maintain the dignity of his office," Madhusudhana said after the BJP meeting at a private hotel over dinner.

The legislature will resume the month-long budget session on March 2 with a special discussion for two days on the Constitution, markings the 70th year of its adoption and enforcement.

About 100 legislators, including the three Deputy Chief Ministers, the newly sworn-in cabinet ministers, council members and party's state unit members participated in the 2-hour long meeting.

"Yediyurappa, who also holds the Finance portfolio, will present the state budget for fiscal 2020-21 on March 5, which will be the fifth time as the fourth Chief Minister in over a decade," the official said.

Both the Houses will deliberate on the budget proposals and pass it by March 31.

In the 225-member Assembly, including one nominated, the ruling BJP has 117, opposition Congress 68, Janata Dal-Secular (JD-S) 34, Bahujan Samaj Party (BSP) one, Independents 2 and vacant 2.

Buoyed up by winning 12 of the 15 seats in the December 5 assembly by-elections, the party is confident of passing the finance and other bills, as it has the support of 119 members, including 2 Independents in the lower House.

"There is no threat to our government, which will complete the remaining 3-year term of the Assembly till May 2023. Yediyurappa has already won the majority test on July 29, 2019, three days after he took office for the fourth time," Madhusudhana said.

The Congress, however, asserted that it would raise the alleged misuse of police against the opposition members, anti-CAA protestors and minorities.

"We will question the morality of the government in making a tainted legislator like Anand Singh a forest minister when a dozen illegal mining cases are pending in the courts," a Congress official told news agency.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
July 5,2020

Bengaluru, Jul 6: With a record 1,925 new cases across the state during the last 24 hours, Karnataka's Covid-19 tally rose to 23,474 including 13,251 active after 9,847 were discharged till date, an official said on Sunday.

"Of the total cases across the state on a single day, Bengaluru accounted for 1,235, taking its positive tally to 9,580, including 8,167 active," said the health official in a statement.

With 37 succumbing to the disease in the state, including 16 from Bengaluru, the state's death toll increased to 372, with 145 from this tech city since March 9.

Of the 603 discharged from across the state during the day, 302 were from Bengaluru, taking its total number of cured to 1,267 so far.

Of the 243 cases in the intensive care unit (ICU) across the state, 132 are in Bengaluru, 15 at Dharwad, 12 at Kalaburagi and 10 each at Ballari and Raichur.

Of the 16,899 samples tested in the day, 14,649 were negative and 1,925 positive. Of the total 7,06,425 samples tested so far, 6,65,525 were negative and 23,474 positive.

After Bengaluru, Dakshina Kannada reported 142 positive cases followed by Ballari 90, Vijayapura 57, Kalaburagi 49 and Udupi and Dharwad 45 each.

Of the total 603 discharged, 52 were from Kalaburagi, 37 from Ballari, 36 from Dakshina Kannada and 22 each from Udupi and Dharwad.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.